# Polymarket Prediction Markets Scraper (`supermiojo/polymarket-scraper`) Actor

Pull live prediction market data from Polymarket. Prices, volumes, probabilities, and resolution status for any event. No API key needed — uses public Gamma API.

- **URL**: https://apify.com/supermiojo/polymarket-scraper.md
- **Developed by:** [Igor Araujo](https://apify.com/supermiojo) (community)
- **Categories:** Developer tools, Automation
- **Stats:** 2 total users, 0 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $1.50 / 1,000 results

This Actor is paid per event and usage. You are charged both the fixed price for specific events and for Apify platform usage.

Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#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 Scraper

An [Apify Actor](https://apify.com) that scrapes prediction market data from [Polymarket](https://polymarket.com) using the public Gamma API.

### Features

- Fetches markets from Polymarket's Gamma API (no authentication required)
- Extracts: title, outcomes, yes/no prices, volume, liquidity, end date, event category, and URL
- Filter by minimum volume, minimum liquidity, category, or keyword search
- Supports both active and closed markets (configurable)
- Outputs structured JSON to Apify dataset

### API Endpoints Used

- `GET https://gamma-api.polymarket.com/markets?limit=50&closed=false` — Fetch markets
- `GET https://gamma-api.polymarket.com/events?limit=20&closed=false` — Fetch events (for category/tag data)

The Polymarket Gamma API is **public** and does not require any authentication.

### Input Schema

| Field | Type | Default | Description |
|-------|------|---------|-------------|
| `limit` | integer | 100 | Max markets to fetch (max 500) |
| `minVolume` | number | 0 | Minimum volume in USD |
| `minLiquidity` | number | 0 | Minimum liquidity in USD |
| `category` | string | "" | Filter by category/event name (case-insensitive substring match) |
| `keyword` | string | "" | Filter by keyword in market title (case-insensitive substring match) |
| `onlyActive` | boolean | true | Only fetch active (non-closed) markets |

### Output Data

Each dataset item contains:

| Field | Type | Description |
|-------|------|-------------|
| `title` | string | Market question/title |
| `outcomes` | string | Comma-separated list of outcomes (e.g., "Yes, No") |
| `yes_price` | number | Current price of the "Yes" outcome in USD |
| `no_price` | number | Current price of the "No" outcome in USD |
| `volume` | number | Total trading volume in USD |
| `liquidity` | number | Current liquidity in the market in USD |
| `end_date` | string | Market resolution end date (ISO 8601) |
| `category` | string | Event/hub title that the market belongs to |
| `url` | string | Polymarket URL for the market |

### Example Input

```json
{
    "limit": 50,
    "minVolume": 10000,
    "category": "politics",
    "onlyActive": true
}
```

### Local Development

```bash
## Install dependencies
pip install -r requirements.txt

## Run locally
apify run
```

### Deployment

```bash
## Push to Apify platform
COPYFILE_DISABLE=1 apify push
```

# Actor input Schema

## `limit` (type: `integer`):

Maximum number of markets to fetch per API call. Polymarket allows up to 500 per page.

## `minVolume` (type: `number`):

Only include markets with volume at or above this threshold in USD. Leave empty for no filter.

## `minLiquidity` (type: `number`):

Only include markets with liquidity at or above this threshold in USD. Leave empty for no filter.

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

Filter markets by category (e.g., 'politics', 'sports', 'crypto', 'science'). Case-insensitive substring match. Leave empty for all categories.

## `keyword` (type: `string`):

Filter markets by keyword in the title or question. Case-insensitive substring match. Leave empty for all markets.

## `onlyActive` (type: `boolean`):

If true, only fetch active (open) markets. If false, include closed markets too.

## Actor input object example

```json
{
  "limit": 100,
  "minVolume": 0,
  "minLiquidity": 0,
  "onlyActive": true
}
```

# 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("supermiojo/polymarket-scraper").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("supermiojo/polymarket-scraper").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"])
for item in client.dataset(run["defaultDatasetId"]).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 supermiojo/polymarket-scraper --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "command": "npx",
            "args": [
                "mcp-remote",
                "https://mcp.apify.com/?tools=supermiojo/polymarket-scraper",
                "--header",
                "Authorization: Bearer <YOUR_API_TOKEN>"
            ]
        }
    }
}

```

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/yLyBmk0Gmd7NclovM/builds/Z4TS52RqLWTbw7fRh/openapi.json