# 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, implied Yes/No probabilities, trading volume, and whale sentiment for a given prediction market topic or event keyword.

## Facts

- Endpoint: GET https://polymarket-odds.agentdiet.dev/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: 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-2101325b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L6wPoMkkR5zgDh4hkrx3A

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-2101325b
```

Example prompt: What are the current Polymarket odds and implied probability for the Fed cutting rates in 2025 — include the volume and whale sentiment too?

## When to prefer this

Choose this endpoint when you need real-time, crowd-sourced probability estimates for macro, crypto, political, or AI events and want Polymarket's specific orderbook depth, volume, and whale sentiment — as opposed to generic news sentiment or statistical forecasting models. Ideal for agents that need live market-implied probabilities rather than historical data or opinion polls.

## Known failure modes

- No matching market found for the queried topic — returns empty or null result
- Topic keyword too vague — may return unrelated or multiple markets
- Polymarket API upstream unavailability — may return 503 or timeout
- Payment not completed (HTTP 402) — call blocked until x402 micropayment is fulfilled
- Invalid or missing topic parameter — returns 400 validation 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://polymarket-odds.agentdiet.dev/v1/election-odds)

## Output

Returns live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities (as percentages or decimals), total trading volume, and whale sentiment indicators, allowing an agent to assess crowd-sourced event probability in real time.

## 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-2101325b/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)