# SignalHarness CAIP-10 Account Comparison

> SignalHarness CAIP-10 Account Comparison is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Compares two or more CAIP-10 blockchain account identifiers and returns a structured analysis of their similarities, differences, and warnings

## Facts

- Endpoint: POST https://signalharness.ai/api/agent/services/caip10_compare/invoke
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalharness-caip-10-account-comparison-6c8cbce8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__SiDsgaW05cWx1a1SrdQW

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-caip-10-account-comparison-6c8cbce8 -d '<json body>'
```

Example prompt: Can you compare these two CAIP-10 accounts for me — 'eip155:1:0xAbC123...' and 'eip155:8453:0xAbC123...' — and tell me if they refer to the same underlying address or if there are any differences I should know about?

## When to prefer this

Choose this endpoint when you need a structured, auditable comparison of CAIP-10 formatted blockchain account identifiers — especially across chains — and require a receipt with cryptographic proof of the result. Prefer it over manual string comparison when warnings and evidence scope matter, or when you need a tamper-evident record of the comparison for compliance or audit purposes.

## Known failure modes

- Malformed CAIP-10 strings cause failed parsing and an error result
- Input string below 2 characters or exceeding 65536 characters returns a validation error
- Unsupported chain namespaces may trigger warnings or inconclusive comparisons
- Payment failure (x402) results in the call not being executed
- Network or settlement errors may produce a failed status in the receipt

## 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 JSON object containing: a comparison result string summarizing the relationship between the supplied CAIP-10 accounts, a list of warnings (if any issues were found), the evidence scope indicating the data source used, and a full receipt with payment confirmation, latency metrics, request/execution IDs, and a SHA-256 hash of the result for integrity verification.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "replay": false,
  "result": {
   "warnings": [
    "Equality is syntactic and does not link accounts across chains."
   ],
   "service_id": "caip10_compare",
   "evidence_scope": "caller_supplied_data",
   "account_comparison": "{\"equal\":true,\"left\":{\"address\":\"0x0000000000000000000000000000000000000001\",\"caip10\":\"eip155:8453:0x0000000000000000000000000000000000000001\",\"namespace\":\"eip155\",\"reference\":\"8453\"},\"right\":{\"address\":\"0x0000000000000000000000000000000000000001\",\"caip10\":\"eip155:8453:0x0000000000000000000000000000000000000001\",\"namespace\":\"eip155\",\"reference\":\"8453\"},\"same_chain\":true}"
  },
  "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": "caip10_compare",
   "executionId": "example-execution",
   "startedAtMs": 0,
   "amountAtomic": "5000",
   "resultSha256": "d44bfe68f8e7576826c69222ae71a5e9ed968e45d96cbc92580062675f190c7c",
   "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-caip-10-account-comparison-6c8cbce8/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)