# 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 2026-10-28).

Fetches live Polymarket prediction market orderbooks, implied Yes/No probabilities, volume, and whale sentiment for macro, crypto, and AI events.

## Facts

- Endpoint: POST https://polymarket-odds.agentdiet.dev/api?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-28
- 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-a6e8265f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1AyCfZ2wwXsxRkgZX04mR

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-a6e8265f -d '<json body>'
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities for Bitcoin reaching $150,000 by end of 2025 — include volume and whale sentiment?

## When to prefer this

Use this endpoint when you need real-time crowd-derived probability estimates from actual money-at-stake prediction markets rather than opinion polls or model forecasts. Ideal for macro events, crypto milestones, AI developments, or political outcomes where Polymarket has active liquidity. Prefer this over general news or sentiment APIs when you want quantified probability and orderbook depth with whale-level signals.

## Known failure modes

- Topic too vague or ambiguous — no matching Polymarket market found, returns empty or low-confidence results
- Polymarket API or upstream data source is temporarily unavailable — may return stale or error response
- Payment not processed — HTTP 402 returned if x402 micropayment fails or is not included
- Rate limiting or repeated identical queries without idempotency key may result in duplicate charges
- Topic keyword matches multiple markets — response may aggregate or return the most liquid match without disambiguation

## 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/api)

## Output

Returns live Polymarket orderbook data including implied Yes/No probabilities, current market volume, whale sentiment signals, and relevant market metadata 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/polymarket-odds-agentdiet-dev-polymarket-live-prediction-market-odds-a6e8265f/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)