Crypto Microdata for Agents
What am I about to sign? Pre-sign calldata decoder for Base: data=0x.. (selector+args) [&to=0x.. token/contract for symbol+decimals] or hash=0x.. (decode an existing tx). Resolves the 4-byte selector (builtin + openchain + 4byte, collision-checked by ABI round-trip), returns function signature, typed args, plain-English summary, risk none|low|medium|high, flags (unlimited_approval, unknown_spender, approve_all_nfts, offchain_permit, permit2_allowance, batched_calls, inner_approval, eip3009_x402_settlement) and verdict SAFE_TO_SIGN|CAUTION|DANGER. Multicall/aggregate3 inner calls are decoded too. When to call: before an agent signs any tx or approval it did not build itself, or to explain an unknown tx input. 2.5x cheaper than $0.005 hash/keccak utilities and tells you what the bytes do. 4xx never charged.
Resource URL
https://kr-x402-mvp.kgy5612.workers.dev/crypto/decode-calldata
Payment options
$0.002 USDC
Max amount
- Pay to
- 0xe4be4d0bd82d8e68203deff81f79ede0529f2617
- Timeout
- 300s
Tags
For agents
Prompt snippet for AI agents
Find and pay for this x402 resource: URL: https://kr-x402-mvp.kgy5612.workers.dev/crypto/decode-calldata Type: http Sources: payai