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butterbase

by butterbase-ai3.4kTypeScriptUpdated 2026-09-01

Open-source backend-as-a-service. Postgres, auth, storage, functions, AI gateway, MCP.

Claude CodeClaude Desktop

Butterbase is an open-source, AI-native backend-as-a-service platform that combines Postgres databases, authentication, serverless functions, file storage, and an AI gateway with integrated Model Context Protocol (MCP) support. It includes a Claude Code plugin containing over 30 guided skills that enable AI agents to autonomously scaffold, plan, and deploy full-stack applications from idea to production. The platform exposes every backend capability—data operations, row-level security, key-value storage, RAG, durable objects, and realtime subscriptions—as MCP tools that AI assistants can invoke directly without custom glue code.

Key Features

Claude Code plugin with 30+ guided skills for end-to-end AI-driven app development (idea → schema → auth → functions → deploy)
Built-in MCP server exposing all backend features as callable tools via HTTP (/mcp) or stdio
Postgres-backed data plane with automatic REST endpoints, row-level security policies, and declarative schema management
Serverless TypeScript functions on Deno runtime plus stateful durable objects for chat, multiplayer, and long-running agents
AI gateway with unified endpoint for chat, embeddings, and RAG (document ingestion, semantic search, synthesized answers)
Key-value store with TTL, audit trail, regional quota protection, and dashboard expose rules
Authentication system supporting email and OAuth (Google, GitHub, Apple, X) with JWT tuning and service keys
Self-hostable via Docker with Apache 2.0 license; managed cloud offering adds multi-region orchestration and billing

Use Cases

  • 01Building AI-powered applications with agents that autonomously create schemas, functions, and deploy features
  • 02Enabling Claude Code or other MCP clients to manage backend infrastructure through natural language commands
  • 03Developing multiplayer or chat applications using durable objects for stateful per-key actors
  • 04Implementing semantic search and retrieval-augmented generation workflows with managed RAG collections
  • 05Self-hosting a complete backend platform with Postgres, auth, storage, and serverless compute on your own infrastructure
  • 06Creating realtime collaborative UIs with WebSocket subscriptions to database table changes

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butterbase — FAQ

What is the Butterbase Claude Code plugin?+

The Butterbase plugin is a collection of over 30 guided skills that enable AI assistants to autonomously build full-stack applications by managing backend resources—creating schemas, configuring auth, writing serverless functions, and deploying—through conversational interactions. It's packaged as @butterbase/plugin and distributed via the butterbase-skills repository.

How do I install the Butterbase plugin for Claude Code?+

Clone the Butterbase repository with submodules using 'git clone --recurse-submodules https://github.com/butterbase-ai/butterbase.git' to include the plugin workspace at packages/plugin. The plugin is a git submodule of the butterbase-skills repository and requires the full backend stack running via Docker Compose for the skills to function.

Which AI clients work with Butterbase?+

The MCP server works with any MCP-compatible client including Claude Desktop and other tools supporting the Model Context Protocol via HTTP or stdio. The Claude Code plugin specifically targets Claude Code for guided skill-based workflows.

Do I need API keys or a managed account to use Butterbase?+

No API keys are required for self-hosting. The open-source distribution runs entirely on your infrastructure with Docker, Node.js 22+, and npm. The managed offering at butterbase.ai provides additional features like multi-region orchestration and upstream AI router adapters, but the core runtime is fully functional when self-hosted.

Is Butterbase free and open-source?+

Yes, Butterbase is licensed under Apache 2.0 and the entire runtime data plane is open-source. The self-hosted version includes all core features; the managed cloud offering adds proprietary orchestration, billing, and operations dashboards but the foundational platform remains free to use and modify.

What are the prerequisites for running Butterbase locally?+

You need Docker, Node.js 22 or higher, and npm installed. After cloning with submodules, run 'docker compose -f docker-compose.local.yml up -d' to start the stack, then execute database migrations and seed the dev user before the backend is ready for use.

How do I install butterbase?+

Open the source repository on GitHub and follow its README. butterbase is a plugin — MCP Agents Market links you directly to the official repo.

Is butterbase free?+

butterbase is an open-source project hosted on GitHub. Check the repository for its license and any usage requirements.

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