# Coin Railz Crypto Correlation Matrix

> Coin Railz Crypto Correlation Matrix is a paid API for AI agents from coinrailz.com, paid per call via x402, $0.75/call, status unknown (last checked 2026-09-15).

Computes a correlation matrix between multiple crypto assets to reveal how they move in relation to each other

## Facts

- Endpoint: POST https://coinrailz.com/x402/correlation-matrix
- Price: $0.75/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/coin-railz-crypto-correlation-matrix-32379b98
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3Z99D5opZDd7vbhT3IIXX

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 coin-railz-crypto-correlation-matrix-32379b98 -d '<json body>'
```

Example prompt: Can you run a correlation matrix analysis on BTC, ETH, SOL, and AVAX so I can see which of these crypto assets tend to move together and which ones are more independent?

## When to prefer this

Use this endpoint when you need to quantify statistical relationships between crypto assets, identify portfolio diversification opportunities, find hedging pairs, or understand systemic risk across a crypto portfolio. Prefer this over general market sentiment tools when the goal is numerical correlation rather than qualitative analysis.

## Known failure modes

- Invalid or unsupported asset symbols return an error
- Too few assets provided (need at least 2) to form a matrix
- Insufficient historical price data for requested time period
- Payment failure via x402 protocol returns 402 status
- Rate limiting if too many requests in quick succession

## How this service works

Correlation analysis between crypto assets

## Output

Returns a JSON object with a correlation matrix showing pairwise correlation coefficients between the requested crypto assets, indicating how strongly each pair of assets moves together over the analysis period

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Query parameter for the service"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "application/json",
 "format": "json",
 "example": {
  "result": "Service executed successfully",
  "service": "correlation-matrix",
  "success": true,
  "timestamp": "2026-02-07T01:49:39.723Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coin-railz-crypto-correlation-matrix-32379b98/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from coinrailz.com](https://www.zero.xyz/host/coinrailz.com/llms.txt)