# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-23).

Fetches live Polymarket prediction market orderbooks, implied Yes/No probabilities, volume, and whale sentiment for macro, crypto, and AI event topics.

## Facts

- Endpoint: POST https://agentdiet.dev/v1/fomc-rate-odds?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: agentdiet.dev
- Website: https://agentdiet.dev
- Canonical page: https://www.zero.xyz/c/agentdiet-dev-polymarket-live-prediction-market-odds-implied-27955580
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZJRLyFp4A_lTUczZQE4zY

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 agentdiet-dev-polymarket-live-prediction-market-odds-implied-27955580 -d '<json body>'
```

Example prompt: What are the current Polymarket odds and implied Yes/No probabilities for a Fed rate cut at the next FOMC meeting — including volume and whale sentiment?

## 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 on Polymarket. It is preferable over news sentiment or analyst forecasts when you want market-implied probabilities backed by real money. Choose this over generic financial APIs when the question is binary (Yes/No) and you want orderbook depth and whale activity, not just a price or headline.

## Known failure modes

- Topic keyword returns no matching Polymarket markets — empty or null result set
- Ambiguous topic string matches multiple markets — may return aggregated or first-match data
- Polymarket API downtime or rate limiting causes delayed or failed data fetch
- Payment not completed via x402 — 402 response with payment required details
- Malformed topic input (empty string) rejected at schema validation

## 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://agentdiet.dev/v1/fomc-rate-odds)

## Output

Returns live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities, total market volume, and whale sentiment signals derived from large-order activity.

## 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/agentdiet-dev-polymarket-live-prediction-market-odds-implied-27955580/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdiet.dev](https://www.zero.xyz/host/agentdiet.dev/llms.txt)