# Mecker Capital Crypto Pair Z-Score & Trading Signal

> Mecker Capital Crypto Pair Z-Score & Trading Signal is a paid API for AI agents from api.meckercapital.com, paid per call via x402, $0.050000/call, status unknown (last checked 2026-09-14).

Returns the current z-score and mean-reversion trading signal (with regime classification) for a specified crypto perpetual futures pair.

## Facts

- Endpoint: GET https://api.meckercapital.com/v1/signals/:pair_key
- Price: $0.050000/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 4
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-meckercapital-com-299ae7c4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VopdQE0Azq9BqecdKEM9f

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 api-meckercapital-com-299ae7c4
```

Example prompt: What's the current z-score and trading signal for the SOL-AVAX pair right now — is it showing a mean-reversion entry opportunity?

## When to prefer this

Use this endpoint when you need a real-time, single-pair z-score and trading signal for statistical arbitrage on crypto perpetual futures. Prefer this over the bulk endpoint when you only need one pair to minimize cost, or when latency is critical for live trading decisions.

## Known failure modes

- Unknown or unsupported pair_key returns a 404 or error response
- Pair not cointegrated or insufficient data may return a null signal or error
- Network or server errors return 5xx status
- Payment not included or invalid x402 payment header returns 402 Payment Required

## How this service works

Get the current z-score and trading signal for a crypto pair. Real-time mean reversion signal for statistical arbitrage pair trading on perpetual futures. Quantitative trading intelligence.

## Output

Returns a JSON object with the pair key, current z-score (numeric), directional trading signal (e.g. long/short/neutral), market regime classification, and a UTC timestamp of the computation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "pair_key"
     ],
     "properties": {
      "pair_key": {
       "type": "string",
       "description": "Short pair key, e.g. SOL-AVAX."
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "regime": {
       "type": "string"
      },
      "signal": {
       "type": "string"
      },
      "z_score": {
       "type": "number"
      },
      "pair_key": {
       "type": "string"
      },
      "timestamp": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-meckercapital-com-299ae7c4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.meckercapital.com](https://www.zero.xyz/host/api.meckercapital.com/llms.txt)