# 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 including implied Yes/No probabilities, trading volume, and whale sentiment for prediction market questions on macro, crypto, and AI events.

## Facts

- Endpoint: GET https://polymarket-odds.agentdiet.dev/v1?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-fc47f031
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_v0MGfVVJ5JfKMy37XkHHp

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-fc47f031
```

Example prompt: What are the current Polymarket implied Yes/No probabilities and whale sentiment for 'Will Bitcoin reach $150k in 2025?' — pull the live orderbook odds right now.

## When to prefer this

Use this endpoint when you need real-time crowd-wisdom probability estimates for macro, crypto, political, or AI events from Polymarket's prediction market. Prefer this over news or sentiment APIs when you want a single implied probability figure backed by real money at stake. Ideal for trading decision support, risk assessment, or any use case where market-consensus event probability is more valuable than qualitative opinion.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null result
- Topic query is too vague and matches multiple markets ambiguously
- Polymarket API rate limits or downtime cause upstream data unavailability
- Payment via x402 fails or USDC balance is insufficient, blocking the request
- Stale or delayed data if the underlying orderbook feed has a lag

## 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)

## Output

Returns live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities (as percentages or decimals), current trading volume, and whale sentiment indicators for the matched prediction market event or question.

## 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-fc47f031/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)