◆ 24K LABS
THE GOLD‑402 INDEX
01 APIs & Services 356
Endpoints that do a job and charge for it. The largest shelf, and the one where "it answered when we knocked" carries the most weight — an API that does not respond is not a product, it is a URL.
— a specification sheet —
356 of 736 curated services sit on this shelf. 393 carry a dated knock; most recent . 53 currently answer nothing. A knock is one HTTP request that got an answer — not a delivery test. Read a stamp as reachable and speaks the protocol, never as worth the money.
- _done Suite of x402 micropayment-gated utility APIs for AI agents (web lookups, site analysis, data and more).
- /deslop Removes AI-writing tells (em dashes, hedging, throat-clearing) from a draft, returns cleaned text plus a ch…
- 100pro Token Contract Risk Screen Pre-trade risk screen for EVM (Base) and Solana token contracts: honeypot, clone/mimic and owner-privilege…
- 24K Labs Chronographer Temporal context for AI agents: 15+ time systems (lunar, solar, market sessions, circadian, ISO/Julian) plu…
- 402cron Schedules signed HTTP deliveries to a registered endpoint on a cron schedule, paid per delivery in USDC on…
- 402PIXEL AI-agent-only territory game on a shared 402-tile board.
- 402post Classified listings board for agents: `POST /v1/posts` answers 402 ($0.005 USDC on Base for a 30-day listin…
- 402registry Checks whether AI crawlers (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) actually see a website: `GET /…
- 4yearcycle data catalog Twelve pay-per-call data endpoints for agents covering EU tenders (TED) and grants (CORDIS), crypto derivat…
- AEO Scanner (Convrgent) AI search visibility audit for any website.
- afriref Government reference data for African countries as JSON: central-bank policy rates, VAT, income and corpora…
- Agent Council Sends one question to three or four different LLMs that answer independently, then returns a single chaired…
- Agent Data API Pay-per-call SEC and supplement-safety data for agents: latest SEC filings ($0.003), parsed Form 4 insider…
- Agent Embassy Agents pay per call in USDC via x402 for verified web checks with signed Outcome Receipts, encrypted recove…
- Agent Hub — 48 pay-per-call tools for agents behind one wallet: web search, page-to-Markdown, scraping and JSON extract…
- Agent Ready Website agent-readability scanner.
- Agent Research Tools Cited research brief from Wikipedia, DuckDuckGo, Hacker News and Crossref ($0.01), web page to markdown ($0…
- agent-audit x402 seller audit, outbound link check, and quote-check APIs on Base USDC at $0.02 / $0.01 / $0.005;
- agent-exec Accountless pay-per-use code execution for software agents: POST source code and receive stdout, stderr and…
- agent-exec RPC Accountless JSON-RPC: one call to Base, Base Sepolia, Ethereum or Solana with no provider account, $0.002 U…
- AgentBIT 86 pay-per-call tools for agents, including page-metadata extraction, Base wallet profiles, Wikipedia groun…
- AgentData API Real-time crypto market data.
- AgentForge DeFi safety APIs for agents: pre-sign EVM transaction simulation, sanctions and scam address screening, a r…
- AgentKit Data Three GET pay-per-call data APIs: web page to clean Markdown ($0.005), Solana SPL/Token-2022 mint risk chec…
- AgentPay Real-world service booking via x402 + Stripe.
- AgentPay Doc Tools Extracts per-page text from PDF URLs, normalizes RSS, Atom and JSON feeds into JSON items, and lists a site…
- AgentPay Domain & Network Lookup DNS records, registry WHOIS via RDAP, IP network ownership with reverse DNS, and a one-call domain report c…
- AgentPay Insurance Lead Analysis Classifies an inbound insurance lead, extracts structured fields from it, and returns a lead summary in one…
- AgentPay Summarize Summarizes up to 20,000 characters of text into a 250-word summary returned as JSON.
- AgentPay Token Safety Reports rug-pull and honeypot risk signals and liquidity for a token contract address.
- AgentPay Web Extract Fetches any URL and returns the main content as markdown with title, Open Graph metadata, canonical URL and…
- AgentRXI — 232 pay-per-call tools for agents behind one wallet: 22 OpenAI-compatible LLMs priced per token, web search…
- AgentSearch Web search ($0.008), page-to-Markdown extract ($0.007) and headless-browser render for JavaScript pages ($0…
- AgentServices Paid data APIs for AI agents: crypto prices, technical indicators, DeFi yields, IP geolocation, and URL met…
- agentsvc.io 20 utility tools for AI agents: `ip-lookup`, `dns-lookup`, `qr-code`, `exchange-rates`, `email-validate`, `…
- Aigregator Structured data on 5,336+ AI tools via REST API and MCP server.
- AIsa Leading x402 payment processor.
- AISkills402 Tested AI agent skill files (SKILL.md): `GET /v1/skills/{slug}/file` answers 402 ($0.01 to $0.10 USDC on Ba…
- aiworker-data — DeFi yield pools and single-protocol snapshots from DefiLlama (refreshed every 5 minutes), plus clean-Markd…
- AlphaClaw Autonomous alpha hunting on Polymarket and DeFi.
- Anansi Haven Council Grade Rule-based trade postmortem grader (fixed rules, no AI model calls): scores entry/exit efficiency, stop pla…
- Animica Research — One call that searches the web, fetches the top pages and returns their readable text with every requested…
- AnyBrowse Autonomous web browsing agent.
- Aomi Labs Task API An x402 v2 API that prepares and simulates an onchain intent for 0.01 USDC through Circle Gateway on Arc Ma…
- API Acre Website Metadata Extracts title, canonical URL, headings, hreflang, icons, feeds, Open Graph, Twitter Cards, and JSON-LD typ…
- Apify Apify's marketplace of web-scraping and automation Actors, reached by buying prepaid tokens over x402 for $…
- ApiToll Crypto DeFi yields, protocol TVL, DEX volume and token prices, 11 routes at $0.001 USDC on Base and Solana.
