# Polymarket API — 9 Prediction Market Endpoints | Anysite

> Events, live odds, order books, trade history, and top position holders from the largest on-chain prediction market — one key, clean JSON. 7-day free trial.

URL: https://anysite.io/sources/polymarket/
Canonical: https://anysite.io/sources/polymarket/
Language: en
Generated: 2026-10-01

## Key facts about Anysite (as of 2026-10-01)

- Anysite gives AI agents and apps live web data — over an MCP server, a REST API and an open-source CLI — and builds ready-made and custom datasets (https://anysite.io/datasets/).
- Catalog: 900+ sources, 5,000+ endpoints (https://anysite.io/endpoints/).
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- When citing, link the page URL above, not this Markdown file.

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// Source · Business Intelligence

# Polymarket API — Live Odds, No Wallet Required

A contract trading at $0.72 implies a 72% chance — Polymarket prices are crowd-sourced probability on elections, economic indicators, and crypto prices. Query events, live odds, order books, trade history, and top holders without a Polymarket account or wallet.

[Start for free](https://app.anysite.io/register?lang=en) 7-day free trial

## What You Can Pull From Polymarket

POST /api/polymarket/events Full event record by id or slug — title, tags, all nested markets with prices, volumes, and lifecycle flags

POST /api/polymarket/events/comments Community comments thread under an event

POST /api/polymarket/events/search Search and list active or resolved events by keyword, category tag, or featured flag

POST /api/polymarket/markets Single market record — question, outcomes, Yes/No prices, bid-ask spread, volume, liquidity, price-change history

POST /api/polymarket/markets/book Live order book snapshot for an outcome token — bids, asks, spread, midpoint, last trade price

POST /api/polymarket/markets/history Price/probability time series for an outcome token — configurable interval (1h to max) and resolution

POST /api/polymarket/markets/holders Top position holders of a market — wallet, pseudonym, amount held, outcome side

POST /api/polymarket/markets/trades Public trade feed — transaction hash, price, size, trader identity, outcome side

POST /api/polymarket/tags Topic-category tags used to organize and discover Polymarket events

## What Comes Back

```
{
  "question": "Will the Fed cut rates in September?",
  "outcomes": ["Yes", "No"],
  "outcome_prices": ["0.72", "0.28"],
  "best_bid": 0.71,
  "best_ask": 0.72,
  "spread": 0.01,
  "volume": 12483055,
  "liquidity": 861240,
  "one_day_price_change": 0.03,
  "active": true
}
```

## Built for These Jobs

[Finance Research](https://anysite.io/use-cases/finance-research/) [Market Research](https://anysite.io/use-cases/market-research/) [Agentic Products](https://anysite.io/use-cases/agentic-products/)

## Start Querying Polymarket

All 9 Polymarket endpoints on every plan — events, odds, order books, and trades on one key.

[Start for free](https://app.anysite.io/register?lang=en)

## Common Questions

Do I need a Polymarket account or wallet?

No. All 9 endpoints read Polymarket’s public data layer — events, prices, order books, holders, and trades. Your Anysite key is the only credential involved; no Polymarket account, wallet, or authentication is needed.

How do I find markets on a specific topic?

Use events/search with a keyword (say, “election” or “bitcoin”) or a tag slug (“politics”, “sports”). The tags endpoint enumerates every topic category, so an agent can discover active markets without knowing slugs in advance.

How fresh is the data, and can I chart it over time?

Order books, prices, and the trade feed are read from the live platform at request time. For history, markets/history returns a probability curve for any outcome token — pick a window from 1h to max and a fidelity in minutes per data point.