Schemabrain MCP Server

@Arun-kc

代码仓库

基本信息

分类

数据库

传输方式

stdio

作者

Arun-kc

提交者

arunkc

关于 Schemabrain MCP Server

A read-only trust + intelligence layer between AI agents and your database — the agent never writes SQL, PII is refused before the query runs, and every call lands in a tamper-evident audit log. Postgres today.

#mcp #database #security #postgres #pii #data-governance #audit #semantic-layer

Schemabrain MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "schemabrain": {
      "command": "uvx",
      "args": [
        "schemabrain",
        "serve",
        "--url-env",
        "DATABASE_URL"
      ],
      "env": {
        "DATABASE_URL": "postgresql://user:password@localhost:5432/dbname"
      }
    }
  }
}

Schemabrain MCP Server 工具

工具列表暂未提供

当前收录暂时没有可展示的工具列表，不代表服务没有工具。请查阅项目文档了解支持的能力。

点击上方按钮,在临时沙箱中运行此服务器并实时获取工具列表。

概览

What is Schemabrain?

Schemabrain is an MCP server that acts as a read-only trust and intelligence layer between AI agents (Claude, Cursor, Windsurf) and your SQL database. It compiles SQL from definitions you control and refuses queries touching blocked categories before the database is queried.

How to use Schemabrain?

Install Schemabrain using the uvx package manager. It sits between an AI agent and a Postgres database. Twelve read-only MCP tools are available; the agent never writes SQL directly.

Key features of Schemabrain

Read-only architecture — 12 MCP tools, none can write.
PII-aware refusal — blocked-category queries are rejected before hitting the database.
Tamper-evident audit — SHA-256‑chained append‑only log of every call, refusal, and recovery.
Postgres support today; Apache‑2.0 licensed.
Simple installation via uvx.

Use cases of Schemabrain

Letting AI agents query a production database without risk of writes.
Preventing accidental or malicious PII extraction from the database.
Maintaining an immutable, verifiable audit trail of all agent queries.
Enforcing data-access policies through category-based refusal rules.

常见问题

Is Schemabrain read-only?

Yes. All 12 MCP tools are read-only by architecture. The agent never writes SQL; SchemaBrain compiles SQL from definitions you control.

How does Schemabrain handle PII?

It maintains a set of blocked categories. Any query touching a blocked category is refused before the database is queried.

What database does Schemabrain support?

Currently only Postgres.

Is there an audit log?

Yes. Every call, refusal, and recovery is recorded in a SHA-256-chained append-only log that is tamper-evident.

How do I install Schemabrain?

Install using `uvx`.

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