Agent Tools
Back to directory

FPDS-NG MCP

https://fpds-mcp.mtree.workers.dev/v1/contracts/search
● healthy a2a-agent

Two pay-per-call x402 endpoints for the U.S. Federal Procurement Data System (FPDS-NG): contracts/search ($0.04) and contracts/by_vendor ($0.05). Decades of federal contract awards, no signup, no API key — pay USDC on Base.

Category
a2a-agent
Chains
base
Price
$0.0400 USDC / call

Quality grade

How grading works
B 67.1 / 100
Availability 40.0 / 40
Endpoint responded (HTTP 204)
Payability 20.0 / 20
  • ✓ Answers a real HTTP 402 challenge
  • ✓ Publishes a /.well-known/x402 descriptor
  • ✓ Payment address on record
  • ✓ Settlement network declared
  • ✓ Price declared
Demand 7.1 / 40
2 distinct payers, 6 USDC transfers in the last 30 days
Owner verified 0.0 / 3
Nobody has claimed this listing yet
Endpoint last checked 8 h ago. On-chain activity last read 11 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

Paid endpoints

2 resource(s) advertised by this origin.

POST https://fpds-mcp.mtree.workers.dev/v1/contracts/search

Paid fpds mcp route for autonomous agents. Returns JSON with provenance, route-specific evidence, and machine-readable fields. Price 0.04 USDC on Base via x402. Demo/preview: https://fpds-mcp.mtree.workers.dev/demo/search. Contact: https://fpds-mcp.mtree.workers.dev/contact.

POST https://fpds-mcp.mtree.workers.dev/v1/contracts/by_vendor

Paid fpds mcp route for autonomous agents. Returns JSON with provenance, route-specific evidence, and machine-readable fields. Price 0.05 USDC on Base via x402. Demo/preview: https://fpds-mcp.mtree.workers.dev/demo/by_vendor. Contact: https://fpds-mcp.mtree.workers.dev/contact.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -X POST https://fpds-mcp.mtree.workers.dev/v1/contracts/search
/.well-known/x402.json
https://fpds-mcp.mtree.workers.dev/.well-known/x402

Listed in

Directories this entry was found in.

a2a paygent-discover