# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from domain-osint.agentdiet.dev, paid per call via MPP, $0.015/call, status unknown (last checked 2026-10-21).

Fetches live Polymarket orderbook data, implied Yes/No probabilities, volume, and whale sentiment for a given macro, crypto, or AI event topic.

## Facts

- Endpoint: GET https://domain-osint.agentdiet.dev/v1/market-odds?utm_source=zero.xyz
- Price: $0.015/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: domain-osint.agentdiet.dev
- Website: https://domain-osint.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/domain-osint-agentdiet-dev-polymarket-live-prediction-market-odds-c80e5893
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p6kEjvjsghP_qowMUsYXn

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 domain-osint-agentdiet-dev-polymarket-live-prediction-market-odds-c80e5893
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities for a US recession happening this year — including volume and any whale sentiment signals?

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, political, or AI events as priced by actual market participants on Polymarket. Prefer this over general news or sentiment APIs when you want quantified probability (e.g. 67% Yes) rather than qualitative sentiment, and when whale orderflow or volume context matters for decision-making.

## Known failure modes

- No matching market found for the given topic keyword — returns empty or null results
- Polymarket API upstream outage causing stale or unavailable data
- Ambiguous topic string matching multiple unrelated markets
- Rate limiting or payment failure (HTTP 402) if payment credentials are invalid
- Topic too broad returning irrelevant or aggregated markets

## 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://domain-osint.agentdiet.dev/v1/market-odds)

## Output

Returns live Polymarket prediction market data for the queried topic, including implied Yes/No probabilities (as percentages or decimals), current orderbook state, 24h trading volume, and whale sentiment indicators for macro, crypto, political, or AI-related events.

## 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/domain-osint-agentdiet-dev-polymarket-live-prediction-market-odds-c80e5893/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from domain-osint.agentdiet.dev](https://www.zero.xyz/host/domain-osint.agentdiet.dev/llms.txt)