- apix402 Sixteen paid endpoints for agents, each answering against the source that decides rather than a summary of…
- Appraxa IP Valuation Patent valuations to the DIN 77100 standard in basic, standard and premium tiers, with a lookup by patent n…
- aptu.dev Machine-payable API microservices for agents: echo probe (`POST /v1/echo`, $0.01), resume ATS scoring (`POS…
- Arch Tools 58 production API tools for AI agents.
- Argos Bot CTS Bridge API Provides Arc/Base token mappings, wrapped supply and ownerless Circle CTS bridge verification for 0.005 USD…
- AskClaude Pay-per-query Claude API.
- Astro Agents Deterministic Western and Vedic astrology computed from NASA/JPL DE440 with no LLM (natal charts, transits,…
- AtlasUnited Storm and Hazard Data API Pay-per-call x402 endpoints on Base for live weather and active NWS alerts, forecast risk grades, and hazar…
- Audit Alpha Returns bounded static-HTML landing-page findings and suggested fixes for copy, calls to action, and access…
- Aura Verification Deterministic checks for agents and x402 sellers: verify a public HTTPS page's reachability, backlink, cano…
- Ausca Metered infrastructure services for agents: document OCR, document analysis, media transcription, leased br…
- Automaton Oracle Sovereign crypto intelligence: real-time prices, global macro intelligence, pump.fun graduation radar, trad…
- Averray Verify Runs bounded verification profiles and returns signed, content-addressed receipts, with x402 USDC on Base c…
- AVT x402 Data Services 16 pay-per-call data and validation APIs: field-verified AV/IT device-integration knowledge base (curated b…
- AX1 Token Verdict Send a Base token address and get an AI-written verdict with onchain metrics and a shareable card, $0.02 US…
- Azimuth Radio-frequency positioning network: estimates a location from cellular observations, with node registratio…
- Basalt 20 pay-per-call utility tools for AI agents: URL metadata extraction, domain availability via RDAP, email/M…
- Base Token Risk Check Reports an ERC-20 on Base for honeypot/tax/owner-privilege flags (GoPlus), verified source, proxy/mint/paus…
- Base toolbox Base Uniswap v3 swap preflight, leftover allowances, tx explain, and transfer check at $0.10 USDC on Base v…
- Base tx-decision Submit-now-or-wait decision plus EIP-1559 fee sizing for Base mainnet transactions, computed live from RPC…
- Base Wallet Profile API Returns a Base wallet activity profile with native balance, transaction counts, token transfers, first/last…
- BaseLens Base token scam and honeypot check with simulated sell, plus page-to-markdown fetch, transaction explainer,…
- bilbop Solana Mint Info — Returns on-chain supply, decimals and mint/freeze authorities for a Solana SPL mint for 0.01 USDC on Solana…
- BitBooth PageDelta renders a public web page into bounded Markdown and, on later calls, reports what changed against…
- Bitrefill Search and buy gift cards, eSIMs and mobile top-ups across 180+ countries, paying the invoice in USDC over…
- Black Label Continuum Audit Scores eight self-declared AI-agent continuity capabilities and returns a deterministic 0–100 score with ra…
- BlinkCodes Storefront selling real-world digital goods to agents: gift card codes (Steam, Razer Gold, PSN, Apple), gam…
- BlockLabs Catalog Dropshipping storefront selling physical products to agents: 300,000+ item catalog, paid full-text search a…
- Bloomfilter x402-powered domain registration API for AI agents.
- BNM Data Shop Official public-data caches on 37 paid GET routes (FDA, USDA, USCG, and US/UK/EU/Canadian agency texts and…
- botsmith X (Twitter) lookups for agents: a post by id, an account by handle, search, a dossier and a watchlist.
- Brian Booms x402 Store 33 digital products (music licenses, podcast packs, sample packs, custom commissions, wallpapers) sold via…
- BridgeNode OpenAI-compatible LLM inference bridge: 38 models (GLM, Kimi, MiniMax, DeepSeek, GPT-OSS), chat completions…
- BSC Agent Utilities 8 pay-per-call utility APIs for AI agents at $0.001 USDC per call on Base via x402 v2, no API key: BSC gas…
- BTC Intel — Live Stacks/Bitcoin market intelligence for AI agents: STX/BTC/USD spot, STX-BTC ratio and sats-per-STX;
- Calibrated Similarity Search API Stateless NMI + cosine fusion similarity search over pre-computed numeric vectors, with an entropy-calibrat…
- CapGain safety and work artifacts EVM token risk and Base swap preflights from $0.01, plus machine-buyable invariant tests ($0.03), repositor…
- CentRake Universal calculator with 3-layer self-correcting verification.
- Checkpoint402 Company Events (SEC 8-K) Returns the latest SEC 8-K filings market-wide or for one ticker, with item codes in plain English, high-im…
- Checkpoint402 DeFi Yield Finder Returns top DeFi pool yields from DefiLlama filtered by asset, chain, minimum TVL and risk tier, with the r…
- Checkpoint402 New Token Safety Feed Lists newly launched token pools on Base, Ethereum or BSC with a 0–100 safety score and red flags from GoPl…
- Checkpoint402 Transaction Explainer Explains a Base or Ethereum transaction in plain English with the decoded sender, function called, token an…
- China Hot Search API Real-time hot-search lists from 9 Chinese platforms (Weibo, Baidu, Douyin, Zhihu, Toutiao, Bilibili Popular…
- Circadian Web data extraction for agents, run as a disclosed autonomous AI-agent business: page-to-Markdown with meta…
- Citable SEO and AI-visibility data on 17 paid GET routes: keyword research, on-page audits, AI-citation checks acro…
- City Table Clean Cleans a Socrata or CKAN city open-data CSV by URL (trims whitespace, normalizes headers, ISO dates, plain…
- Clarity — Base mainnet x402 gateway for external USDC payers: OpenAI-compatible chat ($0.001) and short research/verd…
- Clear Fetch one public URL as markdown from the public HTML (Readability + Turndown).
- Cloudflare Workers Edge payment verification at scale across 300+ data centers globally.
- Coinbase Developer Platform Official CDP implementation processing hundreds of thousands of transactions weekly.
- Coinnect Money transfer routing API.
- Colombia TRM Official Superintendencia Financiera daily USD/COP TRM as prepaid x402 at $0.005 USDC on Base.
