# 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, trading volume, and whale sentiment for a given macro, crypto, or AI event topic.

## Facts

- Endpoint: GET https://workflows.agentdiet.dev/v1/fomc-rate-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-60516f55
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Iz4fzXcYguGRCRpE0pVNI

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-60516f55
```

Example prompt: What are the current live Polymarket odds and implied Yes/No probabilities for the FOMC cutting interest rates at the next meeting — and what's the whale sentiment look like?

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates from Polymarket's prediction market orderbooks for macro, crypto, or AI events — especially when you want implied probabilities, volume context, and whale sentiment rather than news sentiment or analyst forecasts. Prefer this over general news APIs or sentiment tools when you need quantitative market-derived probability data.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null market data
- Payment not processed (x402 HTTP 402 response) if USDC micropayment is not included or fails
- Stale or delayed data if Polymarket API is experiencing latency
- Ambiguous topic keyword matches multiple markets — may return the wrong or most liquid matching market
- Rate limiting or quota exhaustion returning 429 or similar error

## 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/fomc-rate-odds)

## 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 derived from large-order activity on the platform.

## 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-60516f55/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)