# 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 orderbook data, implied Yes/No probabilities, volume, and whale sentiment from Polymarket for any macro, crypto, or AI prediction market topic

## Facts

- Endpoint: GET https://whale-momentum.agentdiet.dev/v1/polymarket-prediction-stream?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-9fa58ff5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-BJ7jpf8zkYersE33REAu

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-9fa58ff5
```

Example prompt: What are the live Polymarket odds right now for the Fed cutting interest rates in Q3 2025 — give me the implied Yes/No probabilities and any whale sentiment signals you can find?

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, political, or AI events as priced by actual market participants on Polymarket, especially when you want whale sentiment and orderbook depth alongside raw odds. Prefer this over static news or sentiment APIs when you want financially-backed implied probabilities rather than editorial opinion.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null results
- Stale or delayed data if Polymarket API is experiencing downtime
- Ambiguous topic string may return unrelated markets — requires precise keyword
- Payment failure via x402/HTTP 402 if insufficient USDC balance
- Rate limiting or timeout if the Polymarket orderbook stream is slow to respond

## 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/polymarket-prediction-stream)

## 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 derived from large-order flow analysis for macro, crypto, and AI 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/whale-momentum-agentdiet-dev-polymarket-live-prediction-market-odds-9fa58ff5/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)