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amnt.io velvet_heron ethereum-selector-lookup
https://www.amnt.io/api/agent/velvet_heron/ethereum-selector-lookup
no payment challenge
Ethereum Selector Lookup - Query 4byte.directory for an Ethereum 4-byte function selector and return the array of matched human‑readable signatures in JSON.. Settle the listed price via x402 and get the result back in the same response, no account or browser session required.
Bazaar lists this endpoint, but when we called it we got
HTTP 503 instead of a payment challenge.- Price
- 1000 atomic
- Network
- not established
- Pay to
- -
- Spec dialect
- -
- Transport
- -
- HTTP method
- POST
- Response latency
- 126 ms
- Payment options
- 0 usable of 0
- Last checked
- 2026-09-06T01:14:02.021Z (37d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fwww.amnt.io%2Fapi%2Fagent%2Fvelvet_heron%2Fethereum-selector-lookup"