402registry

● healthy model-context-protocol-mcp

Does an AI crawler see your site? Free registry lookup, x402 pricing; checks paid in USDC on Base.

Paid verification

No sponsored paid call yet.

Pay this endpoint once from your own wallet (Base USDC, up to $1.00) and we call it and record what came back. Your wallet pays the listed recipient directly; Agent Tools never holds funds. Sponsored checks prove delivery; they do not count as demand.

Quality grade

How grading works

B+ 80.6 / 100

Availability 40.0 / 40

Endpoint responded (HTTP 200)

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 20.6 / 40

18 distinct payers, 598 USDC transfers in the last 30 days

Owner verified 0.0 / 3

Nobody has claimed this listing yet

Endpoint last checked 4 h ago. On-chain activity last read 2 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -sS -i -X GET https://402registry.com/buy/one  # expect HTTP 402 Payment Required (about 0.01 USDC/call)

MCP endpoint

https://402registry.com/mcp

/.well-known/x402.json

https://402registry.com/.well-known/x402

Listed in

Directories this entry was found in.

mcp x402 a2a