# Coin Railz Prediction Market Odds

> Coin Railz Prediction Market Odds is a paid API for AI agents from coinrailz.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-15).

Retrieves current odds and probability data for any prediction market event, with support for Polymarket and other prediction market platforms.

## Facts

- Endpoint: POST https://coinrailz.com/x402/prediction-market-odds
- Price: $0.5/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-prediction-market-odds-14c5ad17
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4S5bsQh7mP09zUL_vVdYr

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-prediction-market-odds-14c5ad17 -d '<json body>'
```

Example prompt: What are the current Polymarket odds and probability for 'Will the Fed cut interest rates before June 2025?' — pull the latest market data for that event.

## When to prefer this

Use this endpoint when you need real-time probability or odds data from Polymarket or similar prediction market platforms for any specific event. Prefer this over general news or sentiment APIs when you need quantified market-consensus probabilities rather than qualitative sentiment. Ideal for agents tracking event forecasts, building dashboards, or making decisions based on crowd-wisdom probabilities.

## Known failure modes

- Event not found on Polymarket — returns error or empty result
- Invalid or ambiguous event identifier — cannot resolve market
- Payment failure (USDC not available or insufficient balance) — 402 error
- Polymarket API unavailable or rate-limited — upstream error
- Malformed request body — missing required event parameter

## How this service works

Get current odds and probability for any prediction market event. Supports Polymarket and other prediction market platforms.

## Output

Returns a JSON object indicating success, the service name, a timestamp, and the result of the prediction market odds lookup, including current probability or odds for the specified event.

## 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": "prediction-market-odds",
  "success": true,
  "timestamp": "2026-02-07T01:51:11.622Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coin-railz-prediction-market-odds-14c5ad17/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)