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GET
https://www.osintcat.net
/
api
/
email-osint
Email OSINT
curl --request GET \
  --url https://www.osintcat.net/api/email-osint
Discover which websites an email address is registered on.
Purpose Identification Required: This endpoint requires you to specify the purpose/reason for your OSINT search. You can provide this in 4 different ways (in order of priority):
  1. Query Parameter: ?purpose=Your%20Purpose
  2. X-Purpose Header: X-Purpose: Your Purpose
  3. Purpose Header: Purpose: Your Purpose
  4. User-Agent Header: Include Purpose: Your Purpose within the User-Agent string

​
Parameters

​
query
string
required
Email address to investigate
​
purpose
string
Purpose/reason for the OSINT search (can also be provided via headers)
​
id
string
required
Your API key

​
Headers

​
X-Purpose
string
Alternative way to provide the purpose (takes priority over query parameter)
​
Purpose
string
Alternative way to provide the purpose
​
User-Agent
string
Can include Purpose: Your Purpose within the User-Agent string

​
Response

Returns information about websites where the email address is registered.

​
Example Request

# Using query parameter
curl "https://www.osintcat.net/api/[email protected]&id=YOUR_API_KEY&purpose=Security%20Research"

# Using header
curl -H "X-Purpose: Security Research" "https://www.osintcat.net/api/[email protected]&id=YOUR_API_KEY"