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x402 Supply

Hosts metered HTTP endpoints that return market data, token risk grades and page text, settled per call in USDC.
At a glanceswept Oct 24, 2026

not read yet

Use

For
AI agent builders who want pay-per-call API tools without accounts or API keys.
Runs as
API
Used for
  • Check a Base token for owner admin powers
  • Pull current US Treasury par yield curve data
  • Read a public company's recent SEC filings
Worth knowingcomputed from what we read · each with its source
Your datawhat they publish, each line with its page · read Oct 25, 2026

These are x402 Supply's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 25, 2026
  • MCP servercom.x402supply/chess-evalverified in the MCP registry
  • Stateanswers, 2 toolschecked 2026-10-25
  • Address to connectchess-eval.x402supply.com/mcp

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Securityby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Three tools from the Atlas for the job you describe, each with what fits and what does not.

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Questions this page answers
  • What is x402 Supply?

    Hosts metered HTTP endpoints that return market data, token risk grades and page text, settled per call in USDC. It is listed in the Atlas under Security.

  • Who is x402 Supply for?

    AI agent builders who want pay-per-call API tools without accounts or API keys.

  • Do people use x402 Supply?

    Little sign of use.

  • Is x402 Supply safe?

    We do not audit vendors. What x402 Supply publishes, read 2026-10-25: a trust center.

  • What are alternatives to x402 Supply?

    In Security, by use: Tanod, PaidHandshake Exchange, Ogenalabs, Aamio, Cloudflare, Lumo by Proton.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk