Instagram Username Availability Checker

Instagram

Operated by Sourcelane✓ verified

A bulk Instagram username availability checker that verifies lists of handles (hundreds at a time) without logging in and returns structured results per handle: a status label indicating available/taken/invalid/error, a plain‑English reason (including reserved‑word warnings), and owner profile metadata for taken names (identifier, display name, verification/private/business indicators, category and audience metrics such as follower/following/post counts, biography, external link and profile image). The connector detects names that violate Instagram naming rules, normalizes and deduplicates inputs before checking, can test common variant patterns to produce suggested free alternatives, and timestamps each check to support monitoring, research and bulk validation workflows.

Verified Sep 28, 12:10 AM

$0.004

per username

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

What people use it for

Brand and product naming: confirm desired handles before domain registration and trademark filing
Rebrands and launches: validate candidate usernames across markets in one run
Handle monitoring: track wanted usernames and detect when they become available
Agency onboarding: validate client-supplied handle lists and catch typos, dead accounts and impostors
Username research: identify who owns a name and assess audience size and profile metadata

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":"instagram-username-checker","params":{"usernames":["natgeo","my.brand.new.handle_2026"]},"maxResults":10}'

Request params

Field	Type	Required	Description
`usernames`	array	required	Instagram usernames to check, with or without @ (profile URLs work too). One availability check per entry. Duplicates are removed automatically.
`suggestAlternatives`	integer	optional	When a username is taken, also check up to this many alternative handles (e.g. name_, the.name, name.official, nameHQ) and report which of those are free. 0 disables suggestions. Each alternative checked counts as one result.
`includeProfileDetails`	boolean	optional	For taken usernames, include the current owner's display name, follower count, verification, privacy flag and profile picture in the result.

Each result contains

Field	Type	Description
`username`	string	Username
`status`	string	Status
`available`	boolean	Available
`reason`	string	Reason
`profileUrl`	string	Profile Url
`alternativeFor`	null	Alternative For
`userId`	string	User Id
`fullName`	string	Full Name
`isVerified`	boolean	Is Verified
`isPrivate`	boolean	Is Private
`isBusiness`	boolean	Is Business
`category`	string	Category
`followerCount`	integer	—
`followingCount`	integer	—
`mediaCount`	integer	—
`biography`	string	—
`externalUrl`	string	—
`profilePicUrl`	string	—
`checkedAt`	string	—

Use Instagram Username Availability Checker from Claude, ChatGPT or Cursor

Pick your tool and connect in under a minute. Then just ask — for example: “Pull the last 20 posts from @natgeo and tell me which formats get the most engagement.”

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":"instagram-username-checker","params":{"usernames":["natgeo","my.brand.new.handle_2026"]},"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": "instagram-username-checker",
        "params": {"usernames":["natgeo","my.brand.new.handle_2026"]},
        "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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