Architecture · auto-financing onboarding · client portal

From customer browser to underwriting-ready payload

OUR PLATFORM HTTPS tRPC CALL EXTRACT EXTRACT FIELDS SIGN UNDERWRITE USER Customer browser · mobile-first WEB Client Portal Next.js 16 · App Router BFF Hono BFF edge runtime · GraphQL out ROUTER DocFields.ai Engine multi-provider · fallback CLOUD Document AI 24 EU processors CLOUD Vision Models Anthropic · OpenAI GUARD Conflict Checker cross-document fields STORE Attestation Log append-only · per field OUT Underwriting Payload decision-ready JSON No human keystroke between document upload and the underwriting payload. Every field carries provenance: which document, which model, which confidence tier. LEGEND Focal · orchestrator / output Internal service Store External AI provider External API call Underwriting handoff Trust boundary