# 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 prediction market orderbook data, implied Yes/No probabilities, volume, and whale sentiment for a given macro, crypto, or AI event topic.

## Facts

- Endpoint: GET https://x402broker.com/v1/election-odds?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-48a4459f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ixkjnCgoeW-PZc8o7HF-U

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-48a4459f
```

Example prompt: What are the live Polymarket odds and implied yes/no probabilities right now for the Fed cutting interest rates in September 2025, including any whale sentiment signals?

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates from Polymarket's prediction markets for macro, crypto, political, or AI events. Prefer this over news sentiment tools when you want quantified market-implied probabilities backed by real money, or when you need whale/large-trader positioning signals rather than just public opinion polls.

## Known failure modes

- No matching Polymarket market found for the given topic — returns empty or null results
- Topic keyword too vague to match a specific market — ambiguous results returned
- Polymarket API or orderbook feed temporarily unavailable — upstream timeout or error
- Payment of $0.01 USDC via x402 not completed — 402 Payment Required response
- Rate limiting if called too frequently without proper payment flow

## 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/election-odds)

## Output

Returns live Polymarket prediction market data for the queried topic, including implied Yes/No probabilities derived from the orderbook, current trading volume, and whale sentiment signals indicating large-trader positioning on the 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/x402broker-com-polymarket-live-prediction-market-odds-implied-48a4459f/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)