# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from onchain-risk.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Fetches live Polymarket prediction market orderbook data, implied Yes/No probabilities, volume, and whale sentiment for any macro, crypto, or AI event topic.

## Facts

- Endpoint: GET https://onchain-risk.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: onchain-risk.agentdiet.dev
- Website: https://onchain-risk.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/onchain-risk-agentdiet-dev-polymarket-live-prediction-market-odds-ff603bcd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IYCKOLMwq6Nv-b53DmHHJ

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 onchain-risk-agentdiet-dev-polymarket-live-prediction-market-odds-ff603bcd
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities right now for Bitcoin hitting $100k before the end of 2025, including volume and whale sentiment?

## When to prefer this

Use this endpoint when you need real-time, crowd-sourced probability estimates for binary macro, crypto, or AI events from Polymarket's decentralized prediction market. Prefer this over news APIs or sentiment tools when you want market-implied probabilities backed by actual on-chain capital, orderbook depth, and whale positioning rather than just sentiment scores or headlines.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null result
- Ambiguous topic matches multiple markets — may return the most liquid or first matched market
- Polymarket API or data feed is temporarily unavailable — service error response
- Topic string too vague to resolve to a specific market — low-confidence match
- Rate limit or payment failure on the x402 micropayment layer — 402 error

## 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://onchain-risk.agentdiet.dev/v1/crypto-betting-odds)

## Output

Returns live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities (as percentages or decimals), total trading volume, whale sentiment indicators, and relevant market metadata for the matching 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/onchain-risk-agentdiet-dev-polymarket-live-prediction-market-odds-ff603bcd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from onchain-risk.agentdiet.dev](https://www.zero.xyz/host/onchain-risk.agentdiet.dev/llms.txt)