# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from mcp-compiler.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Fetches live Polymarket prediction market orderbook data, implied Yes/No probabilities, trading volume, and whale sentiment for a given event topic or keyword.

## Facts

- Endpoint: GET https://mcp-compiler.agentdiet.dev/v1/crypto-betting-odds?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: mcp-compiler.agentdiet.dev
- Website: https://mcp-compiler.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/mcp-compiler-agentdiet-dev-polymarket-live-prediction-market-odds-9873e858
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_e7aHjUZNGJ6cBVLbbe0oa

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 mcp-compiler-agentdiet-dev-polymarket-live-prediction-market-odds-9873e858
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities right now for Bitcoin ETF approval — including volume and whale sentiment?

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, AI, or geopolitical events sourced directly from Polymarket orderbooks. It is ideal for agents that need live market-implied odds rather than news sentiment or analyst forecasts. Prefer it over general web search when you want quantified, financially-staked probability signals with volume and whale activity context.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null results
- Polymarket API or orderbook data temporarily unavailable — may return a 503 or timeout
- Ambiguous topic keyword matching multiple unrelated markets — returns data for an unintended market
- Payment not authorized (x402) — endpoint returns 402 Payment Required before data is served
- Stale or low-liquidity market matched — volume and sentiment data may be unreliable

## How this service works

Fetches live Polymarket prediction market orderbooks, implied Yes/No probabilities, volume, and whale sentiment for macro/crypto/AI events. (Live x402 v2, IETF MPP & MCP endpoint at https://mcp-compiler.agentdiet.dev/v1/crypto-betting-odds)

## Output

Returns live orderbook data from Polymarket for the queried topic, including implied Yes and No probabilities (as percentages or decimals), total trading volume, and whale sentiment indicators for the matching prediction market event.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "topic"
 ],
 "properties": {
  "topic": {
   "type": "string",
   "minLength": 1,
   "description": "Prediction market topic, event keyword, or question to query live Polymarket odds"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mcp-compiler-agentdiet-dev-polymarket-live-prediction-market-odds-9873e858/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-compiler.agentdiet.dev](https://www.zero.xyz/host/mcp-compiler.agentdiet.dev/llms.txt)