# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from defi-yield.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 a given topic keyword or event question

## Facts

- Endpoint: GET https://defi-yield.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: defi-yield.agentdiet.dev
- Website: https://defi-yield.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/defi-yield-agentdiet-dev-polymarket-live-prediction-market-odds-84ca389a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NR7bHNOYj6h6LnAsj_lIF

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 defi-yield-agentdiet-dev-polymarket-live-prediction-market-odds-84ca389a
```

Example prompt: What are the current live Polymarket odds and implied Yes/No probabilities for a Bitcoin ETF approval, including volume and whale sentiment?

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates and trader sentiment for macro, crypto, or AI events sourced specifically from Polymarket's orderbook data. Prefer this over general news or sentiment APIs when you want market-implied probabilities backed by real money, volume signals, and whale activity rather than social media sentiment or analyst forecasts.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null results
- Topic string too vague or ambiguous, returning unrelated markets
- Polymarket API or upstream data feed temporarily unavailable, causing stale or missing data
- Rate limiting or payment failure (x402) blocking the request
- Market may be resolved/closed, returning historical rather than live data

## 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://defi-yield.agentdiet.dev/v1/crypto-betting-odds)

## Output

Returns live Polymarket orderbook data including implied Yes/No percentage probabilities, total trading volume, whale sentiment indicators, and market metadata for the queried event topic or 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/defi-yield-agentdiet-dev-polymarket-live-prediction-market-odds-84ca389a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from defi-yield.agentdiet.dev](https://www.zero.xyz/host/defi-yield.agentdiet.dev/llms.txt)