Build a White-Labeled Web App Powered by Claude AI (Anthropic API)

I'm looking for a developer to build a web application that works exactly like Claude.ai (Anthropic's chat interface), but fully white-labeled under my own branding. How it should work: - User asks a question in my platform's interface - The platform sends the query to Claude via the Anthropic API - Claude's response is displayed back to the user inside my platform - No visible reference to "Claude" or "Anthropic" anywhere in the UI - fully white-labeled Core functionality (matching Claude.ai's experience): - Clean chat interface for asking questions and getting answers - Persistent chat history per user - User accounts / login system - File upload support (so users can upload documents/images and ask questions about them, same as Claude.ai) - Responsive web design Tech expectations: - Integration with the Anthropic API (I will provide the API key) - Secure handling of API keys and user data - Clean, modern, branded front-end (branding assets/guidelines will be provided) What I need from you: - A brief proposal on your intended tech stack - Relevant experience with LLM API integrations (Anthropic, OpenAI, or similar) or chat-based SaaS products - Rough timeline and cost estimate for the project Budget: Please quote based on scope described above.