# Chui / Trueface > Chui (now operating as Trueface, part of BigBear.ai) is a facial recognition and computer vision company. It provides on-device and on-premises face recognition, spoof/liveness detection, object detection, and identity verification via a licensed SDK (C++, Python, Android, iOS bindings) and a Dockerized REST API (Trueface On-Prem / PTOP). Originally launched as "Chui," the world's first faceprint API, the technology is distributed today under the Trueface brand. Notes: - No public OpenAPI/Swagger specification is published; the REST surface (Trueface On-Prem) ships as a self-hosted Docker container. - The developer SDK is licensed/gated (not a public package-registry download); GitHub hosts sample apps and tooling under the getchui org. - This llms.txt was generated by the API Evangelist enrichment pipeline from public pages; it is not a provider-published file. ## Docs - Documentation: https://docs.trueface.ai/ - SDK overview: https://trueface.ai/our-technology/sdk - Trueface On-Prem (REST API): https://trueface.ai/our-technology/api - Sample apps (GitHub): https://github.com/getchui/sample-apps ## Developers - GitHub organization: https://github.com/getchui - Chui-API (control Chui devices): https://github.com/getchui/Chui-API ## Company - Website: https://trueface.ai - About: https://trueface.ai/about-us - Contact / Support: https://bigbear.ai/contact/ - Terms of Service: https://trueface.ai/terms-of-service - Privacy Policy: https://trueface.ai/privacy-policy