# 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, trading volume, and whale sentiment for a given macro, crypto, or AI event topic.

## Facts

- Endpoint: GET https://whale-momentum.agentdiet.dev/v1/market-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-e6a381cf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FGP-TZ4a080fVGdHbYvQK

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-e6a381cf
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities for a Federal Reserve rate cut before the end of 2025, including whale sentiment and recent trading volume?

## 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 in actual prediction market trading activity, especially when whale sentiment and orderbook depth are relevant signals. It is best suited for agents that need to factor market-implied probabilities into decision-making, reporting, or monitoring workflows rather than relying solely on news sentiment or analyst forecasts.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null results
- Stale or unavailable orderbook data if Polymarket API is temporarily unreachable
- Ambiguous topic matching multiple markets, potentially returning incorrect market data
- Payment failure (HTTP 402) if the $0.01 per-call USDC payment is not processed
- Rate limiting or upstream API throttling resulting in delayed or failed responses

## 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/market-odds)

## Output

Returns a structured object containing live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities, total trading volume, and whale sentiment indicators 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-e6a381cf/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)