Schema Brain MCP Server

Stop giving AI agents raw database connection strings. Give them SchemaBrain instead - a read-only trust and intelligence layer where the agent never writes SQL, PII is refused before the query runs, and every call lands in a tamper-evident audit log. It runs locally over stdio via the published package.

People who work with agentic ai, database security and agent tools and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-08-24 · ★ 9 · #88 OF 168 MAINTAINED DATABASE · VERIFIED 2026-09-18

Apache-2.0 · Python servers · how we verify → /methodology

01 · Install Schema Brain

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add arun-kc-schemabrain -- uvx schemabrain

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "arun-kc-schemabrain": {
      "command": "uvx",
      "args": [
        "schemabrain"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license Apache-2.0 - declared in the repository

pypi package schemabrain - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.Arun-kc is GitHub-verified and matches the repo owner

03 · What Schema Brain can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.6.0 · 2026-06-13

The marketed launch - SchemaBrain grows from a 4-surface dashboard into a graph-led, 9-surface trust + intelligence layer between AI agents and your database. · Highlights · The dashboard grows from 4 surfaces into a…

v0.5.0 · 2026-06-01

Highlights - the launch release: a read-only dashboard ([ui] extra), an editable PII enforcement policy, a substantially hardened SQL firewall, a zero-config SaaS demo pack, and a full Mintlify docs site. The publish…

v0.4.0 · 2026-05-25

SchemaBrain v0.4.0 - SQL firewall positioning + DX hardening · pip install schemabrain==0.4.0 · Quickstart · What's new · Positioning lock. README, package metadata, CLI --help, and MCP server handshake all anchor on…

04 · Who maintains Schema Brain

SchemaBrain is maintained by arun-kc. It's the only MCP server we track from this author; the repo dates to May 2026.

05 · Facts

repository: github.com/arun-kc/schemabrain
website: https://schemabrain.mintlify.app/
category: database - ranked #88 of 168 actively-maintained database servers as of 2026-09-18.
registry: io.github.Arun-kc/schemabrain (active, first published 2026-06-13)
packages: pypi:schemabrain

06 · Schema Brain FAQ

What is Schema Brain?

Is Schema Brain still maintained?

Yes - as of 2026-09-18, its last commit was 2026-08-24. We re-verify nightly.

How do I install Schema Brain?

Run `uvx schemabrain`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does Schema Brain run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Schema Brain

Alternatives to Schema Brain

Maintained database servers if Schema Brain isn't the fit.

Pairs well with

Servers that cover what Schema Brain doesn't - only shown when the pairing reason fits the companion.

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