- Compounder Market API Scores a bounty or paid opportunity from a JSON description and returns a deterministic 0-100 score, a purs…
- Compute State API Returns the cheapest official-vendor compute SKU for one described job, inference tokens or on-demand GPU h…
- CONNSKILL Growth Services Growth infrastructure for AI agents: SEO/SERP research (Google SERP reports, keyword volume/CPC, ranked key…
- Content Intelligence API AI-powered web content extraction and analysis.
- Contract Guard Pre-interaction EVM contract risk signals: EOA/contract/self-destructed status, EIP-7702 delegated-EOA dete…
- corpusAI Cloud Pricing Cloud instance, GPU and LLM token price data (on-demand and spot prices by zone, GPU term structure, capaci…
- Council of AI Independent AI-behaviour measurement packs and EU AI Act evidence over x402 on Base;
- crosscheck Reviews an AI agent's draft before its human sees it and returns pass or specific issues with fixes, recomp…
- crosscheck accept Checks work one agent hands another against the task it was given, before the buyer pays or releases escrow…
- crosscheck skillcheck Security review of an AI agent skill or MCP server's files before install, read and never run: code rules f…
- CrossFin 15 paid Korean market data APIs (Kimchi Premium, KOSPI, Bithumb, Upbit, Coinone, FX, headlines, trading sig…
- Crypto Pulse BTC/ETH/SOL/HYPE spots with 24h change, Fear & Greed, Hyperliquid funding and open interest, and DefiLlama…
- Crypto Sentiment API Real-time crypto sentiment for any ticker, aggregating 8 crypto news outlets and the Fear & Greed Index int…
- cryptofeed402 Hyperliquid perp funding (hourly, 8h, annualized), open interest and funding-extreme rank for any listed pe…
- CryptoSignalBot x402-gated crypto volume anomaly scanner.
- Crysha Price Oracle Aggregated crypto prices (multi-source BTC/others).
- csno Provably-fair coinflip, dice, and European roulette for agents: `POST /api/csno/chips` answers 402 ($0.10 f…
- Cult OS Developer Tools PR triage, JSON, hashing and encoding utilities and signal feeds for agents, 15 routes at $0.001–$0.20 USDC…
- CYBERA Compliance API Crypto compliance suite.
- D-007 Document Classify and Rename Plan Generates a dry-run classification, traversal-safe filename, folder proposal, and duplicate signals for one…
- Data Quality Gate Deterministic post-scrape data cleaner: repairs how data was encoded — residual HTML, mojibake (`Café` → `…
- DDG Agent-Payable Services Machine-readable security and commerce primitives for AI agents.
- DeepBlue Trading API AI-powered crypto intelligence from an autonomous trading team running real money on Polymarket.
- Deepnets Solana token intelligence for traders and trading agents: token safety analysis, holder graphs, funding-net…
- DeFi Intelligence API Unified DeFi security, bridging, analytics.
- DELTA Witness Public-web evidence capture, deterministic preflight verification, and guarded-action evidence endpoints, $…
- DeskCrew Agent-native helpdesk.
- DevDrops 22 pay-per-query data APIs: prediction markets (Polymarket + Manifold), property intelligence, sports odds,…
- DevX 7702 Sweeper Check Reports EIP-7702 delegations for 1-20 EVM addresses on 8 chains with delegate bytecode analysis for sweeper…
- DevX Address Poisoning Check Checks a recipient against the sending wallet's Ethereum and Base history for lookalike addresses and zero-…
- DevX Crypto Link Check Checks 1-10 URLs for wallet, exchange and dapp lookalikes, punycode, RDAP domain age, DNS, redirects and pa…
- DevX Multichain Balances Native and major-token balances (USDC, USDT, DAI, EURC, WETH, WBTC/cbBTC) for an EVM, Solana and/or Tron ad…
- DevX Repo Run Check Scans 1-3 GitHub repos' README, install scripts, package.json, VS Code tasks and Makefile for download-and-…
- DevX Token Snapshot ERC-20 USD price, FDV, total DEX liquidity, top pools and contract risk flags (proxy, owner, mint, blacklis…
- Digital Energy Solana RPC Solana mainnet JSON-RPC served from a validator operator's own bare-metal node in Chicago, $0.005 USDC per…
- DNS Doctor Email-authentication and DNS diagnostics for agents: SPF, DMARC, DKIM, MX, blacklists, domain/SSL expiry an…
- Dokimo Verify API Pay-per-call x402 endpoint that independently verifies a Merkle evidence proof to its committed root and re…
- Domain Intelligence API 8-endpoint domain analysis: WHOIS, multi-resolver DNS, SSL/TLS grading, Wappalyzer tech stack detection, se…
- dotrockets Agent Tools A mixed toolbox: a live geophysics snapshot (KP index, Schumann resonance, solar wind), an AI-visibility sc…
- DreamWidget Website widgets (logo showcases, a YouTube/Vimeo/Twitch/TikTok video wall) for an agent's client: POST /api…
- DrinkedIn data feeds Records of licensed bars and venues from public alcohol-licensing registers, cocktail recipes, and venue-ec…
- dTelecom STT Real-time speech-to-text API.
- ECB FX Reference Converts amounts across ECB-supported currencies from the European Central Bank's daily euro reference obse…
- EDGAR Data API SEC EDGAR data for agents: company profiles by ticker, recent filings, full XBRL company facts, single-conc…
- Einstein AI Blockchain analytics built on Bitquery data, each query offered raw or with AI-written analysis: newly depl…
- ERC-8004 Agent Liveness Checks whether an agent registered in the real ERC-8004 Identity Registry (Base Sepolia testnet) is actuall…
- eu-validate Validates IBAN (mod-97 offline), EU VAT number (VIES), and company domain (DNS/MX) in one x402 call.
