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x402 endpoint verifier (is this seller sellable?)

https://agent-context-api-proxy.agent-context-proxy.workers.dev/v1/x402-verify
● degraded developer-tools

Probe any x402 endpoint from the buyer side: unpaid request, decode the 402 challenge (payTo, price, scheme, x402 version) and get a verdict: sellable / no_gate / plain_402 / error. Never pays. 0.005 USDC per check via x402 on Base.

Category
developer-tools
Chains
base
Price
$0.0050 USDC / call

Quality grade

How grading works
C 46.7 / 100
Availability 18.0 / 40
Reachable but returned HTTP 404
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 8.7 / 40
3 distinct payers, 9 USDC transfers in the last 30 days
Owner verified 0.0 / 3
Nobody has claimed this listing yet
Endpoint last checked 6 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

8 resource(s) advertised by this origin.

POST https://agent-context-api-proxy.agent-context-proxy.workers.dev/v1/context-preflight
POST https://agent-context-api-proxy.agent-context-proxy.workers.dev/v1/bounty-radar
POST https://agent-context-api-proxy.agent-context-proxy.workers.dev/v1/payanagent-health
GET https://agent-context-api-proxy.agent-context-proxy.workers.dev/v1/base-market-pulse
POST https://agent-context-api-proxy.agent-context-proxy.workers.dev/v1/agent-work-brief
POST https://agent-context-api-proxy.agent-context-proxy.workers.dev/v1/read-page
POST https://agent-context-api-proxy.agent-context-proxy.workers.dev/v1/x402-verify
GET https://agent-context-api-proxy.agent-context-proxy.workers.dev/v1/ip-intel

How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -X POST https://agent-context-api-proxy.agent-context-proxy.workers.dev/v1/context-preflight
/.well-known/x402.json
https://agent-context-api-proxy.agent-context-proxy.workers.dev/.well-known/x402

Listed in

Directories this entry was found in.

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