# SignalHarness Market Correlation Analysis

> SignalHarness Market Correlation Analysis is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Analyzes market correlation relationships based on caller-supplied data and returns a correlation assessment with supporting evidence

## Facts

- Endpoint: POST https://signalharness.ai/api/agent/services/market_correlation/invoke
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalharness-market-correlation-analysis-67cb11b8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_A0903lM1w3LeoLTY27R4A

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-market-correlation-analysis-67cb11b8 -d '<json body>'
```

Example prompt: Can you analyze the market correlation between Bitcoin and the S&P 500 over the past quarter? I want to understand how closely they move together and whether BTC is still behaving as a risk-on asset.

## When to prefer this

Choose this endpoint when you need a fast, pay-per-call AI-driven market correlation assessment based on descriptive or quantitative data you supply directly, without needing to connect to a live market data feed. Ideal for agents that already have market data in context and want an analytical judgment rather than a raw data pull. At $0.01 USDC per call via x402, it suits high-frequency agentic workflows where cost predictability matters.

## Known failure modes

- Empty or too-short request string (below 2 characters) causes validation failure
- Request exceeding 65,536 characters is rejected
- Insufficient or ambiguous market data in the request may produce low-confidence output with warnings
- Payment failure or underfunding results in 402 response before execution
- Network or service unavailability returns a non-succeeded 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 market_correlation field with the analysis result, a warnings array for any caveats, an evidence_scope field indicating the data source used (caller_supplied_data), a status field (succeeded/failed), and a full receipt with payment metadata including network, paymentId, latencyMs, and a SHA-256 hash of the result for verification.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "replay": false,
  "result": {
   "warnings": [
    "Correlation is not causation and depends on alignment and sampling."
   ],
   "service_id": "market_correlation",
   "evidence_scope": "caller_supplied_data",
   "market_correlation": "{\"correlation\":\"1\",\"observation_count\":3}"
  },
  "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": "market_correlation",
   "executionId": "example-execution",
   "startedAtMs": 0,
   "amountAtomic": "10000",
   "resultSha256": "1c10b014fa8a984e9e692c18553ac981e1b06b3b3022f9fbd5bc26a4dffc6d3d",
   "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-market-correlation-analysis-67cb11b8/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)