# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from workflows.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://workflows.agentdiet.dev/v1/market-odds?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: workflows.agentdiet.dev
- Website: https://workflows.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/workflows-agentdiet-dev-polymarket-live-prediction-market-odds-153f3f6e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IFOB3WeRhZ0C6Gzz4H-ED

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 workflows-agentdiet-dev-polymarket-live-prediction-market-odds-153f3f6e
```

Example prompt: What are the live Polymarket odds and implied Yes/No probabilities for Bitcoin hitting $100k by end of year — including volume and whale sentiment?

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates for specific macro, crypto, or AI events from Polymarket's decentralized prediction market. It is ideal when you want not just odds but also volume, orderbook depth, and whale sentiment in a single call. Prefer this over general news or price feeds when you want market-implied probability of a discrete binary outcome.

## Known failure modes

- Topic keyword matches no active Polymarket market — returns empty or no-match result
- Ambiguous topic string matches multiple markets — may return an aggregated or top-match result
- Polymarket API downtime causes stale or failed data fetch
- Payment not completed (HTTP 402) — endpoint requires $0.01 USDC per call via x402
- Very niche or newly created markets may have low liquidity, making orderbook data unreliable

## 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://workflows.agentdiet.dev/v1/market-odds)

## Output

Returns a structured object containing live Polymarket orderbook data for the queried topic, including implied Yes and No probabilities (as percentages or decimals), market volume, buy/sell pressure, and whale sentiment signals for the matching 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/workflows-agentdiet-dev-polymarket-live-prediction-market-odds-153f3f6e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from workflows.agentdiet.dev](https://www.zero.xyz/host/workflows.agentdiet.dev/llms.txt)