Bulk Social Handle Checker

More Social Platforms

Operated by Sourcelane✓ verified

A bulk social-handle verification tool for Instagram, TikTok and X that checks large lists of usernames or profile URLs in a single run. It determines existence and status (active, private, not found, error), reports whether an account is private, captures live follower/following/post counts, and extracts profile metadata such as display name, bio, verification state, profile photo and any external link. The connector returns a stable numeric platform identifier and an exact UTC timestamp for each handle, emits one record per input handle (including failures), detects username renames by comparing the current platform-reported handle to the input, and supports mixing platforms freely in the same batch.

Verified Sep 28, 12:10 AM

$0.005

per handle

Up to 100 per call. Only pay for results returned; failed calls are refunded.

What people use it for

Influencer list hygiene — re-verify a creator list before a campaign, and catch the accounts that vanished
CRM and lead enrichment — confirm the social handles on your contact records still resolve, and refresh follower counts
Campaign monitoring — track follower growth across a roster of creators by re-running on a schedule and comparing exports
Fraud and impersonation checks — confirm whether a handle exists and is verified before paying or partnering
Username availability sweeps — bulk-check whether a set of handles is taken across all three platforms at once
Deleted account detection — find which accounts in a historical results are gone

Trust & reliability

7d uptime trend

Window	Uptime	Success rate	p50	p95
24h	—	—	—	—
7d	—	—	—	—
30d	—	—	—	—

Calling contract

Call it through Sourcelane's gateway or MCP server. We run the connector, apply your agent's spend guardrails, and bill only the results returned.

Call it via Sourcelane

curl -X POST https://cool-puffin-608.convex.site/v1/call \
  -H "Authorization: Bearer sl_live_your_agent_key" \
  -H "Content-Type: application/json" \
  -d '{"listing":"social-handle-status-checker","params":{"handles":["natgeo","https://www.tiktok.com/@nasa","https://x.com/nasa"]},"maxResults":10}'

Request params

Field	Type	Required	Description
`handles`	array	required	Usernames or profile URLs to check, one per line. Bare usernames use the Default platform below; full profile URLs are detected automatically, so Instagram, TikTok and X can be mixed freely in one run.
`platform`	string	optional	Which platform to check bare usernames against. Entries given as full profile URLs ignore this and use their own platform.
`delayMs`	integer	optional	Optional pause between individual checks, in milliseconds. Leave at 0 for the fastest run.

Each result contains

Field	Type	Description
`inputHandle`	string	Input Handle
`platform`	string	Platform
`checkedAt`	string	Checked At
`username`	string	Username
`status`	string	Status
`exists`	boolean	Exists
`isPrivate`	boolean	Is Private
`isVerified`	boolean	Is Verified
`userId`	string	User Id
`displayName`	string	Display Name
`bio`	string	Bio
`followerCount`	integer	Follower Count
`followingCount`	integer	—
`postCount`	integer	—
`profileUrl`	string	—
`profilePicUrl`	string	—
`externalUrl`	string	—
`error`	null	—

Use Bulk Social Handle Checker from Claude, ChatGPT or Cursor

Pick your tool and connect in under a minute. Then just ask — for example: “Find this creator's profiles on every social network and summarise their reach.”

Connect Claude

Web, desktop and mobile. Paste one URL.

1Copy your personal connector URL
2In Claude open Settings → Connectors → Add custom connector
3Paste the URL and click Add — done

Manual setup (config files, REST, Python) +

Claude Code

Adds the Sourcelane MCP server with your key as a header.

terminal

claude mcp add --transport http sourcelane https://cool-puffin-608.convex.site/mcp \
  --header "Authorization: Bearer sl_live_your_agent_key"

Claude Desktop (config file)

Alternative to the connector URL: add to claude_desktop_config.json, then restart Claude.

claude_desktop_config.json

{
  "mcpServers": {
    "sourcelane": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://cool-puffin-608.convex.site/mcp",
        "--header",
        "Authorization:${AUTH_HEADER}"
      ],
      "env": {
        "AUTH_HEADER": "Bearer sl_live_your_agent_key"
      }
    }
  }
}

Cursor & Windsurf

Add to ~/.cursor/mcp.json (or Windsurf's mcp_config.json).

mcp.json

{
  "mcpServers": {
    "sourcelane": {
      "url": "https://cool-puffin-608.convex.site/mcp",
      "headers": {
        "Authorization": "Bearer sl_live_your_agent_key"
      }
    }
  }
}

VS Code

Save as .vscode/mcp.json. VS Code prompts for your key once.

.vscode/mcp.json

{
  "servers": {
    "sourcelane": {
      "type": "http",
      "url": "https://cool-puffin-608.convex.site/mcp",
      "headers": {
        "Authorization": "Bearer ${input:sourcelane-key}"
      }
    }
  },
  "inputs": [
    {
      "type": "promptString",
      "id": "sourcelane-key",
      "description": "Sourcelane agent key",
      "password": true
    }
  ]
}

ChatGPT Custom GPT (Actions)

Create a GPT → Actions → Import from URL, then Authentication: API Key, Bearer.

OpenAPI schema URL

https://sourcelane-amber.vercel.app/openapi.json

REST

One POST. Pass maxResults to cap cost.

curl

curl -X POST https://cool-puffin-608.convex.site/v1/call \
  -H "Authorization: Bearer sl_live_your_agent_key" \
  -H "Content-Type: application/json" \
  -d '{"listing":"social-handle-status-checker","params":{"handles":["natgeo","https://www.tiktok.com/@nasa","https://x.com/nasa"]},"maxResults":10}'

Python, LangChain, CrewAI, OpenAI Agents SDK…

Wrap the REST call as a tool, or point an MCP client at the endpoint.

python

import requests

res = requests.post(
    "https://cool-puffin-608.convex.site/v1/call",
    headers={"Authorization": "Bearer sl_live_your_agent_key"},
    json={
        "listing": "social-handle-status-checker",
        "params": {"handles":["natgeo","https://www.tiktok.com/@nasa","https://x.com/nasa"]},
        "maxResults": 10,
    },
    timeout=300,
)
body = res.json()
print(body["receipt"]["chargedMicros"], "micro-USD for", body["receipt"]["results"], "results")
print(body["data"])

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