# SignalHarness ERC-1155 Transfer Decode

> SignalHarness ERC-1155 Transfer Decode is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-16).

Decodes and parses ERC-1155 token transfer data (calldata, logs, or raw transaction input) into human-readable structured form

## Facts

- Endpoint: POST https://signalharness.ai/api/agent/services/erc1155_transfer_decode/invoke
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalharness-erc-1155-transfer-decode-cf18af9e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8ZksJm7Fgi1vsy8u68v0-

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability signalharness-erc-1155-transfer-decode-cf18af9e -d '<json body>'
```

Example prompt: Decode this ERC-1155 transfer calldata for me and tell me what token IDs, amounts, and addresses are involved: 0xf242432a0000000000000000000000001234...

## When to prefer this

Choose this endpoint when you need to programmatically decode ERC-1155 multi-token standard transfer calldata or logs into structured, readable fields — especially when building blockchain analytics pipelines, transaction auditing tools, wallet UIs, or agent workflows that need to interpret on-chain ERC-1155 activity without running a full node or ABI decoder locally. It is particularly useful when the raw hex data is caller-supplied and you need a quick, paid-per-call interpretation with a verifiable receipt.

## Known failure modes

- Malformed or truncated calldata returns a decode error or populated warnings array
- Input string too short (below minLength 2) returns a validation error
- Input exceeds 65536 characters and is rejected
- Calldata that is not ERC-1155 transfer format may produce incomplete or warning-flagged results
- Network or payment failure returns a non-succeeded status

## How this service works

Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.

## Output

Returns a decoded ERC-1155 transfer object containing human-readable fields (token IDs, amounts, addresses, operator, etc.) extracted from the raw input, along with any warnings about the data, an evidence scope label indicating the data came from caller-supplied input, and a full receipt including payment ID, execution metadata, and a SHA-256 result hash for verification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "erc1155_transfer_request": {
   "type": "string",
   "maxLength": 65536,
   "minLength": 2
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "replay": false,
  "result": {
   "warnings": [
    "Decoding does not prove balances or transfer success."
   ],
   "service_id": "erc1155_transfer_decode",
   "evidence_scope": "caller_supplied_data",
   "decoded_erc1155_transfer": "{\"args\":[\"0x0000000000000000000000000000000000000001\",\"0x0000000000000000000000000000000000000002\",\"1\",\"2\",\"0x\"],\"kind\":\"calldata\",\"operation\":\"safeTransferFrom\"}"
  },
  "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": "erc1155_transfer_decode",
   "executionId": "example-execution",
   "startedAtMs": 0,
   "amountAtomic": "10000",
   "resultSha256": "82cf79cc70cb2a0098a5c1e4539864c942f1ac79b8be2220842ad61c92a12d19",
   "serviceVersion": "1.0.0",
   "settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
  },
  "artifacts": [],
  "requestId": "example-request",
  "executionId": "example-execution"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signalharness-erc-1155-transfer-decode-cf18af9e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from signalharness.ai](https://www.zero.xyz/host/signalharness.ai/llms.txt)