Supported document type
Invitation Letter
An invitation letter provides the necessary details for visa applications by confirming the purpose of a visit from an authorised host. Authorities require these to validate the relationship and intent behind the travel request.
API slug: invitation_letter
TamperCheck analyses invitation 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.