# SignalHarness AI Search Pipeline Regression Report

> SignalHarness AI Search Pipeline Regression Report is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Analyzes a caller-supplied AI search pipeline configuration or result set and returns a regression report identifying issues or anomalies.

## Facts

- Endpoint: POST https://signalharness.ai/api/agent/services/ai_search_pipeline_regression_report/invoke
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalharness-ai-search-pipeline-regression-report-49809165
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_B1qt1MEKJ9ZcUrRYHLywG

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-pipeline-regression-report-49809165 -d '<json body>'
```

Example prompt: Run a regression report on my AI search pipeline — here's the pipeline run data as JSON: {"pipeline":"semantic-search-v2","run_id":"abc123","results":[{"query":"blue shoes","hits":12}]}. Flag any quality degradations or anomalies.

## When to prefer this

Choose this endpoint when you need a fast, pay-per-call regression analysis of an AI search pipeline without managing your own evaluation infrastructure. It is best suited for agents that need a portable, auditable report on search quality degradation, especially when operating within a USDC micropayment workflow on Base. Prefer alternatives if you need real-time streaming analysis, integration with a specific MLOps platform, or deeply customized regression metrics beyond what a JSON payload can describe.

## Known failure modes

- Malformed or invalid request_json input returns an error or empty analysis
- Caller-supplied data that does not conform to expected pipeline schema may produce unreliable results with warnings
- Network or payment authorization failure results in a non-200 response with no analysis
- Very large JSON payloads near the 65536-character limit may be rejected or time out
- Ambiguous pipeline data may result in low-confidence analysis with prominent warnings

## 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 regression analysis report (analysis_json), any warnings about the data quality or reliability, the evidence scope indicating data provenance, and a signed receipt with execution metadata including payment ID, latency, and a SHA-256 result hash for auditability.

## 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_pipeline_regression_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": "ai_search_pipeline_regression_report",
   "executionId": "example-execution",
   "startedAtMs": 0,
   "amountAtomic": "50000",
   "resultSha256": "7747538e3e202e7ddccde7e5f678bf09f59162f013fb9ac54e30d918be091634",
   "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-pipeline-regression-report-49809165/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)