# 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 orderbook data, implied Yes/No probabilities, volume, and whale sentiment from Polymarket prediction markets for a given topic keyword or question.

## Facts

- Endpoint: GET https://domain-osint.agentdiet.dev/v1/polymarket-feed?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-e10fc2b5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_A3SG1nfh8PplttNV5-bRJ

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-e10fc2b5
```

Example prompt: What are the live Polymarket odds and implied Yes probability right now for 'Bitcoin above $150k by end of 2025'? Include volume and any whale sentiment signals.

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, or AI events from Polymarket specifically, including orderbook depth and whale sentiment — not just headline odds. Prefer it over generic news or social sentiment APIs when you need market-implied probability expressed as a percentage with volume backing.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null results
- Ambiguous topic string matches multiple markets — may return the most popular or first match
- Polymarket API or data feed downtime causes stale or failed response
- Payment required (HTTP 402) if x402 authorization is not provided
- Rate limiting or quota exceeded for high-frequency polling

## 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/polymarket-feed)

## Output

Returns a structured object containing live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities, 24-hour trading volume, whale/large-trader sentiment signals, and market metadata for matching prediction market 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-e10fc2b5/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)