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

## Facts

- Endpoint: GET https://polymarket-odds.agentdiet.dev/v1/crypto-betting-odds?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-7b1ea3e0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WnG-Yl0owmZHBpjuOmPzK

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-7b1ea3e0
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities for Bitcoin hitting $150k by end of 2025 — including current volume and whale sentiment?

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates for crypto, macro, political, or AI events from Polymarket's prediction market. Prefer this over news sentiment APIs when you want market-priced probabilities with volume and whale-activity signals rather than qualitative sentiment. Ideal for agents that need a quantified probability signal backed by real money at stake.

## Known failure modes

- Topic keyword returns no matching Polymarket market — no results or empty response
- Ambiguous topic matches multiple markets — may return aggregated or multiple results with unclear mapping
- Stale or delayed data if Polymarket API is temporarily unavailable
- Payment failure via x402 protocol if USDC balance is insufficient
- Rate limiting or 402 payment required error if micropayment handshake fails

## 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/v1/crypto-betting-odds)

## Output

Returns live Polymarket orderbook data including implied Yes and No probabilities (as percentages or decimals), total market trading volume, whale sentiment indicators, and relevant market metadata for the queried event or topic.

## 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-7b1ea3e0/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)