# Reddit Username Checker (`maged120/reddit-username-checker`) Actor

Checks whether Reddit usernames are available or already taken.

- **URL**: https://apify.com/maged120/reddit-username-checker.md
- **Developed by:** [Maged](https://apify.com/maged120) (community)
- **Categories:** Automation, Lead generation, Social media
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $7.00 / 1,000 results

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.
Since this Actor supports Apify Store discounts, the price gets lower the higher subscription plan you have.

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

## Reddit Username Checker

**Bulk-check whether Reddit usernames are available or already taken.** Feed in a list of usernames and get back a clean, structured result for each one — available or not. Duplicates and invalid names are filtered out automatically, so you never waste a check.

### What does Reddit Username Checker do?

This Actor takes a list of [Reddit](https://www.reddit.com) usernames and tells you, for each one, whether it can still be registered. It runs entirely on the [Apify platform](https://apify.com), so you get API access, scheduling, integrations, proxy rotation, and run monitoring out of the box — no browser or local setup required.

### Why use Reddit Username Checker?

- **Brand protection** — confirm your brand or product name is still free before someone else takes it.
- **Username hunting** — find short, clean, or on-brand usernames that are still available.
- **Bulk research** — check hundreds of names in one run instead of typing them one by one.
- **Automation** — schedule recurring checks and wire the results into your own tools via the API.

### How to use Reddit Username Checker

1. Open the Actor and go to the **Input** tab.
2. Paste your list of usernames (one per line). The `u/` or `@` prefix is optional and case doesn't matter.
3. Keep the **residential proxy** setting on (recommended).
4. Click **Start** and wait for the run to finish.
5. Download your results from the **Output** tab.

### Input

| Field | Description |
| --- | --- |
| **Usernames to Check** | The list of usernames to verify (up to **1000** per run). `u/` and `@` prefixes are optional, case is ignored, and duplicates are removed before checking. Unique names beyond the first 1000 are skipped. |
| **Proxy Configuration** | Proxy settings. **Residential proxies are strongly recommended** — Reddit blocks datacenter traffic. |

Example input:

```json
{
    "usernames": ["spez", "my_cool_unclaimed_name_2026", "u/SomeBrand"],
    "proxyConfiguration": { "useApifyProxy": true, "apifyProxyGroups": ["RESIDENTIAL"] }
}
```

### Output

Each username becomes one row in the dataset. You can download the dataset in various formats such as JSON, HTML, CSV, or Excel.

```json
[
    {
        "username": "spez",
        "available": false,
        "error": null
    },
    {
        "username": "my_cool_unclaimed_name_2026",
        "available": true,
        "error": null
    }
]
```

#### Data table

| Field | Type | Description |
| --- | --- | --- |
| `username` | text | The normalized username that was checked. |
| `available` | boolean | `true` if the username can be registered, `false` if taken, `null` if it couldn't be checked. |
| `error` | text | Populated only for invalid usernames or names that couldn't be checked. |

### How much does it cost?

Cost scales with the size of your list — you're billed per result, and each username produces exactly one result. Duplicate and invalid names are filtered before any checks run, so you only pay for real, unique names.

### Tips

- Keep the default **residential proxy** setting on — Reddit is aggressive about blocking non-residential traffic.
- If you see rows with an `error`, re-run just those usernames.
- Valid Reddit usernames are 3-20 characters, letters, numbers, underscores, and hyphens only — anything else is flagged as invalid without spending a check.

### FAQ, disclaimers, and support

**Is this legal?** The Actor only checks public username availability — the same information anyone sees on the Reddit signup form. It does not access private data or log into any account. You are responsible for complying with Reddit's Terms of Service and applicable laws.

**Why is a username marked unavailable when the profile doesn't exist?** Reddit reserves many names (banned, deleted, or held) even when no public profile is visible. Availability reflects whether the name can be registered, not whether a profile currently exists.

Found a bug or need a custom version? Open an issue on the Actor's **Issues** tab and we'll take a look.

# Actor input Schema

## `usernames` (type: `array`):

Reddit usernames to check (up to 1000 per run). The u/ or @ prefix is optional and case is ignored. Duplicates are removed automatically before checking, and any usernames beyond the first 1000 unique ones are skipped.

## `proxyConfiguration` (type: `object`):

Proxy settings. Residential proxies are strongly recommended — Reddit blocks datacenter traffic.

## Actor input object example

```json
{
  "usernames": [
    "spez",
    "reddit",
    "my_cool_unclaimed_name_2026"
  ],
  "proxyConfiguration": {
    "useApifyProxy": true,
    "apifyProxyGroups": [
      "RESIDENTIAL"
    ]
  }
}
```

# Actor output Schema

## `dataset` (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 = {
    "usernames": [
        "spez",
        "reddit",
        "my_cool_unclaimed_name_2026"
    ],
    "proxyConfiguration": {
        "useApifyProxy": true,
        "apifyProxyGroups": [
            "RESIDENTIAL"
        ]
    }
};

// Run the Actor and wait for it to finish
const run = await client.actor("maged120/reddit-username-checker").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 = {
    "usernames": [
        "spez",
        "reddit",
        "my_cool_unclaimed_name_2026",
    ],
    "proxyConfiguration": {
        "useApifyProxy": True,
        "apifyProxyGroups": ["RESIDENTIAL"],
    },
}

# Run the Actor and wait for it to finish
run = client.actor("maged120/reddit-username-checker").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 '{
  "usernames": [
    "spez",
    "reddit",
    "my_cool_unclaimed_name_2026"
  ],
  "proxyConfiguration": {
    "useApifyProxy": true,
    "apifyProxyGroups": [
      "RESIDENTIAL"
    ]
  }
}' |
apify call maged120/reddit-username-checker --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,maged120/reddit-username-checker"
        }
    }
}

```

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/ZhBLKJ7bOQouaXJ4M/builds/ucz7gdR4HIoVJpV2b/openapi.json