# Polymarket Live Prediction Market Odds & Implied Probability Feed

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

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

## Facts

- Endpoint: GET https://whale-momentum.agentdiet.dev/v1/fomc-rate-odds?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: whale-momentum.agentdiet.dev
- Website: https://whale-momentum.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/whale-momentum-agentdiet-dev-polymarket-live-prediction-market-odds-173b1f34
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_v-51EkvE9TTIEl1poehRZ

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 whale-momentum-agentdiet-dev-polymarket-live-prediction-market-odds-173b1f34
```

Example prompt: What are the live Polymarket odds and whale sentiment right now for the FOMC rate cut decision — pull the implied Yes/No probabilities and volume for that market.

## When to prefer this

Use this endpoint when you need real-time crowd-implied probabilities and whale activity for macro, crypto, or AI events from Polymarket specifically — as opposed to general news sentiment or historical price data. Prefer this over generic search endpoints when the user explicitly wants prediction market odds, implied probabilities, or market-based event forecasts rather than analyst opinions or news articles.

## Known failure modes

- Topic keyword returns no matching Polymarket market — empty or null result
- Polymarket API upstream unavailability causes stale or failed data fetch
- Ambiguous topic string matches multiple markets, returning unexpected results
- Payment authorization failure (HTTP 402) if x402 USDC micropayment is not properly handled
- Rate limiting or timeout if called at high frequency

## 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://whale-momentum.agentdiet.dev/v1/fomc-rate-odds)

## Output

Returns a structured object containing live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities, market volume, and whale sentiment signals for the matched 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/whale-momentum-agentdiet-dev-polymarket-live-prediction-market-odds-173b1f34/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from whale-momentum.agentdiet.dev](https://www.zero.xyz/host/whale-momentum.agentdiet.dev/llms.txt)