# Polymarket Live Prediction Market Odds & Implied Probability Feed

> Polymarket Live Prediction Market Odds & Implied Probability Feed is a paid API for AI agents from serp-extract.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-23).

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

## Facts

- Endpoint: POST https://serp-extract.agentdiet.dev/v1/polymarket-feed?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Provider: serp-extract.agentdiet.dev
- Website: https://serp-extract.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/serp-extract-agentdiet-dev-polymarket-live-prediction-market-odds-89e4670d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6AGhMwLmHuKOSo0rA3SMq

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 serp-extract-agentdiet-dev-polymarket-live-prediction-market-odds-89e4670d -d '<json body>'
```

Example prompt: What are the current Polymarket odds and implied probabilities for a US Federal Reserve rate cut in 2025? I want to see the live Yes/No probabilities and any whale sentiment signals.

## When to prefer this

Choose this endpoint when you need real-time crowd-sourced probability estimates for macro, crypto, political, or AI events from Polymarket's prediction market — especially when you want implied probability percentages, orderbook depth, and whale accumulation signals rather than news sentiment or analyst forecasts. Prefer this over general news search when you need a quantified market-consensus probability rather than qualitative coverage.

## Known failure modes

- Topic keyword matches no active Polymarket markets — returns empty or null market data
- Ambiguous topic string matches multiple unrelated markets — response may include irrelevant markets
- Polymarket API upstream unavailability causes timeout or error response
- Very niche or newly created markets may have low liquidity, producing unreliable implied probabilities
- Payment failure via x402 prevents endpoint execution

## 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://serp-extract.agentdiet.dev/v1/polymarket-feed)

## Output

Returns a structured object containing live Polymarket orderbook data for the queried topic, including implied Yes/No probabilities expressed as percentages, current trading volume, and whale sentiment signals indicating large-trader positioning on the relevant 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/serp-extract-agentdiet-dev-polymarket-live-prediction-market-odds-89e4670d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from serp-extract.agentdiet.dev](https://www.zero.xyz/host/serp-extract.agentdiet.dev/llms.txt)