# 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-security.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Fetches live Polymarket prediction market orderbooks, implied Yes/No probabilities, volume, and whale sentiment for a given macro, crypto, or AI event topic.

## Facts

- Endpoint: GET https://mcp-security.agentdiet.dev/v1/polymarket-odds?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: mcp-security.agentdiet.dev
- Website: https://mcp-security.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/mcp-security-agentdiet-dev-polymarket-live-prediction-market-odds-aed57b37
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bzSkoikJ_bInAmSwW3HZL

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-security-agentdiet-dev-polymarket-live-prediction-market-odds-aed57b37
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities for 'Will the Fed cut rates in September 2025?' — including current volume and whale sentiment?

## When to prefer this

Choose this endpoint when you need real-time, crowd-sourced probability estimates for macro, crypto, or AI events from Polymarket's prediction market. Prefer it over news sentiment or analyst forecasts when you want market-implied probabilities backed by real money and whale orderflow. Ideal for trading bots, research agents, or decision-support systems that need live event probability data rather than static analysis.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null result
- Topic string too vague to match a specific market — may return multiple or irrelevant markets
- Polymarket API upstream unavailable — may return 502 or timeout error
- Payment failure via x402 protocol — returns 402 Payment Required if USDC micropayment not settled
- Rate limiting or quota exhaustion — returns 429 Too Many Requests

## 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-security.agentdiet.dev/v1/polymarket-odds)

## Output

Returns a structured response containing live Polymarket orderbook data, implied Yes and No probabilities for the queried event, 24-hour trading volume, and whale sentiment indicators — giving a real-time snapshot of collective market belief around the specified topic.

## 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-security-agentdiet-dev-polymarket-live-prediction-market-odds-aed57b37/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-security.agentdiet.dev](https://www.zero.xyz/host/mcp-security.agentdiet.dev/llms.txt)