# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from x402broker.com, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Fetches live Polymarket orderbook data, implied Yes/No probabilities, trading volume, and whale sentiment for a given prediction market topic or event keyword.

## Facts

- Endpoint: GET https://x402broker.com/v1/polymarket-live-odds-feed?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: x402broker.com
- Website: https://x402broker.com
- Canonical page: https://www.zero.xyz/c/x402broker-com-polymarket-live-prediction-market-odds-implied-6a62908f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hT4ghag8jGJmO5iTVEBNu

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 x402broker-com-polymarket-live-prediction-market-odds-implied-6a62908f
```

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

## When to prefer this

Choose this endpoint when you need live, real-money crowd-sourced probability estimates for macro, crypto, or AI events — particularly when you want orderbook depth, trading volume, and large-trader (whale) sentiment rather than just a headline price. Prefer it over news APIs or sentiment scrapers when you want market-implied probabilities rather than qualitative opinion.

## Known failure modes

- No matching Polymarket market found for the given topic — returns empty or null result
- Polymarket API unavailable or rate-limited — upstream error propagated
- Ambiguous topic keyword matching multiple markets — may return the most liquid or first match
- Stale data if Polymarket orderbook has low liquidity or inactive market
- Payment not processed (x402) — endpoint returns 402 before data is delivered

## 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://x402broker.com/v1/polymarket-live-odds-feed)

## Output

Returns live Polymarket orderbook snapshot including implied Yes and No probabilities (as percentages or decimals), trading volume, whale sentiment signals, and relevant market metadata for the queried event or topic 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/x402broker-com-polymarket-live-prediction-market-odds-implied-6a62908f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402broker.com](https://www.zero.xyz/host/x402broker.com/llms.txt)