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AgentResolver ABI Decode
x402
AgentResolver ABI Decode is a paid API for AI agents from agentresolver.vercel.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-17).
Decodes ABI-encoded hex data into structured values given an array of Solidity type strings
Price / call$0.005
Success—
StatusUnknown
How this service works
Verify an x402 endpoint before paying: live payTo, USDC quote, network, asset, resource binding, TLS and endpoint safety for $0.001 on Base or Solana.
Output
A JSON object containing the decoded values corresponding to each Solidity type provided, mapping the raw ABI-encoded hex into their native representations such as addresses, integers, booleans, bytes, and tuples.
Example use cases
Parse smart contract calldata
“I have this hex calldata from an Ethereum transaction: `0x0000000000000000000000001234...` — can you decode it using types `["address","uint256","bool"]` so I can see what arguments were passed?”
Decode on-chain event log data
“I captured this ABI-encoded log data `0xabcdef...` from a Transfer event and the indexed types are `["address","address","uint256"]` — decode it for me so I can see the sender, recipient, and amount.”
Inspect contract return value
“A smart contract returned this hex blob `0x00000000000000000000000000000000000000000000000000000000000003e8` and I know it's a `["uint256"]` — can you decode it to get the actual number?”
Technical details
Endpoint
POSThttps://agentresolver.vercel.app/api/abi-decodeWhen to prefer
Choose this endpoint when you need to decode raw ABI-encoded hex data from EVM-compatible smart contract calls, events, or return values and you know the Solidity type signatures. It is useful for inspecting on-chain transaction data, parsing contract return values, or decoding event logs without running a full Ethereum node or Web3 library locally.
Side effects
- Invalid hex string (not 0x-prefixed or odd-length) returns a decode error
- Mismatched types array and encoded data structure causes decode failure
- Hex data exceeds 262146 character limit returns validation error
- Types array exceeds 32 items or contains empty strings returns validation error
- Malformed Solidity type string causes parsing error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| data | string | |
| types | array |
Output
Schema · Response
{
"type": "json",
"example": {}
}Tags
x402
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