- EVM Selector, URL Status, Crypto Price and DNS Lookup Four small agent utilities on the same x402 host: decode an EVM 4-byte function selector or calldata via So…
- Exa Exa's web search and page-contents endpoints sold per call over x402, $0.001–$0.007 USDC on Base, Solana an…
- Excelexi — Technical-indicator and market-analysis API for trading agents: 73 indicators and 24 derived signals across…
- exhibit402 Dual-cloud evidence capture: two independently hosted, pinned-image browsers (Google Cloud us-west2, Fly.io…
- Fabler Labs x402 Storefront Security and utility APIs for AI agents on Base, USDC per call, no signup: secret scan ($0.005), agent-conf…
- Feeless402 Reference pay-per-call endpoint settling in Nano (XNO): GET /premium answers a v2 402 at 0.0001 XNO per cal…
- Fetchgate Agent-facing storefront + web-reader API on Cloudflare Workers.
- fetchx402 Network utilities for agents: DNS, SSL, WHOIS (RDAP), HTTP headers, redirect tracing, host-intel and uptime…
- Find Domain Domain research API.
- Fly Labs Agentic Market YouTube data APIs for AI agents.
- fly.ai Robinhood Chain trade costs (`GET /cost/{ticker}`, $0.02), token checks (`GET /token/{address}`, $0.03), Ti…
- Forge Attestation Signed third-party evidence records for x402 transactions, where every claim is labelled `witnessed` or `as…
- Forge Launch Signals Live pump.fun launch-signal feed: up to 100 newest launches with normalized screening verdicts (class, reas…
- FractalAI x402 Proofs Seven pay-per-call endpoints on Base (x402 v2, USDC via EIP-3009 gasless settlement) signing with ML-DSA-65…
- Fresh402 On-demand public-web freshness checks, extraction, deterministic Smart Diff and JSON OpenAPI Contract Diff…
- Gardenpatch Growth Coaches Seven growth coaches (strategy, sales, marketing, operations, retention, technology, people) answering a mo…
- Gate402 Pay-per-call tools for agents: a public URL rendered to clean Markdown, Base on-chain and DEX data, token r…
- Gateway Website Quick Check Returns an asynchronous one-page website metadata report for $0.05 USDC on Base via x402, with private stat…
- GBLIN Protocol Treasury and risk data for a NAV-backed basket token on Base (cbBTC/WETH/USDC) with an automated on-chain c…
- Genesis Verify Independent on-chain payment verification: re-derives a token Transfer from a second Base node and returns…
- GenTech x402 Gateway 15 pay-per-call endpoints for crypto intelligence, wallet analysis, token risk scoring, NFT search, game/mo…
- Genuine Good Grants Sourced U.S.
- geo-gateway Pay-per-call Mapbox geospatial proxy.
- GigSoul AI Research Agent 23-endpoint AI research API: SEC filings, earnings calls, competitor analysis, market research, document in…
- GLEE Acceptance Verifier Deterministic git unified diff acceptance verifier: checks delivered code patches against caller-declared p…
- glim.sh Live social-profile data for agents (profiles, followers, user search and follow checks), 24 routes at $0.0…
- GlobalAPI US macro data (CPI, unemployment, GDP, Fed rate, yields) with AI-written commentary, plus OFAC wallet scree…
- GlobalRules Per-country practical facts for agents: VAT/GST rate, public holidays, visa requirements, tipping customs,…
- Go Bag Prepaid travel eSIM data plans for a person's phone or tablet, bought by an AI agent per order in USDC on B…
- Goldsky Edge RPC Pay-per-call EVM JSON-RPC across 150+ chains, 5 atomic USDC ($0.000005) per call, x402 or API key.
- Goldsky Feeds: Prediction markets and Chain datasets Pay-per-call Polymarket activity and EVM block data, 10 atomic USDC ($0.00001) per request flat.
- Goldsky Feeds: Wallets and Tokens Pay-per-call wallet balances, transfers, and token prices, 350 atomic USDC ($0.00035) per request.
- Gondola Pay-per-request LLM inference over x402 (OpenAI-compatible chat, images, and Anthropic messages);
- Gotobi Calendar API Japanese FX gotobi date intelligence for trading agents.
- GPT55 Model Gateway OpenAI-compatible GPT-5.6 Luna Standard chat completions via x402 USDC on Base for $0.00293 per POST request.
- GPU Rental Price Feed Current on-demand GPU rental prices (min and median USD per GPU-hour by GPU model) from Vast.ai's public ma…
- GPU-Bridge 30-service GPU inference: LLM, image generation, embeddings, STT, TTS, PDF processing in one API.
- gravee 23 pay-per-call business lead generation and market intelligence endpoints: scored leads by vertical and lo…
- Grey Ridge Signals — x402 Data & Security APIs Pay-per-call DeFi/market-data and token-safety APIs: pre-trade swap-safety gate `/gate/swap` (GO/HOLD/BLOCK…
- grist.tools Deterministic HTTP micro-utilities for AI agents: page cleaning and metadata, document conversion (PDF, DOC…
- GrokBot Base token check Returns a 0-100 pre-trade risk score for a Base ERC-20 from on-chain reads, $0.01 USDC on Base via x402.
- Groundcheck Claim grounding and delivery attestation for AI agents: machine-verified verdicts (supported/refuted/unveri…
- Headless Oracle Signed market-state receipts for exchanges, one exchange or several per call, each Ed25519-signed with a 60…
- Hermes Commerce Public-site checks sold as 27 POST jobs: Impressum, DSGVO, BFSG, cookie, Preisangaben and Widerruf signals…
- Hodler DeFi Intelligence Stablecoin monitoring, redeem arbitrage, cross-chain pair discovery across 10 EVM chains.
- Horizon Pulse Returns web fetch, search and PDF text, x402 endpoint checks, SEC, BLS and Treasury data, domain checks, NW…
- HSH Data-on-Demand Company and contact data for B2B research: a live profile of a company by name or domain, and named decisio…
- HydraTrader x402 Catalog Three pay-per-call Base USDC helpers via x402 (no API key): `POST /v1/cheap-errand` ($0.01) summarize/rewri…
- HyperNatt Terminal Liquidation-cluster map and a Li.Fi cross-chain swap quote, $0.001 USDC per call on Base and Solana.
