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Decode a 4-byte function selector or calldata into human-readable Solidity funct...

https://api.x402node.dev/chain/sig-decode

Overview

Decode a 4-byte function selector or calldata into human-readable Solidity function signatures via openchain - reverses on-chain selectors that LLMs cannot know. function selector, 4byte decode, sig decode, calldata decode, method id, selector lookup

Protocol x402
Price —
Payment Asset USD Coin
Payment Network eip155:8453
Category uncategorized
Provider x402node
Source bazaar
Indexed 2026-06-12 07:15:29

Health

Status healthy
Latency (p50) 436ms
Uptime (30d) 100.0%
Reliability Score 95/100
Last Checked 2026-10-18 08:18:33
Last Healthy 2026-10-18 08:18:33
Consecutive Failures 0

x402 Payment Validation

Payment Requirements Valid
Asset Verified Known USDC
Facilitator —

Recent Health Checks

Time Status HTTP Latency Error
2026-10-18 08:18:33 healthy 402 926ms
2026-10-17 23:35:54 healthy 402 444ms
2026-10-17 12:37:18 healthy 402 430ms
2026-10-17 02:47:38 healthy 402 438ms
2026-10-16 14:09:19 healthy 402 433ms
2026-10-16 04:32:40 healthy 402 436ms