# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from shopify-spy.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://shopify-spy.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: shopify-spy.agentdiet.dev
- Website: https://shopify-spy.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/shopify-spy-agentdiet-dev-polymarket-live-prediction-market-odds-7e2d60a5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_w89V-EnXGUwkp9wHl4wm7

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 shopify-spy-agentdiet-dev-polymarket-live-prediction-market-odds-7e2d60a5
```

Example prompt: Pull the live Polymarket odds and implied Yes/No probabilities for 'Will the Fed cut rates in September 2025?' — I want to see current orderbook sentiment and whale positioning.

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, geopolitical, or AI events as priced by Polymarket traders — especially when you want orderbook depth, whale sentiment, and volume alongside implied probabilities. Prefer this over generic news or sentiment APIs when you specifically need market-implied probabilities rather than editorial opinion.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or null results
- Topic is too vague and matches multiple markets — may return ambiguous or blended data
- Polymarket API or data feed is temporarily unavailable — upstream timeout or error
- Payment not processed (x402 HTTP 402 response) — call fails if micropayment not authorized
- Rate limit or quota exceeded — endpoint returns 429 or similar error

## 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://shopify-spy.agentdiet.dev/v1/polymarket-prediction-stream)

## Output

Returns a structured object containing live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities, 24-hour trading volume, whale sentiment signals, and market metadata for matching 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/shopify-spy-agentdiet-dev-polymarket-live-prediction-market-odds-7e2d60a5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from shopify-spy.agentdiet.dev](https://www.zero.xyz/host/shopify-spy.agentdiet.dev/llms.txt)