- Hyrule Cloud IPv6-native VMs with root SSH from $0.20/day, network diagnostics (DNS, BGP, IP, RDAP/WHOIS, deep TLS, MX,…
- IBANforge Pre-payout IBAN screening: validation + issuing-bank identification against 6 national bank registers (CH/L…
- Indo News API Indonesian data for agents over 25 paid GET routes and 31 MCP tools at `POST /mcp` (8 free): up to 25 headl…
- Instant Expert Pay per question for a written or voice answer from a real professional the agent names (name and company,…
- Intel API AI-synthesized token due diligence.
- Isocast Per-signal Polymarket weather-market data across 37 cities.
- Israel Company Verify Verifies Israeli companies against structured public-registry data and returns evidence for $0.05 USDC per…
- Israel Invoice Payment Gate Pre-payment gate for Israeli tax invoices and accounts-payable agents.
- JMT x402 Agent Tools 25 endpoints: web search, AI analysis, crypto/stock data, SEC filings, company intel, news, sentiment, macr…
- JPVerify Japanese company (corporate number), qualified-invoice (T-number) and address verification against NTA, Jap…
- jurat Evidence tools for agents: fetches a public URL, archives the bytes and returns a signed attestation, with…
- Kael Ecosystem Pulse Paid 24h Solana ecosystem digest for agents via x402 Exact SVM USDC on Solana mainnet (PayAI facilitator):…
- Kalshi BTC Hourly Signal Current model signal for Kalshi's BTC hourly above/below markets (KXBTCD) from a volatility model that trad…
- Kalshi ETH Hourly Signal Current model signal for Kalshi's ETH hourly above/below markets (KXETHD) from the same volatility model as…
- Kalshi SOL Hourly Signal Current model signal for Kalshi's SOL hourly above/below markets (KXSOLD) from the same volatility model as…
- Kalshi–PredictIt Arb Matches Kalshi political markets to PredictIt contracts and returns both arbitrage directions priced after…
- kepler-ops-tools Nine pay-per-call agent utility endpoints: hashing/HMAC (six algorithms), base64/hex/url encoding, JWT deco…
- Kerdos Market Intelligence AI market intelligence for agents and traders.
- Know Your Human (Convrgent) Personality intelligence API.
- KnowMint Open-source knowledge marketplace.
- KR Crypto Intelligence Korean crypto market data.
- Kraken Crypto Signals Crypto market-state calls for a trading pair (BUY, SELL or HOLD with a confidence score), a market scan, in…
- Kronos x402 API Crypto derivatives and market data for trading bots across 17 assets: funding, open interest, basis, liquid…
- KushBitx AgentProof Quick Check Checks that Base reports chain ID 8453 and that the official USDC contract has code, returning PASS or FAIL…
- Laso Finance Prepaid US cards, reloadable card balances and catalog gift cards bought with USDC over x402 on Base or Sol…
- Liam Tools JSON utilities for agents (numeric summaries, text metrics, normalization, budget checks).
- Liam Tools Merchant Connect Generates an 11-file business-specific x402 digital-service integration kit with catalog, OpenAPI, XRP gate…
- LitWit — The Literary Witness Literary notary API: submit a SHA-256 hash of a written work and receive a tamper-evident hash-chained rece…
- Live Entity Verification API Cross-signal Bayesian corroboration of entity existence: fuses WHOIS, Certificate Transparency, Wayback Mac…
- LLM Token Price Feed Current USD per 1M input/output token prices for ~300 LLMs from OpenRouter's public model list (refreshed e…
- LoneStarOracle 43 pay-per-call data APIs: token and wallet risk scoring, smart-contract security audits, whale and bundle…
- Loyal Spark Onchain loyalty platform on Base where businesses run branded rewards and agents manage offers through 31 p…
- M0 URL Extraction Fetch a public URL, get back clean machine-consumable text (HTML noise stripped, SSRF-guarded).
- Macro Pulse Pay-per-call macroeconomic indicator API sourced from the World Bank (GDP growth, inflation, unemployment t…
- MadeOnSol Solana KOL trade feeds, deployer reputation, token risk/buyer-quality scoring, and wallet PnL for AI agents…
- Mailcheck API Email validation: syntax, MX records, disposable domain detection, free provider check, role-based address…
- Market Intelligence API 76 pay-per-call x402 routes for AI agents: trading decisions with a public track record, on-chain order flo…
- Mart402 Web and PDF extraction for AI agents: URL-to-Markdown extraction, PDF parsing with dual-engine OCR consensu…
- MCPFax Public-Data Utility 31 keyless public-data endpoints for AI agents: geocoding, weather, air quality, VIN decode, FX, stock quot…
- Melchior Video Context Captions from a public YouTube video as transcript text with timestamped segments, phrase search inside a v…
- Melvea A structured catalog of honey varieties (color grade, intensity, flavor, texture, uses) with research citat…
- Mercury402 Pay-per-call U.S.
- Micro Data API Factory Japan back-office lookups for agents: payroll deductions by salary, social-insurance grades, consumption ta…
- modelprices.xyz Normalized LLM market data: per-token prices, context windows, and capability limits for 2,000+ models acro…
- Moltalyzer Four AI intelligence feeds: hourly Moltbook community digests, daily GitHub trending repos, Polymarket pred…
- MoltGuard Agent trust scoring, Sybil detection, Polymarket integrity, Ed25519 Verifiable Credentials.
- Momentum Brief Pay-per-call 8–12 line crypto momentum brief (price, 24h/7d change, market cap, trending rank, top DEX pair…
- MoonMaker API AI-native crypto intelligence.
- MOSS Agent AI-powered coding services: code review ($0.005), translation ($0.003), code explanation ($0.003).
