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NumberIntel

https://numberintel.dev/v1/carrier
● healthy a2a-agent

US phone carrier and line-type lookups, bulk list scrubbing, and x402 settlement attestation, paid per call via x402 (USDC on Base). See /llms.txt and /openapi.json.

Category
a2a-agent
Chains
base
Price
$0.0200 USDC / call

Quality grade

How grading works
C+ 60.0 / 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 0.0 / 40
Payment address on record, not yet queried on-chain
Owner verified 0.0 / 3
Nobody has claimed this listing yet
Endpoint last checked 7 h 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 -X POST https://numberintel.dev/v1/carrier
/.well-known/x402.json
https://numberintel.dev/.well-known/x402

Listed in

Directories this entry was found in.

a2a x402