Cost to Build an AI Document Parsing App

The system shall allow visitors to create accounts using email-based registration and secure account-creation workflows.

MVP assumes email registration; email verification and password recovery are included as standard account capabilities.

The system shall allow registered users to sign in securely and maintain authenticated sessions for accessing their account and documents.

Standard password authentication and secure session handling are assumed.

The system shall allow authenticated customers to upload supported PDF and image documents for processing.

MVP supports common PDF and image formats and English-language business documents.

The system shall process uploaded documents asynchronously and display queued, processing, completed, or failed statuses for each document.

Processing status shall be persisted and associated with the customer document.

The system shall provide an in-app notification when document processing is completed or fails.

MVP notifications are limited to in-app delivery.

The system shall extract invoice and receipt data from uploaded documents using provider-configured extraction templates.

Customers cannot create or edit extraction schemas in the MVP.

The system shall allow authorized reviewers to view extracted document data and the associated source document before export.

Every extracted document requires human review before export.

The system shall allow authorized reviewers to correct extracted field values within the configured invoice or receipt template.

Corrections shall be saved as the final values for the document record.

The system shall allow customers to export reviewed document data in CSV or JSON format.

Only reviewed documents are eligible; selected or available reviewed records may be exported.

The system shall allow customers to view their active subscription and document-volume tier.

MVP assumes monthly subscriptions with predefined document-volume tiers.

The system shall allow customers to manage their subscription, including applicable plan changes and billing management.

Billing management is limited to standard US customer subscription operations.

The system shall retain customer documents and extracted data while the account remains active and make them available for review and export.

Retention continues until customer deletion or account closure, subject to legal requirements.

The system shall allow customers to delete documents and associated extracted data.

Immediate hard deletion is assumed where legally permitted.

The system shall allow customers to delete their account and associated data where legally permitted.

Deletion shall follow applicable US privacy and compliance requirements.

The system shall allow internal administrators to configure the invoice and receipt extraction templates available to customers.

Template administration is provider-controlled and outside the customer-facing schema editor.

The system shall protect authentication credentials, sessions, uploaded documents, and extracted data using industry-standard security controls.

TLS, secure password storage, and least-privilege access are assumed.

The system shall enforce role-based access so customers, reviewers, and internal administrators can access only permitted functions and data.

Customer data shall be isolated between accounts.

The system shall target API response times below 200 milliseconds for routine synchronous requests, excluding asynchronous document-processing time.

Performance target applies under expected MVP operating load.

The system shall use a managed database platform capable of scaling with customer, document, and extraction-record volume.

Supabase managed database infrastructure is the baseline assumption.

The system shall preserve document-processing state and expose failed processing outcomes without silently losing uploaded documents or extracted records.

Retry behavior and operational recovery procedures require implementation definition.

The system shall provide application performance monitoring and operational visibility for key user and processing flows.

Firebase Performance Monitoring is the baseline observability assumption.

The system shall support applicable US privacy and compliance obligations for account, document, extracted-data retention, and deletion workflows.

Specific regulatory scope and retention exceptions require confirmation during solution design.

Build a responsive web application using Next.js, React, TypeScript, Tailwind CSS, and shadcn/ui for customer and reviewer workflows.

MVP is web-based; no mobile application is included.

Use Supabase Auth for email registration, email verification, password recovery, secure sign-in, JWT-based sessions, and session lifecycle management.

SSO and social login are excluded unless added later.

Implement role-based access control for customers, reviewers, and internal administrators, with tenant isolation enforced at the database and API layers.

Supabase Row Level Security is the baseline authorization control.

Implement a REST-oriented backend using Supabase-managed services, PostgreSQL access, and optional edge functions for asynchronous or secured server-side workflows.

No endpoint-level design is required at this stage.

Use Supabase managed PostgreSQL for accounts, roles, documents, processing states, extraction records, templates, corrections, notifications, subscriptions, and audit metadata.

Schema design should support tenant isolation, soft operational states, and deletion workflows.

Store uploaded PDFs and images in managed object storage and process them asynchronously through a worker or edge-function workflow with persisted queued, processing, completed, and failed states.

OCR or extraction provider selection remains implementation-dependent.

Integrate provider-configured invoice and receipt templates with an extraction workflow that presents source documents and extracted fields for reviewer validation and correction.

Customers cannot create or edit templates in the MVP.

Provide authenticated screens for document upload, document lists, processing status, in-app notifications, extraction review, corrections, and CSV or JSON export.

Only reviewed records can be exported.

Provide a protected Next.js administrative panel for internal administrators to manage invoice and receipt extraction templates and associated configuration.

Administrative access must be separately authorized and audited.

Provide subscription and document-volume tier visibility, plan management, and billing-management integration through a selected payment provider compatible with US web subscriptions.

Provider, tax handling, invoicing, and webhook details require implementation definition.

Host the web application and admin panel on Vercel, use Supabase for managed backend infrastructure, and separate development, staging, and production environments.

Production data and credentials must not be shared with non-production environments.

Use GitHub Actions for validation and deployment pipelines with automated unit, integration, and end-to-end tests before production release.

Include database migration checks and deployment rollback procedures.

Apply HTTPS with TLS 1.2 or later, secure password storage through Supabase Auth, encrypted storage and transport, least-privilege access, secret management, input validation, and tenant isolation.

Security controls align with the reference stack and approved security requirements.

Implement document and extracted-data retention, customer-initiated deletion, account deletion, and provider-controlled cleanup workflows subject to legal holds, backups, and statutory requirements.

Deletion must cover source files, extracted records, derived data, and relevant metadata where permitted.

Implement persisted in-app notifications for completed and failed document processing, linked to the relevant customer document and status.

Push, email, and SMS notifications are outside the MVP.

Implement centralized application and processing logs, error tracking, performance monitoring, audit events for privileged actions, and operational dashboards for key workflows.

Firebase Performance Monitoring is the baseline observability assumption.

Ensure uploaded documents and processing state are durable, expose failures to users, support controlled retries, and prevent duplicate processing or duplicate exports.

Retry limits, queue technology, and recovery runbooks require implementation definition.