- Mossgate Trust API Onchain risk checks for Base ERC-20 tokens and wallets: token verdict returns ok/caution/danger with liquid…
- MusedIn Job network for agents: post a paid job with a budget, verified agent workers apply and deliver, and the bu…
- MyTollBooth 99 x402 paid endpoints across 24 services on Base: compute, risk, scan, DeFi, AI, media, tax, compliance, a…
- Nano CSV service — Deduplicates up to 5,000 CSV records by exact composite string keys, preserving the first row, for 0.1 XNO…
- Nansen Nansen's onchain analytics sold per call, including prediction-market screeners and Token God Mode PnL lead…
- New x402 Listings Feed Feed of x402/L402 services newly listed on 402index.io within a caller-specified recency window (default 24…
- NIMATRON COT CFTC Commitment of Traders positioning: a one-call summary, a single market broken down by trader category,…
- Node Scorecard API Scored directory of Sentinel dVPN network nodes: composite score per node, sorted best-first, active nodes…
- NodeFlare Pay-per-request JSON-RPC on 23 EVM chains (including Robinhood Chain, Plasma, Ink and Zircuit) served from…
- Oblique Markets 67 paid routes for agents, among them award-flight search, legal entity (LEI) lookup, BNB payment preflight…
- Obol AI code generation via x402.
- Obol Base Network Status Base chain-head and RPC-agreement snapshot, cross-checked across two independent providers.
- OmniProvider Pay-per-call LLM chat and cited-brief API for agents: x402 on Base (fixed price, $0.006 to $0.008 USDC) and…
- On-Chain Activity Index 0-100 quantitative DeFi Protocol Activity Index computed from real public DefiLlama data (TVL trend, fee/vo…
- Onchain Safety (wick.pics) Token-safety verdicts across several chains: contract risk, liquidity and honeypot checks, a fresh-pool rug…
- OneSource Ethereum chain data over live RPC for agents (token and wallet balances, block height, contract introspecti…
- Open Rails Data Agent Seven pay-per-call x402 data endpoints on Celo mainnet for blocks, gas prices, wallet and token balances, t…
- openzoo OpenAI-compatible chat completions paid per request via x402 on Solana and Base, with no account or API key.
- Oromi Agent Services UK public-record lookups: Companies House search, company profiles and name checks, and Land Registry price…
- Otto AI x402 router with 76 paid routes, from SEC 13D/13G stake filings to fal.ai image and video generation, price…
- OyaPicks Cross-venue prediction market data for AI agents: 11 endpoints covering keyword market search, single-marke…
- page-read Fetches one public URL and returns clean markdown or text for $0.001 USDC on Base;
- PageWire Pay-per-call web reading for agents: page to clean Markdown with links ($0.01), page metadata with OpenGrap…
- panevin-x402-api Web content extraction and AI processing.
- PaperPilot CSV Preflight Returns structural checks for up to 32 KB of caller-supplied CSV text via POST at 0.005 native Circle USDC…
- PayAPI Market First marketplace for x402-powered APIs.
- PayPerByte Twelve pay-per-call USDC data feeds and oracles on Base mainnet: weather, earthquakes, CCTP v2 attestation-…
- Penny Press Original essays on freedom, economics and philosophy;
- Penny x402 utilities Small dev utilities per call: hash digests, base64, UUID, slug, URL parse, time, Nostr NIP-19 decode and ev…
- Pharos Atlas Network of 200 specialist sources with stored representations in English (en), Spanish (es), Simplified Chi…
- PLEXUS Intelligence API 163 pay-per-call x402 endpoints from a single provider: US federal regulatory data (EPA, OSHA, FEC, SEC ful…
- Pocket Network Agentic Portal 114 pay-per-call routes served over Pocket Network, including read-only JSON-RPC such as OP Mainnet, web se…
- Polybot Arb Intelligence Real-time cross-platform prediction market arb data (Polymarket + Kalshi + Myriad).
- Polymarket Liquidity API Real-time Polymarket liquidity data.
- Polymarket Scan API Automated Polymarket scanner detecting liquidity anomalies.
- Pool Slippage Sells a constant-product price-impact quote for a Uniswap V2 pool, computed from that pool's live reserves.
- PortsideLabs Places API Google Places API v1 proxy.
- Predge Polymarket data for agents over x402: whale trades of $10,000 or more (15-minute delay), wallet leaderboard…
- PreReason Financial context API.
- PricePlain Posted US hospital prices from CMS price-transparency machine-readable files, cleaned (Twin Cities, MN firs…
- Project Zero Cited Briefs Cited research briefs from the live web: the Research Brief endpoint searches, reads 3-6 sources and return…
- Public Tenders ES/EU Normalized search over public-sector tenders published in TED (EU official procurement notices), covering S…
- PulseNetwork Federated catalog of 950+ pay-per-call intelligence endpoints across 76 origins: token safety (8 EVM chains…
- PureSignal402 Prediction-market signals from Kalshi across crypto, macro, politics, weather, sports and tech: markets whe…
- QRCode.Pub Agent Tools Three pay-per-call GET endpoints on Cloudflare Workers: QR code image as PNG or SVG for any text or link ($…
- QuantOracle Deterministic quant finance calculators for agents: options, risk, portfolio, Monte Carlo, statistics, cryp…
- RailAudit Sells a liveness audit of an x402 payment rail: sends a real settlement probe and reports whether it settle…
- Recompete Radar Finds a recipient's US federal contract awards whose period of performance ends within a given window, sour…
- Regression Incoming Model-driven 2026 NFL preseason fantasy football rankings and draft boards.
- Reise-Agent Attest Ed25519-signed price attestation for travel offers (flights, hotels, ferries, cruises) with a plausibility…
- RelayShield Threat intelligence API with 32 pay-per-call x402 endpoints: phishing and malware URL scans, data-breach lo…
- RGX — Snap Router: task-to-tool selection over the merged x402 Bazaar and MCP Registry catalog (16k+ entries), on…
- ROGUE-NET Cited Research Returns a short research answer for one query, with its sources listed, over a plain GET;
- Rubric Protocol Post-quantum-signed (ML-DSA-65) AI decision attestations anchored to Hedera, plus signed agent spend statem…
- Rue Render API Renders a URL or raw HTML to PDF, PNG, or JPEG via headless Chromium, SSRF-guarded.
- RugGuard Pre-trade rug check for a token on Base or Solana: a 0 to 100 score, a verdict and structured flags, with a…
- Run402 Infrastructure for agents (Postgres databases, static hosting, serverless functions, image generation), unl…
- SafeRoute Supported-token Base swap preflights at 0.001 USDC and wallet-bound quotes at 0.01 USDC via x402;
- SAVER Verifier Source-backed factual claim verification with linked evidence for autonomous AI agents, 0.20 USDC per call…
- Saylor Watchdog Solana token intelligence: price/liquidity spread across two independent sources, security flags (mint/free…
- SchemaLock Structured JSON extraction from invoices, receipts, contracts, resumes, or raw text/HTML via a caller-suppl…
- Scout MCP Multi-source search across code, academic, social, community platforms.
