# 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 orderbook data including implied Yes/No probabilities, trading volume, and whale sentiment for macro, crypto, and AI events.

## Facts

- Endpoint: GET https://polymarket-odds.agentdiet.dev/api?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-0fed2092
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QIEViNT-f8DPc8m2YGTrx

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-0fed2092
```

Example prompt: What are the current live Polymarket odds and implied Yes/No probabilities for the Fed cutting interest rates before the end of this year — including volume and whale sentiment?

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates for specific macro, crypto, political, or AI events as priced by Polymarket traders. Prefer this over static news or sentiment analysis when you want market-implied probabilities rather than editorial opinion. Ideal for agents that need to factor prediction market consensus into decision-making, risk assessment, or research summaries.

## Known failure modes

- No matching Polymarket market found for the given topic — returns empty or null result
- Ambiguous topic keyword matches multiple markets — may return multiple or unexpected markets
- Polymarket API upstream outage — service may return an error or stale data
- Topic too vague — insufficient specificity may yield irrelevant markets
- Rate limiting or payment failure via x402 — request rejected without valid micropayment

## 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 and No probabilities (as percentages or decimals), current trading volume, and whale sentiment signals for markets matching the queried topic or event keyword.

## 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-0fed2092/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)