# 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 2026-10-23).

Fetches live Polymarket prediction market orderbook data, implied Yes/No probabilities, trading volume, and whale sentiment for macro, crypto, and AI-related events.

## Facts

- Endpoint: POST https://agentdiet.dev/v1/polymarket-odds?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- 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-24cf8681
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IzfKSLbxpWiPBJsr3wk9_

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-24cf8681 -d '<json body>'
```

Example prompt: What are the live Polymarket odds and implied probabilities right now for Bitcoin ETF approval — including current volume and any whale sentiment signals?

## When to prefer this

Use this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, political, or AI events specifically from Polymarket's prediction market orderbooks. Prefer this over general news sentiment APIs when you want financially-backed implied probabilities rather than qualitative opinion. Best when you need whale sentiment or volume-weighted market consensus rather than survey or poll data.

## Known failure modes

- Topic keyword too vague or not matching any active Polymarket market — returns empty or low-confidence results
- Polymarket API unavailable or rate-limited — may return upstream error or stale data
- Very niche or newly created markets may have thin orderbooks and unreliable implied probabilities
- Payment failure via x402 protocol results in 402 response and no data returned

## 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-odds)

## Output

Returns live Polymarket orderbook data including implied Yes/No probabilities (as percentages or decimals), current trading volume, whale/large-trader sentiment signals, and relevant market metadata for the queried event or topic.

## 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-24cf8681/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)