Isthmus MCP Server

@guillermoBallester

代码仓库

基本信息

分类

数据库

传输方式

stdio

作者

guillermoBallester

提交者

Guillermo Sasso

关于 Isthmus MCP Server

A single binary MCP server that gives Claude, Cursor, and any MCP client safe, read-only access to your PostgreSQL database. Runs locally over stdio or HTTP — your credentials never leave your machine.

#postgresdb#masking#mcpserver

Isthmus 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": {
    "isthmus": {
      "command": "isthmus",
      "env": {
        "DATABASE_URL": "postgres://user:pass@localhost:5432/mydb"
      }
    }
  }
}

Isthmus 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。

工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is Isthmus?

Isthmus is a local MCP server that gives AI models safe, read-only access to your PostgreSQL database. It runs as a single binary on your machine; credentials never leave.

How to use Isthmus?

Install Isthmus via the install script or Docker, set the DATABASE_URL environment variable, and add it to your MCP client configuration (e.g., Claude Desktop JSON). Then ask your AI questions about your database.

Key features of Isthmus

Schema discovery and table description tools
Read-only queries with server-side row limits and timeouts
Column masking for PII (redact, hash, partial, null)
Policy engine that enriches schema with business context
SQL validation via AST-level whitelist (only SELECT/EXPLAIN allowed)
HTTP transport for web-based clients and remote access
OpenTelemetry support for distributed tracing and metrics
Works with Claude Desktop, Cursor, Windsurf, VS Code, and ChatGPT Desktop

Use cases of Isthmus

Allow an AI assistant to explore and query your PostgreSQL schema without write access
Enable safe database analysis in client applications by enforcing read-only queries
Protect sensitive PII data by masking columns before results reach the AI
Give AI models business context on schema objects so they generate more accurate SQL

常见问题

What databases does Isthmus support?

Isthmus works exclusively with PostgreSQL databases.

Is Isthmus read-only?

Yes. Isthmus only allows `SELECT` and `EXPLAIN` statements, enforced via AST-level validation using PostgreSQL’s own parser.

How does Isthmus protect PII?

Column masking allows per-column redact, hash, partial, or null masking, enforced server-side before results are returned.

What transport protocols does Isthmus support?

Isthmus supports stdio (for desktop MCP clients) and HTTP (for web-based clients and remote access).

Which MCP clients are compatible with Isthmus?

Isthmus works with any MCP client, including Claude Desktop, Cursor, Windsurf, Gemini CLI, VS Code, and ChatGPT Desktop.

数据库分类下的更多 MCP 服务器

MongoDB MCP Server

mongodb-js

A Model Context Protocol server to connect to MongoDB databases and MongoDB Atlas Clusters.

1.1K

MCP Alchemy

runekaagaard

A MCP (model context protocol) server that gives the LLM access to and knowledge about relational databases like SQLite, Postgresql, MySQL & MariaDB, Oracle, and MS-SQL.

412