Grain MCP server

by pattrnlabs·io.github.pattrnlabs/grain·v0.10.1

Run SQL queries and inspect database schemas through safe, visible MCP tools.

B82/100grade B

What users say

No reviews yet

Safety scan

B82/100

Adoption

Growing

2 stars191 downloads/wk

Reviews

Nobody has reviewed Grain yet.

If you have run it, two minutes of your experience saves the next person an afternoon.

No tool declarations could be read from the package source. They show once the server is installed.

scanner v0.1.3 · 2026-09-19 · same rubric, same numbers if you re-run it

no findings

Code scan2 source files scanned25/25
–Live reliabilityno gateway calls yet and no remote to proben/a
–Tool poisoningtools not inspected (local package is not executed); not countedn/a
Auth qualitystatic API keys via environment variables6/15
Maintenancelast push 23 days ago15/15
Maintainer identityregistry namespace matches repository owner7/10

Overall 82/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

Runs npx -y grain-tools on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add grain -- npx -y grain-tools

Is Grain MCP server safe?: Mostly: it is graded B (82/100). Read the Grain safety report
How do I install Grain?: It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
Does Grain need an API key?: Yes. The registry entry asks for GRAIN_CONNECTIONS.
Is Grain maintained?: The last commit was 23 days ago (2026-08-27). The latest release is v0.10.1.
What can I use instead of Grain?: Servers from other publishers that do the same job: LINQ to DB MCP server, AdoMcp MCP server and DBHub MCP server. Compare all Grain alternatives.

Same job from other publishers: the closest match first, then the best rated.

LINQ to DB
Inspect database schemas and execute SQL queries across multiple database providers with LINQ to DB.
not reviewed
Established
A
AdoMcp
Database MCP server for schema discovery, comments, and SQL queries.
not reviewed
Growing
A
DBHub
Token-efficient database MCP server for PostgreSQL, MySQL, MariaDB, SQL Server, Oracle, SQLite
not reviewed
Widely used
A
Magic Cloud
Generate secured CRUD APIs over your database, run SQL, manage files, tasks and a headless browser
not reviewed
Established
A
Januscope
Local MCP proxy for tool restrictions, response redaction, audit logs, and database schema context.
not reviewed
Growing
A

Local package. It runs on your machine, not through the gateway.

GRAIN_CONNECTIONSsecretJSON array of Grain connection profiles for headless use.
GRAIN_MCP_SAFE_MODESet to false to allow mutating SQL. Defaults to true.
GRAIN_MAX_ROWSMaximum rows returned by query tools. Defaults to 10000.

Claim it to keep the listing current and reply to reviews. Claiming never changes the grade or hides a review.

Shows the safety grade and links back to this page. It updates itself after every scan and review.

[![mcp.market](https://mcp.market/badge/pattrnlabs-grain.svg)](https://mcp.market/server/pattrnlabs-grain)