Grain
A fast SQL workspace for VS Code, and for the AI agents you work with.
Docs · Changelog · Report a bug ·
Power your agent
คำสั่งของผู้เผยแพร่เอง ไม่ใช่เอนด์พอยต์ของ PlugMCP
Host a copy with our keys and logs.
npx -y [email protected]Claude Code ไม่มีลิงก์ติดตั้งสำหรับคำสั่งแบบโลคัล ให้คัดลอกคำสั่งด้านล่างแล้วรันในเทอร์มินัล
claude mcp add grain-tools -- npx -y grain-tools@0.10.49รันในเทอร์มินัล
{ "mcpServers": { "grain-tools": { "command": "npx", "args": [ "-y", "[email protected]" ] } }}claude_desktop_config.json
URL แบบรีโมตหรือคำสั่งบนเครื่องของคุณ? การติดตั้งสองแบบต่างกันอย่างไร
รันบน PlugMCP
A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.
เปิดจากผู้เผยแพร่
A fast SQL workspace for VS Code, and for the AI agents you work with.
Docs · Changelog · Report a bug ·
Standalone Grain MCP database server for VS Code, Claude Desktop, Cursor, and other MCP clients.
Run SQL from any .sql file with Ctrl+Enter and get the results in a
sortable grid inside VS Code. Passwords stay in your OS keychain, and Grain
has no hosted service.
Ctrl+Enter
(Cmd+Enter on macOS).The demo reads two CSV files through Grain's built-in DuckDB connection, so there's nothing to set up. To query your own database, run Grain: Manage Connections, add a profile, and test it before you save.
If Grain is useful to you, a star on this repo helps other developers find it.
Grain can serve your database connections to Claude Code, Cursor, and GitHub Copilot over MCP. Agents get read-only access by default, and every query an agent runs shows up in your Grain results panel, so you can see exactly what it did.
MCP is off until you turn on grain.mcpEnabled in settings. Setup steps for
each client are in the MCP docs, and example
prompts are in examples/agents/.
Through Trino or Presto you can query your cluster's Iceberg, Delta Lake, and Hive tables. DuckDB queries local CSV and Parquet files directly.
PostgreSQL and Trino / Presto are bundled with the extension. The others load their driver on first use, and if a driver is missing, Grain tells you what to install.
Need another database? Request a connector. Requests with the most 👍 get built first.
Runnable queries for Postgres, MySQL,
Elasticsearch, and DuckDB, plus
agent prompts. Open any .sql file with Grain installed
and press Ctrl+Enter.
grain.mcpSafeMode on (the
default), agents can only run SELECT, SHOW, DESCRIBE, EXPLAIN, WITH,
and metadata queries. Agents can't read stored passwords or change saved
connections.grain.telemetry.enabled.Is Grain open source?
No. Grain is closed-source. This repo holds the issue tracker, docs, and
examples.
Which databases does it support?
The nine listed above. To ask for another one,
request a connector.
Do my queries or passwords leave my machine?
No. There's no Grain server. Queries go straight from VS Code to your database,
and passwords stay in your OS keychain. See Privacy for what the
anonymous telemetry does and doesn't include.
How do I connect Claude Code or Cursor?
Turn on grain.mcpEnabled, then follow the steps for your client in the
MCP docs.
Why does my database show a driver error?
Some connectors load their driver on first use. The error message names what
to install. If it's still failing after that,
file a bug report
with the Output panel logs (View → Output → Grain).
We don't have a fixed roadmap yet. What we build next depends a lot on what people ask for here, especially connector requests. See CONTRIBUTING.md for how to file a good issue.
Grain is closed-source. See LICENSE.
Standalone Grain MCP database server for VS Code, Claude Desktop, Cursor, and other MCP clients.
{ "mcpServers": { "grain-tools": { "command": "npx", "args": [ "-y", "[email protected]" ] } }}เครื่องมือ
ยังไม่มีรายการเครื่องมือ เซิร์ฟเวอร์แบบรีโมตจะได้รายการหลังการตรวจสอบสถานะครั้งแรก
FAQ
คัดลอกคอนฟิก stdio สำหรับ Cursor, Claude Desktop, Claude Code หรือ VS Code ได้ในหน้านี้ คอนฟิกนี้ใช้การติดตั้งของผู้เผยแพร่ ไม่ใช่พร็อกซีของ PlugMCP
ระเบียนนี้ไม่ได้ระบุตัวแปรสภาพแวดล้อมที่จำเป็น
Grain Tools ทำงานแบบโลคัลผ่าน stdio
ตรวจสอบล่าสุดเมื่อ 2026-11-14 Standalone Grain MCP database server for VS Code, Claude Desktop, Cursor, and other MCP clients.