Verified catalog reliability lookup

https://verified-catalog-lookup.withgrokbot.workers.dev/v1/lookup/paid

● healthy search

Is an x402 endpoint reliable for task X at price <= Y? Facts from our own paid calls: receipts with settlement tx, delivered yes/no and a known-answer pass/fail. Pricing: 5 free lookups per client per UTC day, then HTTP 402 with an x402 payment requirement of $0.02 USDC on Base per lookup. Payment buys query access only. It never changes results, sort order, listings, check results or known-ans...

Quality grade

How grading works

B 70.9 / 100

Availability 40.0 / 40

Endpoint responded (HTTP 402)

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 7.9 / 40

3 distinct payers, 5 USDC transfers in the last 30 days

Owner verified 3.0 / 3

Operator proved control of this domain

Endpoint last checked 7 h ago. On-chain activity last read 10 d ago. Availability and on-chain demand are both re-probed daily; the grade updates automatically on the next pass.

Paid endpoints

4 resource(s) advertised by this origin.

https://verified-catalog-lookup.withgrokbot.workers.dev/mcp

https://verified-catalog-lookup.withgrokbot.workers.dev/v1/lookup

https://verified-catalog-lookup.withgrokbot.workers.dev/v1/lookup/paid

https://verified-catalog-lookup.withgrokbot.workers.dev/v1/tasks

How to call

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

curl -X POST https://verified-catalog-lookup.withgrokbot.workers.dev/mcp

/.well-known/x402.json

https://verified-catalog-lookup.withgrokbot.workers.dev/.well-known/x402

Listed in

Directories this entry was found in.

x402scan mcp x402