Pay-per-call data APIs and MCP tools for autonomous agents. No account, no subscription, no API key — your agent pays per request in USDC and is served.
Normalized SEC EDGAR fundamentals exposed as MCP tools: resolve tickers, browse filings, read normalized financial metrics with the XBRL tag that resolved each figure, and compare one metric across filers with fiscal periods aligned.
Normalized company filings and fundamentals data: divergent upstream accounting tags are resolved to a stable metric vocabulary, fiscal periods are aligned across filers with different year ends, margins and period-over-period changes are computed, and the tag that resolved each figure is reported back, so a consumer gets directly comparable numbers without writing per-filer parsing code.
Every paid endpoint answers an unpaid request with HTTP 402 and a
quote: the amount, the token, and the address to pay. A client that speaks
x402 signs that quote off-chain and retries; the
response arrives in the same round trip. There is nothing to sign up for, and
you are charged only when a request actually succeeds.
The machine-readable index — every service, every tool, every price — is free
at https://api.toolfeeds.com/.well-known/x402.
MCP tools/list is free too, so an agent can discover the catalogue
before spending anything.