Supported document type
Sponsor Letter
A sponsor letter is an official document outlining a commitment of financial support for an individual. It is commonly submitted for visa applications to prove the availability of funds for travel.
API slug: sponsor_letter
TamperCheck analyses sponsor letter uploads with a hybrid forensic and AI pipeline tuned for this document class. Upload endpoints accept PDF and common image formats; class is inferred automatically. See the API documentation for authentication, async jobs, and webhooks.