Truth Bear (GAUGE)
https://api.truthbear.co/.well-known/x402.json Our Verdict
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."
180+ official-source data signals for AI agents: US river/flood and streamflow (USGS/NOAA), air quality (EPA), drought, power grid (EIA), shipping (IMF PortWatch), and SEC EDGAR filings. Each paid record ships a canonical sha256 record_hash the caller recomputes offline; readings are stated against the source agency's own published thresholds where one exists. $0.005–$0.09 USDC on Base and Solana, no API key, no signup; a query with no data returns 422 and is not billed. Screening-level, not decision-grade. Example: `GET /gauge/air`. ([llms.txt](https://api.truthbear.co/llms.txt)) ([Sample](https://api.truthbear.co/gauge/sample)) ([MCP](https://www.npmjs.com/package/mcp-gauge-x402))
Rater Grades
No independent rater grade published for this entry yet. What we publish is above: who read it, and whether its endpoint answered on a date we can show. Neither is a measurement of what it returns after payment.
Embed Your Listing
