You can see our docs and try our API for free here: https://gptzero.stoplight.io
Last updated: September 11, 2025
An API, in full application programming interface, is a set of rules that enables two applications to communicate with or integrate with each other.
The GPTZero API integrates with your existing system to detect whether text was generated by AI. We accept both files and text input, and return probabilities on the sentence, paragraph, and document level.
With the GPTZero API, you can:
You can see our docs and try our API for free here: https://gptzero.stoplight.io