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httpcdpthirdweb
httpcdpthirdwebagent402.tools
Resolve a 4-byte function selector or a 32-byte event topic hash to its known human-readable Solidity signatures, via the openchain.xyz signature database with 4byte.directory as fallback. Unknown selectors return {found:false} with an empty list, not an error.
Resource URL
https://agent402.tools/api/selector-lookup
Payment options
exactBase (8453)
$0.002 USDC
Max amount
- Pay to
- 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
- Timeout
- 300s
exactPolygon (137)
$0.002 USDC
Max amount
- Pay to
- 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
- Timeout
- 300s
exactArbitrum (42161)
$0.002 USDC
Max amount
- Pay to
- 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
- Timeout
- 300s
exactEVM 143
$0.002 USDC
Max amount
- Pay to
- 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
- Timeout
- 300s
exactEVM 43114
$0.002 USDC
Max amount
- Pay to
- 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
- Timeout
- 300s
exactEVM 1329
$0.002 USDC
Max amount
- Pay to
- 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
- Timeout
- 300s
exactEVM 10
$0.003 USDC
Max amount
- Pay to
- 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
- Timeout
- 300s
exactEVM 4663
$0.002 USDC
Max amount
- Pay to
- 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
- Timeout
- 300s
exactEVM 42220
$0.002 USDC
Max amount
- Pay to
- 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
- Timeout
- 300s
uptoBase (8453)
$0.002 USDC
Max amount
- Pay to
- 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
- Timeout
- 300s
exactSolana
$0.002 USDC
Max amount
- Pay to
- J7aN3PLJnTCF5qpEnvJHJsnCjcGuqC2rYtEM8Gv3xwg
- Timeout
- 300s
exactalgorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73k
$0.002 USDC
Max amount
- Pay to
- C7IIHG7SPLPZ5H7ZT6HW3UV2OQMQQE6Y2HBNGZXSLRJULE42BEE2OY2XIE
- Timeout
- 300s
Tags
webtoolsagentsx402cryptoselector4bytesignatureevent
For agents
Prompt snippet for AI agents
Find and pay for this x402 resource: URL: https://agent402.tools/api/selector-lookup Type: http Sources: cdp, thirdweb