Username Checker — Find a Username on 600+ Sites (OSINT)

🇨🇳 用户名查询工具：在 600 多个网站和社交平台（GitHub、Reddit、Twitch、Steam、Medium 等）上批量检测用户名，返回所有找到的个人主页链接。基于开源 WhatsMyName 规则，适用于 OSINT 与品牌保护。不确定的结果会如实标注。无需登录和 API 密钥，按用户名付费。

🇸🇬 Penyemak Nama Pengguna: cari satu atau banyak nama pengguna di lebih 600 laman web dan rangkaian sosial dan dapatkan setiap URL profil yang ditemui. Alat OSINT dan perlindungan jenama. Tiada log masuk, tiada kunci API.

🤖 NEW: Connect This To Your AI!

Use this actor from Claude, ChatGPT, Cursor or any MCP client through the IntelScrape MCP Server, or call it directly over the Apify API.

🏆 Featured Bots by IntelScrape

• Skip Trace Pro
• TruePeopleSearch Scraper
• TikTok Email Scraper
• Amazon Product Reviews Scraper
• Website Contact Scraper
• Skip Trace MCP Server

⚡ Works with n8n, Make, Zapier, Google Sheets and the Apify API.

Find where a username exists across 600+ sites in about 20–60 seconds, with confirmed profile URLs and honest "uncertain" labels.

Honest coverage & billing: A matching username does not mean the same person owns every account. You pay only for results actually delivered, and a built-in cost guard stops the run at your max-charge limit.

🌍 Built for teams in the US, China and Singapore, and anyone who needs this data in a spreadsheet or pipeline.

⭐ Found it useful? Please leave a review; it helps others find it.

⚖️ Lawful business use only. Collect public data only, and comply with the source site's terms, copyright and data-protection laws (GDPR, CCPA, China PIPL, Singapore PDPA).

Examples below are illustrative; names and values may be fictional or out of date.

What is Username Checker?

Usernames are reused everywhere. Username Checker takes one or many usernames and checks each one against 600+ websites, from GitHub, Steam and Twitch to Patreon, Medium and niche forums, then returns a clean list of profile URLs where the username exists. It is built on the community-maintained WhatsMyName detection rules (CC BY-SA 4.0), which require both the right HTTP status and a page fingerprint before calling a profile "found".

What does it do?

• 600+ sites across social, coding, gaming, finance, music, business, shopping, art and more
• Bulk: up to 200 usernames per run, each checked against every selected site
• Strict detection: a profile counts as found only when the status code and the page fingerprint both match the WhatsMyName rule
• Summary row per username: sites checked, profiles found, not found and uncertain, plus the list of sites and categories
• Category filter: e.g. only social, coding or gaming sites
• Safe defaults: adult sites and bot-protected sites are excluded unless you turn them on
• Uncertain results on request: see which sites timed out or blocked the check (never charged)

Why choose us over cheaper scrapers?

• Honest output: limits are documented, missing data is labeled, never invented
• Clean, consistent schema ready for Excel, Sheets, BI tools or an LLM
• No account risk: no logins, no cookies, no API keys
• Pay per result with a built-in cost guard; no subscription, failed items are never charged
• Fast and light: no browser, no residential proxy, so runs finish in seconds and stay cheap
• Maintained by IntelScrape and fixed fast when the source changes

Who is it for?

• Brand protection: check whether your brand or product name is taken or impersonated across platforms
• Username availability: see where a handle is still free before launching a brand
• OSINT and investigations: map the public footprint of a handle as part of lawful research
• Trust & safety and fraud teams: check reused handles linked to abuse reports
• Recruiters and community managers: find a known contact's public developer or creator profiles (GitHub, GitLab, Dribbble, Behance)
• Security awareness: show employees how visible their reused usernames are

How to use it

In Apify Console (no code)

1. Click Try for free / Start. The form is prefilled with a working example.
2. Change the inputs (see examples below).
3. Click Start, then export the results as JSON, CSV, Excel, XML or HTML, or open them in Google Sheets.
4. Optional: Schedule the actor to run hourly, daily or weekly.

