OSF — Open Source Filings · Verifiable public-data infrastructure for autonomous agents
https://api.osf-master-server.com
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OSF is a live, API-first marketplace of verifiable, provenance-stamped public-domain data — built for autonomous agents that pay per record over x402 micropayments on Base. A paid MCP server, listed in the official MCP Registry, and discoverable on the Coinbase CDP Bazaar.
Category
search
Chains
base, eip155:8453
Price
$0.0400 USDC / call
How to call
cURL · x402-fetch / x402-axios will auto-handle 402
curl -X POST https://api.osf-master-server.com/.well-known/x402.json
https://api.osf-master-server.com/.well-known/x402