# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from 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 topic keyword or question

## Facts

- Endpoint: GET https://agentdiet.dev/v1/polymarket-alpha?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: agentdiet.dev
- Website: https://agentdiet.dev
- Canonical page: https://www.zero.xyz/c/agentdiet-dev-polymarket-live-prediction-market-odds-implied-a226cc1e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_illEDJYJyLcuGMUfZbDx6

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 agentdiet-dev-polymarket-live-prediction-market-odds-implied-a226cc1e
```

Example prompt: What are the current Polymarket odds and implied probabilities for a US recession happening this year — including volume and whale sentiment?

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, or AI events from Polymarket's prediction market — especially when you want implied Yes/No odds, orderbook depth, and whale sentiment in a single call rather than scraping Polymarket directly or polling raw exchange data.

## Known failure modes

- Topic keyword matches no active Polymarket markets — returns empty result or no-match response
- Polymarket API unavailable or rate-limited — upstream fetch failure
- Ambiguous topic keyword matches multiple markets — may return aggregated or first-match results
- Payment not processed (x402) — endpoint returns 402 Payment Required before data is served
- Stale data if Polymarket orderbook has low liquidity on the queried market

## 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://agentdiet.dev/v1/polymarket-alpha)

## Output

Returns live Polymarket prediction market data including implied Yes and No probabilities (as percentages), current orderbook snapshot, 24h trading volume, and whale sentiment signals for the queried topic or event keyword.

## 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/agentdiet-dev-polymarket-live-prediction-market-odds-implied-a226cc1e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdiet.dev](https://www.zero.xyz/host/agentdiet.dev/llms.txt)