Excelexi

A human read this entry. That is the one thing true of everything on the list. Beyond that: nothing. We hold no dated receipt for a knock on this one and we will not backfill a date we cannot show. It is listed because a human read it, and that is all this page will tell you. None of it is a delivery test. We have not paid for this and graded what came back, so read it as "we checked what is stated above," never as "this is worth the money."

Technical-indicator and market-analysis API for trading agents: 73 indicators and 24 derived signals across 100 crypto markets, plus screening, analytics snapshots/history, and a natural-language endpoint that compiles a plain sentence into a deterministic query before executing it. Every returned value carries provenance — which bars were used, whether the indicator's warm-up period was satisfied, the data's age, and the upstream source — so a caller can verify freshness before acting on it. Example: `GET /api/v1/technical-analysis?symbol=BTCUSDT&interval=1h`. $0.00002-$0.0005 USDC on Base mainnet via x402 v2 (EIP-3009), 9 payable endpoints, no API key and no signup. ([OpenAPI](https://api.excelexi.com/openapi.json)) ([Discovery](https://api.excelexi.com/.well-known/x402)) ([Docs](https://excelexi.com/for-agents))