# Polymarket Live Prediction Market Odds & Implied Probability Feed

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

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

## Facts

- Endpoint: GET https://alpha-stream.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: alpha-stream.agentdiet.dev
- Website: https://alpha-stream.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/alpha-stream-agentdiet-dev-polymarket-live-prediction-market-odds-d1c917f5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pfu8HRtkJqsrv9FOWVhgm

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 alpha-stream-agentdiet-dev-polymarket-live-prediction-market-odds-d1c917f5
```

Example prompt: What are the live Polymarket odds right now for Bitcoin reaching $150k before end of 2025 — give me the Yes/No implied probabilities, volume, and what the whales are doing?

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates for specific future events — especially macro, crypto, or AI-related outcomes — and want market-derived implied odds rather than model predictions or news sentiment. Prefer this over news APIs when you want a quantitative probability, and over general search when you want a single structured market signal with volume and whale data.

## Known failure modes

- Topic keyword too vague or ambiguous — no matching Polymarket market found
- Polymarket API unavailable or rate-limited — upstream data fetch failure
- Market exists but is illiquid — low volume results in unreliable implied probabilities
- Payment failure via x402 — $0.01 USDC payment not processed
- Topic returns multiple markets — ambiguous response covering several related events

## 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://alpha-stream.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, trading volume, and whale sentiment indicators derived from large-order activity in the market.

## 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/alpha-stream-agentdiet-dev-polymarket-live-prediction-market-odds-d1c917f5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from alpha-stream.agentdiet.dev](https://www.zero.xyz/host/alpha-stream.agentdiet.dev/llms.txt)