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SignalHarness ABI Result Decoder
x402
SignalHarness ABI Result Decoder is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Decodes raw ABI-encoded Ethereum smart contract function call results into human-readable structured data
Price / call$0.01
Success—
StatusUnknown
How this service works
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Output
Returns a structured JSON object containing the decoded function result as a human-readable value, any warnings encountered during decoding, the evidence scope indicating data provenance (caller_supplied_data), and the service ID. Also includes a full receipt with payment details, request/execution IDs, latency metrics, result SHA256 hash, and settlement reference on the Base network.
Example use cases
Decode DeFi protocol return data
“I called a Uniswap V3 pool contract and got back this ABI-encoded response — can you decode it so I can see the actual token amounts and tick values? Here's the raw output: 0x000000000000000000000000000000000000000000000000002386f26fc10000”
Debug failed contract interaction
“My Solidity contract call returned this hex blob and I don't know what values are inside it — please decode this ABI result for me so I can figure out what the contract actually returned: 0x0000000000000000000000000000000000000000000000000000000000000001”
Automate smart contract output parsing
“As part of my agent workflow, every time I query an on-chain NFT contract I get back ABI-encoded data that I need parsed into readable fields — decode this result for me: 0x00000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000080”
Technical details
Endpoint
POSThttps://signalharness.ai/api/agent/services/abi_result_decode/invokeWhen to prefer
Choose this endpoint when you need to programmatically decode raw ABI-encoded Ethereum smart contract return values within an agent workflow, especially when you want a paid, auditable service with cryptographic receipts and SHA256 result verification. Prefer this over manual ABI parsing libraries when you need a hosted, payment-gated API with traceability on the Base network.
Side effects
- Malformed or invalid ABI-encoded input string returns a decoding error
- Input exceeds 65536 character maximum length
- Input shorter than 2 characters minimum
- Ambiguous ABI type information may produce warnings rather than a clean decode
- Payment failure on Base network prevents execution
- Unsupported ABI encoding variants may not decode correctly
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| abi_result_decode_request | string |
Output
Schema · Response
{
"type": "json",
"example": {
"replay": false,
"result": {
"warnings": [
"Decoded values do not prove that a call occurred or succeeded."
],
"service_id": "abi_result_decode",
"evidence_scope": "caller_supplied_data",
"decoded_function_result": "\"5\""
},
"status": "succeeded",
"receipt": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"usage": [],
"status": "succeeded",
"network": "eip155:8453",
"artifacts": [],
"endedAtMs": 0,
"latencyMs": 0,
"paymentId": "example-payment",
"receiptId": "example-receipt",
"requestId": "example-request",
"serviceId": "abi_result_decode",
"executionId": "example-execution",
"startedAtMs": 0,
"amountAtomic": "10000",
"resultSha256": "7806f0ca2eb9edbb73a92108c17d49e803730afacbcdf2e494c34a627084a74b",
"serviceVersion": "1.0.0",
"settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
},
"artifacts": [],
"requestId": "example-request",
"executionId": "example-execution"
}
}Tags
x402
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