- scrape402 Utility calls for agents: a web page as clean JSON or Markdown, PDF to text, structured extraction, weather…
- SCRYX Merchant Intelligence Returns structured public-commerce evidence for one merchant homepage with explicit unknowns;
- SCV — Smart Contract Verification Rug-pull/honeypot/security scoring for EVM contracts (mint, pause, blacklist, taxes, proxy, ownership) acro…
- Second Opinion Returns a structured critique of a claim, plan or draft, for an agent that wants its work checked.
- Sentinel x402-gated trust verification for autonomous agents.
- ShieldAPI Security intelligence for AI agents.
- SibFly Measured ground motion (subsidence or uplift, in mm per year) for a US address, from Sentinel-1 InSAR.
- SIBYL Crypto intelligence agent on Base.
- Signal Desk Five pay-per-call routes on Base: page render to Markdown, PNG or PDF in headless Chrome ($0.01), file host…
- SignalFuse Trading intelligence + x402 API gateway.
- SignalHarness.ai Publishes 330 production x402 API services for AI agents covering web and data processing, validation, AI u…
- SingIt Ask Pay-per-call LLM chat in OpenAI, Anthropic Messages and OpenAI Responses request shapes with one URL per mo…
- Sirenic French and European company data from official registries: company search and profiles by SIREN, establishm…
- Skill Audit Malicious-pattern detection for AI agent skills, plugins and prompts.
- SkillMint 51 AI skills across 7 categories (dev tools, creative design, research, writing, docs).
- Smart Event Scraper Aggregates events from Eventbrite, Meetup, AllEvents, District, EventsEye, and ConferenceAlerts into one st…
- Softbot Email Check Checks email address and domain deliverability signals without mailbox probing, $0.002 USDC per call on Bas…
- Softbot Reader Converts a public web page URL to clean markdown, $0.003 USDC per call on Base or Solana via x402.
- Softbot Token Check Returns a safe/caution/avoid verdict with reasons for a Solana token mint, $0.01 USDC per call on Base or S…
- Solana Token Risk Check Reports a Solana SPL or Token-2022 mint's mint and freeze authority, Metaplex metadata mutability, top-10 h…
- Solana Wallet Research Returns bounded finalized public-data reports for Solana wallet addresses for $0.01 USDC per call on Solana…
- SolSignal API Solana token safety scanner.
- SolSigs 20 pay-per-call Solana blockchain intelligence APIs: DEX prices, arbitrage scanner, wallet intelligence, to…
- Sourcey Startup Credits Review Human review of one startup-program submission against Sourcey's public evidence and Catalog admission rules;
- Spraay Gateway A broad pay-per-call gateway: OpenAI-compatible chat completions across many models, batch payments, swaps,…
- StableEnrich Google Maps, Places, Solar and Aerial View data served per call, 15 routes from $0.002 to $0.28 USDC on Bas…
- StableUpload Buy an upload slot for a file or a zipped static site and get an upload URL back, $0.005 USDC on Base or So…
- Stelar Digital Live crypto grid-trading telemetry (real P&L, not simulated), grid-parameter recommendations, market-regime…
- Stockfilm 217,000+ authentic vintage 8mm home movie clips (1930s-1980s) restored in 4K.
- Strale Trust layer for AI agents with 250+ independently tested business data and compliance capabilities: IBAN va…
- SwarmIO Cloud Six pay-per-call research primitives over x402 (USDC on Base, no signup — the paying wallet is the account)…
- Tanod Pay-per-call API and MCP server (https://tanod.dev/mcp) for document, PDF, web, on-chain and security tools…
- TapeOut CPU0 Report Returns pinned-block X Layer TapeOut factory, market fee and genesis processor state as JSON for 0.005 nati…
- TaskMarket Data API — Read-only TaskMarket bounty-market data for AI agents: list open tasks (rewards, deadlines, submission dema…
- Taste Wall Printables Mini Instant download of three printable wall-art PNGs after x402 payment of 16 USDC on Base mainnet.
- Telemost Telegram data for agents: recent messages from a public channel or group, keyword search across public chan…
- Textus Structured literary content for AI agents, including complete selected text units, metadata, characters, sc…
- The Bot Wire 57 primary-source data wires for AI agents: SEC EDGAR, Federal Register, federal court opinions, congressio…
- The Musebook Times Wire Structured events wire as JSON: timestamped, receipt-backed history of the musebook town (editions, token l…
- The Stall A large catalog of data calls behind one host, such as SEC ownership filings, address intelligence and secu…
- Tick Aggregator API Multi-source aggregated FX Best Bid/Ask from 3 institutional liquidity providers.
- TinyOps Automation Integration Preflight Inspects a public webpage for automation readiness: integration links, forms, robots policy, security heade…
- TokenGuard ERC-20 rug/safety scanner over public RPC on 6 chains (Base, Ethereum, Arbitrum, Optimism, Polygon, BSC): i…
- TokenSafe Sells a safety verdict for any Base ERC-20 token address: honeypot and non-transferable checks plus liquidi…
- Tollbooth 56 financial, tax, and legal calculators for AI agents (income tax, self-employment/estimated tax, capital…
- Tollex Robinhood Chain mainnet data for agents (blocks, transactions, logs, balances, USDG and stock tokens;
- Trench Lessons Solana meme coin research for trading bots: read-only heuristic flags for a mint (curve-skip PumpSwap pool,…
- TrollBridge 101 pay-per-call intel lanes for AI agents on Base and Solana ($0.005–$30, most at $0.02–$0.10, USDC via x4…
- true402 Pay-per-call agent tools: OpenAI-compatible LLM inference across providers, SEO audits, web extraction, lin…
- Truth Bear (GAUGE) 180+ official-source data signals for AI agents: US river/flood and streamflow (USGS/NOAA), air quality (EP…
- tx402.ai Agent-native LLM inference gateway.
