# Reddit Subreddit Monitor (`second_coming/reddit-subreddit-monitor`) Actor

Monitor and scrape Reddit posts and comments from specified subreddits using the public Reddit JSON API. Features include keyword filtering, sentiment analysis, trending topic detection, and engagement metrics.

- **URL**: https://apify.com/second\_coming/reddit-subreddit-monitor.md
- **Developed by:** [Richard P](https://apify.com/second_coming) (community)
- **Categories:** Social media, News, AI
- **Stats:** 2 total users, 1 monthly users, 90.5% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

$0.02 / scan run

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/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

# Actor input Schema

## `subreddits` (type: `array`):

List of subreddit names to monitor (without the r/ prefix)

## `keywords` (type: `array`):

Optional keywords to filter posts. If empty, all posts are included. Posts must contain at least one keyword (case-insensitive).

## `sort` (type: `string`):

How to sort subreddit posts

## `timePeriod` (type: `string`):

Time period filter when using 'top' sort order

## `maxResults` (type: `integer`):

Maximum number of posts to fetch per subreddit

## `includeComments` (type: `boolean`):

Whether to fetch and include top comments for each post

## `maxComments` (type: `integer`):

Maximum number of top-level comments to fetch per post (only used if Include Comments is enabled)

## `minScore` (type: `integer`):

Only include posts with at least this many upvotes. Set to 0 to include all posts.

## `includeTrendingWords` (type: `boolean`):

Whether to include trending word analysis in the output summary

## Actor input object example

```json
{
  "subreddits": [
    "technology",
    "programming",
    "MachineLearning"
  ],
  "keywords": [
    "AI",
    "python",
    "machine learning"
  ],
  "sort": "hot",
  "timePeriod": "day",
  "maxResults": 50,
  "includeComments": true,
  "maxComments": 10,
  "minScore": 0,
  "includeTrendingWords": true
}
```

# 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("second_coming/reddit-subreddit-monitor").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("second_coming/reddit-subreddit-monitor").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 second_coming/reddit-subreddit-monitor --silent --output-dataset

```

## MCP server setup

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

```

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/Lh6gnPZFbGlEVDWWW/builds/WxgDC314XeYCif0Vf/openapi.json