# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from polymarket-odds.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, trading volume, and whale sentiment for a given macro, crypto, or AI event topic.

## Facts

- Endpoint: GET https://polymarket-odds.agentdiet.dev/v1/polymarket-feed?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: polymarket-odds.agentdiet.dev
- Website: https://polymarket-odds.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/polymarket-odds-agentdiet-dev-polymarket-live-prediction-market-odds-3bf827ad
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7TaY9cNUw3mwY-fwZ6Ui7

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 polymarket-odds-agentdiet-dev-polymarket-live-prediction-market-odds-3bf827ad
```

Example prompt: What are the live Polymarket odds right now on whether the Fed will cut interest rates in 2025 — give me the Yes/No implied probabilities, current volume, and what whales are betting on?

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, political, or AI events as reflected by actual money on Polymarket. Prefer this over news or sentiment APIs when you want market-implied probabilities backed by financial stake, not just opinion. Best for agents that need live prediction market data with volume and whale activity signals rather than static news headlines or social sentiment.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or no-match response
- Stale or delayed data if Polymarket API is throttled or temporarily unavailable
- Ambiguous topic returns multiple markets requiring disambiguation
- Payment failure via x402 if USDC balance is insufficient
- Network timeout if the upstream Polymarket feed is slow

## 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://polymarket-odds.agentdiet.dev/v1/polymarket-feed)

## Output

Returns a structured object containing live Polymarket orderbook data for the queried topic, including implied Yes/No probabilities (as percentages or decimals), total trading volume, whale sentiment signals, and relevant market metadata for matching prediction market events.

## 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/polymarket-odds-agentdiet-dev-polymarket-live-prediction-market-odds-3bf827ad/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from polymarket-odds.agentdiet.dev](https://www.zero.xyz/host/polymarket-odds.agentdiet.dev/llms.txt)