# butterbase-ai/butterbase

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

Repository: https://github.com/butterbase-ai/butterbase
Canonical: https://ross.abutalabs.com/products/butterbase
Language: TypeScript
License: Apache-2.0
License Family: permissive
Topics: baas, backend-as-a-service, mcp, open-source, postgres, supabase-alternative, typescript
Last push: 2026-08-26T12:15:45+00:00

## Health v2 (maintenance only)
Score: 58/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 7
- inputs: {"age_days": 106, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, young
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3259, forks 160 (observed 2026-08-28T04:07:52.304728+00:00)

## What it is
Butterbase is an open-source, AI-native backend-as-a-service platform built on Postgres, providing auth, storage, serverless functions, an LLM gateway, realtime subscriptions, and a built-in MCP server. It is a self-hostable Supabase alternative designed so AI agents can operate the backend via MCP tools.

## Use cases
- self-host a supabase alternative
- add auth and row-level security to a postgres backend
- let AI agents manage my backend via MCP
- build an AI app with an LLM gateway and RAG
- get automatic REST APIs from a postgres schema
- store files and key-value data for my app
- run serverless functions without vendor lock-in

## When to choose
- you want an open-source, self-hostable Supabase alternative
- you're building AI-driven apps that need an LLM gateway, RAG, or MCP tool access
- you want Postgres with managed auth, RLS, storage, and auto-generated REST APIs in one stack

## When to avoid
- you need a battle-tested BaaS with a large ecosystem and managed hosting at scale
- you only need a plain database or a single-purpose service rather than a full platform
- your stack is not TypeScript/Postgres oriented

## Facets
- artifact type: service
- maturity: active
- function: database, auth, api-framework, llm-inference, mcp, rag, file-upload, websocket, self-hosted
- domain: backend, web-development, large-language-models, databases, self-hosted, developer-tools
- platform: self-hosted
- tags: backend-as-a-service, supabase-alternative, postgres, row-level-security, serverless-functions, ai-gateway, realtime, key-value-store, open-source, ai-agents, docker, typescript, nodejs, web-server

## Member repositories
- butterbase-ai/butterbase (main) score 58

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:52.304728+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:23:14.058625+00:00, confidence not recorded.
  - readme: https://github.com/butterbase-ai/butterbase (fetched 2026-08-28T04:07:52.304728+00:00, sha f8cf0c5b76ed)
- Data as of 2026-08-30T08:39:29.467469+00:00.