Single-server MCP integration
Connect to one external MCP server through Streamable HTTP and choose either `MCP_URL` or `MCP_APPS_URL`, with runtime rejection if both are set.
Overview
Chat is a general-purpose AI chat interface built for services that expose an MCP server. It is designed to let users interact with a domain-specific backend through normal conversation instead of a separate task form or dashboard.
The project is built with Next.js App Router, Vercel AI SDK v6, and Prisma v7. According to the README, it supports configurable branding and locale strings, streaming AI responses, image attachments, persistent conversation history, authentication, and optional integrations such as location sharing, weekly message limits, and background cleanup jobs.
Features
Deployment configuration
Customize the app name, AI persona context, and locale strings so the same codebase can be deployed for different services.
Streaming chat experience
Send and receive messages in real time with typing indicators, Markdown rendering, link detection, and optional LLM image output.
Image handling
Attach images with a mandatory crop step, compress them on send, and upload them to Cloudflare R2 only when the message is sent.
Conversation history
Keep chat records in persistent history with cursor-based pagination and infinite scroll for older conversations.
Multi-platform bot support
Support Telegram, WhatsApp, Slack, Teams, Google Chat, Discord, GitHub, and Linear through Chat SDK when the relevant environment tokens are present.
Use Cases
Domain-specific customer interaction
A service team can expose its backend through MCP and give users a chat interface for common requests, such as delivery, booking, or task workflows.
White-labeled deployments
An internal product team can reuse the same codebase across multiple deployments by changing the app name, persona context, and locale strings.
Multi-channel assistants
Operators can connect selected bot channels and serve the same LLM plus MCP workflow through messaging platforms such as Slack, Discord, Telegram, or GitHub.
Ongoing support conversations
Teams that need continuity can keep persistent conversation history with pagination and infinite scroll so older exchanges remain accessible.
Image-assisted chat workflows
Products that rely on visual context can let users attach images with cropping before send and have the assistant return image-based responses when needed.
Pros and Cons
Pros
- Built around MCP, so it fits services that expose structured tool access behind natural-language chat.
- Supports configurable branding, persona context, and locale strings for reuse across deployments.
- Includes real-time responses, Markdown rendering, image attachment handling, and persistent chat history.
- Extends beyond the web UI with bot targets such as Telegram, Slack, Discord, GitHub, and Linear when configured.
- Uses a standard GitHub repository and open-source licensing context, making the project inspectable and self-hostable.
Cons
- The README documents one MCP connection at a time, so it is not presented as a multi-server aggregator.
- Several capabilities are optional or environment-dependent, including some bot platforms, location mode v2, and external services such as Google Maps or Resend.
FAQ
What does Chat do?
It is a general-purpose AI chat interface that connects to a single MCP server and lets users talk to that service in natural language.
How does it connect to an MCP server?
The README lists MCP_URL for any backend or MCP_APPS_URL for TypeScript plus embedded UI. It accepts one of those connection modes at a time; setting both is rejected at runtime.
What core chat features are included?
The project includes email/password authentication with verification, password reset, email change, and Google OAuth, plus persistent conversation history and image attachments.
Does it support usage limits?
The repository supports optional per-user weekly message limits, and the README notes a warning banner when the limit is nearly reached and a 429 response when it is exhausted.
Can it be customized for different services?
The README says it can be deployed as one codebase for multiple deployments, with configurable app name, AI persona context, and locale strings.
Quick Facts
- Category
- AI Chat
- Source domain
- github.com
- Primary use
- Chat client for a service's MCP server
- Frameworks
- Next.js App Router, Vercel AI SDK v6, Prisma v7
- Auth
- Email/password and Google OAuth
- Hosting/storage
- Cloudflare R2 for image uploads
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