- url2md PDFs and x402-tolled pages, returned as clean Markdown.
- US City Open-Data Compliance Network Multi-jurisdiction property compliance for AI agents ($0.01 USDC on Base): catalog https://x402-mcp.onrende…
- Useful Work tools Reads a public web page as text, checks up to 15 links on a page, or looks up DNS records (A, AAAA, CNAME,…
- UTA Trust API Agent trust verification as a paid x402 resource: validates one Agent Trust Card (ATC/1.0) with real Ed2551…
- Vega Article Summarizer Summarize articles and URLs into key points.
- Vega PDF Extractor Extract text from PDF files.
- Vega URL Extractor Extract clean text from any web page URL.
- Vend API Merchant Pay-per-call web intelligence settled in Nano (XNO), the feeless rail: URL-to-Markdown extraction, link che…
- Venice AI Official Venice AI client for x402 micropayments.
- Venture NL Open-Data Dutch open-government data: RDW vehicle registry, BAG addresses/buildings, postcode/geocoding, OV transit d…
- Venture Reader — Extracts one public web page to clean Markdown for LLM pipelines using Mozilla Readability and Turndown wit…
- Verdoc Deterministic AGENTS.md generator for public GitHub repositories: build and test commands quoted from the r…
- Vérif Entreprise FR Verifies a French company by SIREN from official open data (Annuaire des Entreprises, BODACC, ADEME) and re…
- VerifFR French company, EU VAT and address verification: INSEE SIRENE company search and SIRET profiles, VIES VAT v…
- VerifyPulse Email deliverability tools for agents: daily SPF, DKIM, DMARC, MX and MTA-STS monitoring with webhook alert…
- Veriton HTML→JSON — Metered HTML to structured JSON for agents (title/meta/links/headings/images);
- Vibe Springs Weather and environment data (forecast, air quality, marine, solar) alongside finance and blockchain calls.
- Video Download AI — Downloads authorized public media URLs as MP4 video or MP3 audio with duration-based pricing from $0.0005 p…
- ViewportWitness Checks public websites before deployment across phone portrait, phone landscape, and desktop with screensho…
- Vindex Vehicle-data API: VIN decode with factory warranty terms, recalls, known-issues/reliability, and US & Canad…
- Viraill Generative Engine Optimization (GEO) and Agentic Commerce Readiness APIs for AI agents and SaaS: `POST /v1/…
- Visibility AI Audit API AI-visibility and AEO audit for websites: agent-readiness scoring (llms.txt, schema, bot access, FAQ), gene…
- Visual API Screenshot and PDF capture API.
- Weather API Global weather data for AI agents.
- Web Page to Clean Markdown Fetches a public URL, strips nav/ads/scripts with Mozilla Readability, and returns clean Markdown plus titl…
- WebberSites x402 Data API 41 pay-per-call endpoints for AI agents: web scraping, document extraction, whole-site SEO audits, brand-ki…
- webcap Web capture API with seven pay-per-call routes: page screenshots, structured content extraction, SEO audits…
- WebExtract Web page to clean Markdown or fixed-schema JSON (product price, tables, article metadata), $0.002–$0.005 US…
- WebIntel Web lookups for agents: a page as clean Markdown, page metadata, sitemap, tech stack, DNS and domain enrich…
- WebSocket Session Manager API Stateful WebSocket session registry that proxies a connection to a target URL and scores each inbound frame…
- Wren Pre-sign Check Returns block, review or allow for a transaction or EIP-712 message before an agent signs, flagging unlimit…
- x402 AI API — zeroreader 29 Cloudflare Workers AI models (LLM, Embeddings, Image Generation, Audio, Translation) via x402.
- x402 API Network Small utility calls for agents: DNS and WHOIS lookups, IP info, QR codes, URL metadata and HTML to Markdown…
- x402 Atlas Web Search Web search, bulk search, deep research and page-to-markdown reading for agents, $0.01–$0.108 USDC per call…
- x402 Bounty Radar Provides a $0.01 USDC Base x402 endpoint advertised for ranked developer-bounty discovery with scam filteri…
- x402 Crypto Research API — Generates current, source-linked cryptocurrency ecosystem research reports for 0.01 USDC per POST request o…
- x402 Entity-ID Resolver Resolves a company or crypto name or ticker into ranked entities with verified canonical IDs across registr…
- x402 Filing Digest Returns a structured digest of SEC EDGAR filings;
- x402 Ping / UUID / Time Cheap x402 test utilities: ping returns pong+server time, uuid returns random UUID v4 values (`n=1..100`),…
- x402 Pulse Live BTC/ETH/SOL prices and the Crypto Fear & Greed Index in a single GET call for $0.002 USDC on Base.
- x402 Receipt Verifier Audits NEXUS's own x402 payment logs against its own delivery logs and issues a signed HMAC receipt proving…
- x402-api Pay-per-call DeFi & crypto data.
- x402-ping Cheap Base USDC exact-x402 health/smoke ping: unpaid GET /premium returns HTTP 402 for 0.05 USDC on Base (e…
- x402-seller Token rug/honeypot scoring combining GoPlus static analysis with live Honeypot.is sell simulation, liquidit…
- x402engine 74 pay-per-call API tools: 44 LLMs, image/video generation, crypto data, web search, code execution, TTS, t…
- x402nic by easyDNS Registers domain names and provisions them into easyDNS accounts using x402 v2 USDC payments on Base, with…
- x402risk — Base token scam/safety check, pre-trade sellability/honeypot/tax simulation, pay-to address screen, and an…
- Xquik Real-time X (Twitter) data API.
- zaref South African reference data as cited JSON: fuel prices, repo and prime rates, CPI, tax tables, VAT, tolls,…
- ZARONIA Verify Coupon verification for South African floating-rate notes and money-market instruments, plus index lookups.
- Zugabot Code Agent AI developer services via x402: code review ($0.25), bug fix ($0.25), security audit ($0.50), architecture…
- Zugabot Image Generation Text-to-image generation via x402: FLUX Schnell ($0.15) or FLUX 2 Pro ($0.50), returns image URL plus dimen…