Facial Search APIs in Investigations & Law Enforcement

What is Facial Search?

Facial recognition is a technology that finds images of the person online based on a photo of their face. It’s like a reverse image search, but for faces specifically.

How does Face Search differ from Reverse Image Search?

Reverse Image Search is trained to recognize similar and identical images. Instead of looking for the same person, it looks for people in similar poses, with similar features or similar backgrounds.

Facial Search looks for specific facial features and matches them to find specific people. It prioritizes similarity in facial features, rather than the whole image.

Who uses facial search for investigations?

Facial search is already used by sectors such as:

1. Federal law enforcement agencies
2. Local and state police departments
3. Border control and immigration agencies
4. Intelligence and national security agencies
5. International law enforcement organizations

What is a face search API?

Face Search API is a technology that allows any application to add facial search to their catalogue without making a face search tool from scratch. With the API, any company or an individual can add facial search to their own system, application or software, with no need to create their own image index or facial recognition machine learning model.

It takes just a couple of lines of code instead of an extensive and costly software to be able to utilize face search in any application.

Best Face Search API Solutions in 2026

We present two face-search-based applications, each created with a different use-case in mind.

Lenso.ai Face Search

Lenso.ai is an effective facial search tool for companies interested in finding faces online and conducting their own investigations.

What does lenso.ai’s API offer?

• Facial search
• General reverse image search
• Finding people online and returning sources (where the images appeared)
• Sorting and filtering options for easy search - sorting by dates, filtering by domains and keywords, and more

Additionally, with the Developer subscription, you get:

• 5000 unlocks on the main page
• Research Mode
• Advanced Filters (domain, language, date, keyword, size) …and more!

Pixalytica

Pixalytica combines facial recognition with artificial intelligence to create full reports on any person based on a photo of their face.

What does Pixalytica’s API offer?

• Full reports on any person
• Images of a person with online sources
• Information about criminal activity
• Data on high-risk industries the person partook in
• Affiliations with other people
• Information on political activity (PEP) …and more!

Try Pixalytica!

Pixalytica’s demo is free! Try it out:

Face Search API in Law Enforcement - Why is it needed?

Face Search API make the work in law easier - from finding images of any person online to creating full reports on anyone with summary and risk score. If you are interested in learning more about Lenso.ai’s or Pixalytica’s solutions, reach out to us now!