● down
a2a-agent
Enrich leads and business contacts: agentic lead-session, reverse phone, person search, websearch, B2B lead search. x402 USDC + free trial + MCP.
Category
a2a-agent
Chains
base, eip155:42161, polygon
Price
$0.1000 USDC / call
Quality grade
How grading works
D
20.0 / 100
capped at D while down
Availability
0.0 / 40
Endpoint did not respond
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 10 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 -sS -i -X GET https://411data.io/api/v1/enrich/email # expect HTTP 402 Payment Required (about 0.1 USDC/call)/.well-known/x402.json
https://411data.io/.well-known/x402
Listed in
Directories this entry was found in.
a2a