# SignalHarness Search Result Quality Report

> SignalHarness Search Result Quality Report is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-13).

Analyzes and reports on the quality of search results based on caller-supplied data, returning structured analysis with warnings and evidence scope.

## Facts

- Endpoint: POST https://signalharness.ai/api/agent/services/search_result_quality_report/invoke
- Price: $0.025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalharness-search-result-quality-report-f24ad299
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eBiAHKJHqyJESEtVspsnc

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-search-result-quality-report-f24ad299 -d '<json body>'
```

Example prompt: Can you run a quality report on these search results I got back — I want to know if they look relevant and trustworthy before I use them downstream? Here's the result JSON: {"results":[{"title":"Best running shoes 2024","url":"https://example.com","snippet":"Top picks..."}]}.

## When to prefer this

Choose this endpoint when you need a structured, auditable quality assessment of search results before using them in a downstream pipeline. It is particularly useful for agents that need to validate search output from third-party or internal APIs before trusting the data. Prefer this over manual inspection when you need a machine-readable quality report with evidence scope and a verifiable receipt.

## Known failure modes

- Malformed or invalid request_json input returns a validation error
- Input JSON exceeding 65536 characters is rejected
- Caller-supplied data that cannot be parsed returns an error or empty analysis
- Network or payment failures result in a non-succeeded status in the receipt
- Ambiguous or low-information search result data may produce generic warnings rather than specific quality signals

## 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 a quality analysis of the submitted search results, including any warnings (e.g. 'Verify the caller-supplied data before relying on this result.'), a service_id, an analysis_json field with detailed findings, and an evidence_scope field indicating the data source. Also includes a receipt with payment details, request/execution IDs, and a result SHA256 hash 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": "search_result_quality_report",
   "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": "search_result_quality_report",
   "executionId": "example-execution",
   "startedAtMs": 0,
   "amountAtomic": "25000",
   "resultSha256": "e0f0dfccecab75820e1a39b0f6380bb387952afd14ddb959da488e945eb6ff47",
   "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-search-result-quality-report-f24ad299/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)