# Polymarket Prediction Markets Scraper (`rocketapi/polymarket-markets`) Actor

Scrapes live Polymarket prediction market data by category or market slug. Returns question, outcomes, prices, liquidity, volume and expiration for each market.

- **URL**: https://apify.com/rocketapi/polymarket-markets.md
- **Developed by:** [Antony Zaikin](https://apify.com/rocketapi) (community)
- **Categories:** Other, Business
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

$8.00 / 1,000 market scrapeds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

Actors are web data automations that power AI and operations. They run on the Apify platform to scrape websites, process data, connect APIs, and automate workflows.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.
Actors are written with capital "A".

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.
The best way to integrate Actors is as follows.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
- **Agentic workflows and local Actor development** — [Agent Skills](https://apify.com/.well-known/agent-skills/index.json) with the [Apify CLI](https://docs.apify.com/cli/docs.md): `npm install -g apify-cli`, then `apify login`.
- **JavaScript/TypeScript projects** — the official [JS/TS client](https://docs.apify.com/api/client/js/docs.md): `npm install apify-client`.
- **Python projects** — the official [Python client](https://docs.apify.com/api/client/python/docs.md): `pip install apify-client`.
- **Any other language** — the [REST API](https://docs.apify.com/api/v2.md).

For usage examples, see the [API](#api) section below.

For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt).

# README

## Polymarket Prediction Markets Scraper

Scrapes live Polymarket prediction market data by category or market slug via the public
`gamma-api.polymarket.com` REST API. No authentication, no headless browser, no HTML parsing.

### Input

- `category` — Polymarket tag slug (`politics`, `sports`, `crypto`, `business`, `pop-culture`, `elections`, ...). Empty = all categories. Ignored if `marketSlug` is set.
- `marketSlug` — slug of a single specific market. If set, overrides `category`/`activeOnly`.
- `activeOnly` — only active, non-closed markets. Default `true`. Used only when `marketSlug` is empty.
- `maxItems` — max number of markets to return. Default `100`.

### Output

One dataset record per market: question, outcomes, outcome prices, volume, liquidity, best bid/ask,
spread, start/end dates, category.

### Pricing

Pay-per-event: `market-scraped`, charged once per market record returned.

# Actor input Schema

## `category` (type: `string`):

Slug of the Polymarket category/tag (e.g., politics, sports, crypto). Empty string for all categories.

## `marketSlug` (type: `string`):

Slug of a specific market (e.g., us-recession-by-end-of-2026). If set, category and activeOnly are ignored.

## `activeOnly` (type: `boolean`):

Only return active and non-closed markets. Ignored if marketSlug is set.

## `maxItems` (type: `integer`):

Maximum number of market records to scrape.

## Actor input object example

```json
{
  "category": "",
  "marketSlug": "",
  "activeOnly": true,
  "maxItems": 100
}
```

# Actor output Schema

## `results` (type: `string`):

No description

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {};

// Run the Actor and wait for it to finish
const run = await client.actor("rocketapi/polymarket-markets").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {}

# Run the Actor and wait for it to finish
run = client.actor("rocketapi/polymarket-markets").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{}' |
apify call rocketapi/polymarket-markets --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,rocketapi/polymarket-markets"
        }
    }
}

```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/rihSXbFrXsBjsUi2A/builds/TyW1X4ANafP5Gyl5D/openapi.json