# SignalHarness AI Search Result Synthesis Audit

> SignalHarness AI Search Result Synthesis Audit is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Audits and analyzes caller-supplied AI search result synthesis data, returning structured analysis with warnings and evidence scope metadata.

## Facts

- Endpoint: POST https://signalharness.ai/api/agent/services/ai_search_result_synthesis_audit/invoke
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalharness-ai-search-result-synthesis-audit-f81a6be9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_r5oDPxqLLgd5P0GRtJqsV

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-ai-search-result-synthesis-audit-f81a6be9 -d '<json body>'
```

Example prompt: Can you audit this AI search result synthesis JSON for me and flag any warnings or issues with the evidence scope? Here's the data: {"query":"best Python async frameworks","synthesized_answer":"FastAPI and asyncio are top choices","sources":["https://example.com/article1"]}

## When to prefer this

Choose this endpoint when you need to programmatically audit or validate AI-synthesized search results before acting on or publishing them, especially in agentic pipelines where hallucination risk or evidence quality matters. Prefer this over generic validation endpoints when your input is specifically AI search synthesis output and you need structured warnings plus a cryptographic receipt for auditability.

## Known failure modes

- Invalid or malformed request_json string (too short, not valid JSON-like content)
- Input exceeds 65536 character limit
- Payment failure or insufficient USDC balance
- Service returns warnings that caller-supplied data could not be independently verified
- Execution timeout resulting in non-succeeded status
- Network or blockchain settlement errors reflected in 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 structured JSON object containing: an analysis_json field with the audit findings, a list of warnings (e.g. data reliability caveats), an evidence_scope label (e.g. 'caller_supplied_data'), the service_id, execution status, and a full receipt with payment details, latency, and a SHA-256 hash of the result for verification.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "replay": false,
  "result": {
   "warnings": [
    "Verify the caller-supplied data before relying on this result."
   ],
   "service_id": "ai_search_result_synthesis_audit",
   "analysis_json": "{\"example\":\"schema-valid caller-supplied data\"}",
   "evidence_scope": "caller_supplied_data"
  },
  "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": "ai_search_result_synthesis_audit",
   "executionId": "example-execution",
   "startedAtMs": 0,
   "amountAtomic": "30000",
   "resultSha256": "6c606c9e5b5074cf020bbf7b1fe6f06ca0d33bfe575ecf1d8bfdc904d71f8be6",
   "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-ai-search-result-synthesis-audit-f81a6be9/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)