Via API

curl -X POST "https://api.apify.com/v2/acts/intelscrape~username-checker/run-sync-get-dataset-items?token=YOUR_APIFY_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"usernames": ["torvalds"]}'

Or use the official Apify JavaScript and Python clients:

from apify_client import ApifyClient
client = ApifyClient("YOUR_APIFY_TOKEN")
run = client.actor("intelscrape/username-checker").call(run_input={"usernames": ["torvalds"]})
for item in client.dataset(run["default_dataset_id"]).iterate_items():
    print(item)

With AI agents (MCP)

Add Apify's MCP server (https://mcp.apify.com) or the IntelScrape MCP Server to Claude Desktop, Cursor, ChatGPT or any MCP client, then ask in plain language, e.g. "Run intelscrape/username-checker with the default input and summarise the results."

Input examples

One username (default)

{
  "usernames": ["torvalds"]
}

Several usernames, coding and social only

{
  "usernames": ["mybrand", "mybrand_official"],
  "categories": ["social", "coding"]
}

Include uncertain checks for review

{
  "usernames": ["example_handle"],
  "includeUncertain": true
}

Output fields

Field	Description
type	profile, uncertain or summary
username	The username checked
site / category	Site name and category from WhatsMyName
profileUrl	Link to the public profile
status / httpStatus	found (or uncertain) and the HTTP status received
sitesChecked / profilesFound / notFound / uncertain	Totals on the summary row
foundOn / categoriesFound	Sites and categories where the username was found (summary row)
dataSource	Detection rules used (WhatsMyName, CC BY-SA 4.0)
checkedAt	Time of the check (ISO)

Sample output

{
  "type": "profile",
  "username": "torvalds",
  "site": "GitHub (Gists)",
  "category": "coding",
  "profileUrl": "https://gist.github.com/torvalds",
  "status": "found",
  "httpStatus": 200,
  "checkedAt": "2026-10-21T03:11:04.731Z"
}

Pricing (pay per event)

Event	When it is charged	Price
Actor start	once per run	$0.005
Username checked	per username, all selected sites	$0.02
Profile found	per confirmed profile URL	$0.001

Cost examples

Run	Cost
Default run: 1 username, ~90 profiles found	≈ $0.115
1 username with few accounts (~10 found)	≈ $0.035
100 usernames, ~15 found each	≈ $3.51

Platform usage is included in these prices. Set Max charge per run in the run options to cap spend; the actor stops cleanly when the limit is reached and keeps everything collected so far.

FAQ

Does a "found" profile prove it is the same person?

No. It proves the username exists on that site. Different people often use the same handle. Always verify before drawing conclusions.

Why are some sites "uncertain"?

Some sites block cloud servers, rate-limit, or changed their pages since the rule was written. Instead of guessing, those checks are labeled uncertain and are not counted or charged.

Which sites are checked?

The live WhatsMyName list (about 600 sites after defaults). Adult sites and Cloudflare/captcha-protected sites are excluded by default.

Do I need accounts on these sites?

No. Only public profile pages are requested, without login or cookies.

How long does it take?

Usually 20–60 seconds per username with the default 25 parallel checks.

Is this legal?

It reads public pages only. You are responsible for using results lawfully: no stalking, harassment, or decisions about people that require consumer-reporting compliance (e.g. FCRA).

Can I see the raw evidence?

Each found row includes the profile URL and HTTP status so you can open and verify it.

Honest limits

• A matching username does not mean the same person owns every account.
• Results depend on WhatsMyName rules; when a site changes its pages, a rule can briefly misfire until the community updates it.
• From cloud servers roughly 40–50% of sites typically give no clear answer (blocks, timeouts, changed pages); these are reported as uncertain, not as found or missing. In our tests a random non-existent username returned 0 false "found" results across 611 sites.
• Public pages only; private or deleted profiles cannot be confirmed.

Related IntelScrape bots

• Skip Trace Pro: people lookup
• Website Contact Scraper: emails, phones & socials from sites
• TikTok Email Scraper: creator & influencer leads
• PDF Text Extractor: PDF URLs to clean text & metadata
• Google Autocomplete Scraper: keyword suggestions from Google, YouTube, Amazon & Bing
• Skip Trace MCP Server: IntelScrape tools for AI agents

Legal

This actor collects publicly available data only. You are responsible for using the results lawfully and in line with the source's terms and applicable privacy laws (GDPR, CCPA, PIPL, PDPA). Process personal data only with a legitimate purpose. IntelScrape is not affiliated with, endorsed by or sponsored by the data source; all trademarks belong to their owners.