# 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 orderbook data, implied Yes/No probabilities, trading volume, and whale sentiment for any macro, crypto, or AI prediction market event by topic keyword.

## Facts

- Endpoint: GET https://workflows.agentdiet.dev/v1/prediction-oracle?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-723724ee
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4zalUxq8U_nL5WQUZH9E9

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-723724ee
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities for Bitcoin ETF approval this quarter — including current volume and whale sentiment?

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates from Polymarket for macro, crypto, political, or AI events — especially when you want both implied probabilities and whale sentiment in one call. Prefer this over general news or sentiment APIs when you specifically need prediction market consensus odds backed by on-chain trading volume.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null market data
- Polymarket API or upstream data feed is temporarily unavailable — returns service error
- Ambiguous topic matches multiple markets — may return the most relevant or require refinement
- Payment of $0.01 USDC via x402 fails — request is rejected with 402 Payment Required

## 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/prediction-oracle)

## Output

Returns a structured object containing live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities, current trading volume, and whale sentiment signals for the matched prediction market event.

## 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-723724ee/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)