X402 Nexus — agent-payable data catalog
https://api.genesistokenlabs.com/v1/onchain/feed
● healthy
a2a-agent
135 agent-payable data endpoints over x402. USDC settlement on Base.
Category
a2a-agent
Chains
base, polygon, ethereum, arbitrum, optimism, eip155:43114
Price
$0.0050 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
0 distinct payers, 0 USDC transfers in the last 30 days
Owner verified
0.0 / 3
Nobody has claimed this listing yet
Endpoint last checked 19 h ago.
On-chain activity last read 46 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://api.genesistokenlabs.com/v1/onchain/feed # expect HTTP 402 Payment Required (about 0.005 USDC/call)/.well-known/x402.json
https://api.genesistokenlabs.com/.well-known/x402
Listed in
Directories this entry was found in.
a2a