# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from workflows.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Fetches live Polymarket prediction market orderbook data, implied Yes/No probabilities, volume, and whale sentiment for macro, crypto, and AI events by topic keyword.

## Facts

- Endpoint: GET https://workflows.agentdiet.dev/v1/polymarket-odds?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: workflows.agentdiet.dev
- Website: https://workflows.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/workflows-agentdiet-dev-polymarket-live-prediction-market-odds-8cd613ff
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_blmGpS1-H6vxozNatTEjc

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 workflows-agentdiet-dev-polymarket-live-prediction-market-odds-8cd613ff
```

Example prompt: What are the current Polymarket odds and implied Yes/No probabilities for a US recession happening in 2025 — include volume and any whale sentiment signals?

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates from Polymarket's prediction markets for macro, crypto, AI, or geopolitical events. Prefer it over news sentiment or analyst forecasts when you want market-implied probabilities backed by financial skin-in-the-game. Best for agents that need to quantify event risk or incorporate prediction market signals into decision-making.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null result
- Polymarket API or upstream data feed unavailable — may return 503 or error object
- Ambiguous topic matches multiple markets — returns data for best-matching market which may not be intended
- Payment failure or x402 authentication issue — returns 402 Payment Required
- Stale data if Polymarket orderbook feed has a lag — probabilities may not reflect the absolute latest trade

## 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://workflows.agentdiet.dev/v1/polymarket-odds)

## Output

Returns live Polymarket orderbook data for the queried topic, including implied Yes probability, implied No probability, total market volume, and whale sentiment indicators 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/workflows-agentdiet-dev-polymarket-live-prediction-market-odds-8cd613ff/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from workflows.agentdiet.dev](https://www.zero.xyz/host/workflows.agentdiet.dev/llms.txt)