# 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 orderbook data, implied Yes/No probabilities, trading volume, and whale sentiment for a given macro, crypto, or AI event topic.

## Facts

- Endpoint: GET https://alpha-stream.agentdiet.dev/v1/prediction-markets?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-47b1e05a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qT2kg6UpV-cn41LwOdSAN

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-47b1e05a
```

Example prompt: What are the current live Polymarket odds and implied probability for Bitcoin reaching $150k before the end of 2025 — include whale sentiment and volume if available.

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, or AI events as reflected in Polymarket's live orderbooks, especially when you want implied probability percentages, volume context, and whale sentiment rather than just news or analyst opinion.

## Known failure modes

- No matching market found for the given topic keyword — returns empty or null results
- Polymarket API unavailable or rate-limited — upstream timeout or 5xx error
- Ambiguous topic matches multiple markets — results may include unintended markets
- Payment not processed (HTTP 402) — call blocked until x402 USDC payment is fulfilled
- Topic too vague — broad keywords return low-relevance or stale markets

## 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-markets)

## Output

Returns live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities, current market volume, and whale sentiment signals for the matching 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/alpha-stream-agentdiet-dev-polymarket-live-prediction-market-odds-47b1e05a/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)