# 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-live-odds-feed?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-d5698ce6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_46zToLDGbCj6lLs8qSOE4

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-d5698ce6
```

Example prompt: What are the live Polymarket odds and implied Yes/No probability right now for 'Will the Fed cut rates in Q3 2025?' — including volume and whale sentiment?

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates from Polymarket's prediction market for macro, crypto, political, or AI events — especially when you want implied Yes/No odds, live orderbook depth, volume, and whale trader sentiment rather than news sentiment or analyst forecasts.

## Known failure modes

- No matching Polymarket market found for the given topic — returns empty or null result
- Topic too vague or ambiguous — returns unrelated or multiple markets
- Polymarket API or orderbook data temporarily unavailable — upstream fetch failure
- Rate limiting or payment failure via x402 — 402 response if payment not processed
- Stale data returned if live orderbook sync is delayed

## 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-live-odds-feed)

## Output

Returns live Polymarket orderbook data including implied Yes and No probabilities (as percentages or decimals), current trading volume, and whale sentiment signals for the queried prediction market topic or 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-security-agentdiet-dev-polymarket-live-prediction-market-odds-d5698ce6/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)