# 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, $0.010000/call, status unknown (last checked 2026-10-23).

Fetches live Polymarket prediction market orderbooks, implied Yes/No probabilities, volume, and whale sentiment for macro, crypto, and AI events.

## Facts

- Endpoint: POST https://polymarket-odds.agentdiet.dev/a2a?utm_source=zero.xyz
- Price: $0.010000/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- 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-6502b2f1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7iYyuq_tnt1QI8gpV8WZb

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-6502b2f1 -d '<json body>'
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities for 'Will the Fed cut rates in 2025?' — including volume and whale sentiment?

## When to prefer this

Choose this endpoint when you need live, real-time implied probabilities and crowd-sourced sentiment from Polymarket's prediction markets for macro, crypto, or AI events. Prefer this over social sentiment APIs when you want financially-staked probability estimates rather than unweighted opinion, and over news APIs when you want forward-looking market consensus rather than historical reporting.

## Known failure modes

- No matching Polymarket market found for the given topic — returns empty or low-confidence results
- Polymarket API or data feed is temporarily unavailable — may return a service error
- Ambiguous topic keyword matches multiple markets — results may blend or select the most liquid market
- Market may be resolved or expired — returns stale or closed market data
- Payment (x402) not fulfilled — request blocked before reaching the data layer

## 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/a2a)

## Output

Returns live Polymarket orderbook data including implied Yes and No probabilities, total trading volume, whale sentiment indicators, and market metadata for the queried prediction market topic or event 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/polymarket-odds-agentdiet-dev-polymarket-live-prediction-market-odds-6502b2f1/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)