# 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-feed?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-a1707369
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7cAUutZmrasQrXLP-O0sA

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-a1707369
```

Example prompt: What are the current Polymarket odds and implied Yes/No probabilities for a US recession happening this year — including volume and whale sentiment?

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, political, or AI events as priced by actual money on Polymarket. It is distinct from news sentiment or analyst forecasts — it reflects actual trader-staked implied probabilities and whale orderflow, making it ideal for quantitative event-risk assessment or trading signal generation.

## Known failure modes

- No matching Polymarket market found for the given topic keyword — returns empty or low-confidence result
- Stale data if Polymarket orderbook has low liquidity or the market is recently resolved
- Ambiguous topic string matches multiple markets — may return aggregated or top-ranked result
- Payment failure (HTTP 402) if x402 USDC micropayment is not properly handled
- Rate limiting or timeout if Polymarket upstream is slow or unavailable

## 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-feed)

## Output

Returns live Polymarket orderbook data for the queried topic, including implied Yes/No probabilities (as percentages or decimals), trading volume, and whale accumulation or sentiment signals for the matched 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/shopify-spy-agentdiet-dev-polymarket-live-prediction-market-odds-a1707369/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)