# SignalHarness Model Output Consensus Analyze

> SignalHarness Model Output Consensus Analyze is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-15).

Analyzes caller-supplied JSON data to evaluate consensus or consistency across model outputs, returning structured analysis with warnings and evidence scope.

## Facts

- Endpoint: POST https://signalharness.ai/api/agent/services/model_output_consensus_analyze/invoke
- Price: $0.025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalharness-model-output-consensus-analyze-6b1694f8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fYzdgTHIVVJITQxdCqQdO

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-model-output-consensus-analyze-6b1694f8 -d '<json body>'
```

Example prompt: Can you run a consensus analysis on these three model outputs I collected and tell me if they agree? Here's the JSON: {"model_a": "positive", "model_b": "positive", "model_c": "negative"}.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call consensus analysis on JSON-encoded model outputs without standing up your own evaluation infrastructure. Ideal for multi-model pipelines where you want a third-party check on output agreement. Best suited for structured JSON data from LLMs, classifiers, or scoring models. Prefer alternatives if you need real-time streaming analysis, very large payloads, or domain-specific model evaluation frameworks.

## Known failure modes

- Malformed or invalid JSON in request_json field causes rejection
- Input JSON exceeding 65536 character limit is refused
- Caller-supplied data that does not represent model outputs may yield low-utility analysis
- Analysis warnings indicate results are not independently verified — reliance risk
- Payment failure on Base network prevents execution

## 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 an analysis_json field with structured consensus findings, a warnings array (e.g. reminders to verify caller-supplied data), and an evidence_scope field indicating the data provenance (caller_supplied_data). Wrapped in a receipt with payment metadata including paymentId, requestId, executionId, latencyMs, and a resultSha256 for integrity 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": "model_output_consensus_analyze",
   "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": "model_output_consensus_analyze",
   "executionId": "example-execution",
   "startedAtMs": 0,
   "amountAtomic": "25000",
   "resultSha256": "23fd4698aecf730fa18abbb2a0df7a72e76a112142bab949c017f2d844c0d22a",
   "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-model-output-consensus-analyze-6b1694f8/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)