# 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 including implied Yes/No probabilities, trading volume, and whale sentiment for macro, crypto, and AI prediction market events.

## Facts

- Endpoint: GET https://alpha-stream.agentdiet.dev/v1/election-odds?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-c2d7ec1b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bx9Qe-6Rlr9WUre3iTUGG

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-c2d7ec1b
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities for Bitcoin reaching $150k by end of 2025 — including current volume and whale sentiment?

## When to prefer this

Choose this endpoint when you need real-time, crowd-sourced probability estimates for discrete future events — especially in crypto, macro, politics, or AI domains — rather than traditional financial data APIs. It is ideal when you want market-implied odds rather than analyst forecasts, or when you specifically need Polymarket orderbook depth and whale sentiment rather than aggregated prediction market indices.

## Known failure modes

- No matching market found for the queried topic — returns empty or null result
- Topic keyword too vague to match a specific Polymarket market — returns multiple ambiguous matches or no data
- Payment failure via x402 — HTTP 402 response if USDC micropayment is not processed
- Polymarket API or data feed downtime — stale or unavailable data returned
- Rate limiting or quota exceeded — HTTP 429 or similar error response

## 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/election-odds)

## Output

Returns a JSON object containing live Polymarket prediction market data for the queried topic, including implied Yes/No probabilities derived from the orderbook, current trading volume, and whale (large trader) sentiment indicators for the matched 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-c2d7ec1b/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)