# 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 2026-10-21).

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

## Facts

- Endpoint: GET https://agentdiet.dev/v1/polymarket-prediction-stream?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- 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-0cae0680
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0I52gJUKElPFIYdaUN2Ex

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-0cae0680
```

Example prompt: What are the live Polymarket odds right now for Bitcoin reaching $150k by end of 2025 — give me the implied Yes/No probabilities and any whale sentiment signals.

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, or AI events from Polymarket's prediction market orderbooks. Prefer this over news sentiment or analyst forecasts when you want market-implied probabilities backed by real money. It is especially useful for events like Fed decisions, crypto price milestones, elections, and AI regulation where Polymarket has active liquidity.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null results
- Stale or unavailable orderbook data if Polymarket API is down
- Ambiguous topic keyword matching multiple markets — may return incorrect market
- Payment failure via x402 if USDC balance is insufficient
- Rate limiting or timeout if queried at high frequency

## 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/polymarket-prediction-stream)

## Output

Returns live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities (as percentages or decimals), current trading volume, and whale sentiment signals for relevant macro, crypto, or AI 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/agentdiet-dev-polymarket-live-prediction-market-odds-implied-0cae0680/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)