Sqemo MCP server

sqemo-mcp

MCP server for Sqemo — AI agents that follow your team's database naming standard.

Your agent models in business terms ("Customer Number"); the column comes out as custno because your word list says customer → cust, number → no (case and delimiter are rules too, so CUSTNO is one setting away). Same input, same name, every table, every agent. Overrides are allowed but flagged, and a CLI lint catches drift in CI.

{ "mcpServers": { "sqemo": { "command": "npx", "args": ["-y", "sqemo-mcp"] } } }

Works with Claude Code, Claude Desktop, Cursor, and any MCP client. Local .erd.json files need no account; cloud ERDs and Pro tools need npx sqemo-mcp login.

What it looks like

*Model a discussion board where members post articles, a post can be a reply to another

post, and members comment on posts.*

The agent calls the tools with logical names and never types a column name:

upsert_entity    { logicalName: "Post" }
// → { physicalName: "POST" }

upsert_attribute { logicalName: "Post Content", domain: "Content" }
// → { physicalName: "POST_CNTS" }          // Content → CNTS: from the team word list

upsert_attribute { logicalName: "Delete Flag", domain: "Flag" }
// → { physicalName: "DELETE_YN" }          // Flag → YN: same rule in every table

lint_erd
// → naming drift, missing words, referential integrity — before any DDL is written

CNTS and YN are not the agent's taste. They are your word list's abbreviations, applied the same way they were applied in every other table your team has modelled. Domains carry the data type, so Content is varchar(1000) everywhere it appears.

Full walkthrough with every tool call: Describe the work, get a governed schema.

Overview

AI agents can query and edit entities, relationships, and domains; generate physical names from a shared team glossary; import/export SQL (7 dialects) and DBML; and compare the model against a live database. Works with both local .erd.json files and ERDs stored on the Sqemo cloud.

• npm: sqemo-mcp
• Official MCP Registry: io.github.sqemo/sqemo
• Web app: app.sqemo.com

Requires Node.js >= 22. Local-file tools work without any account or configuration.

Login is needed for cloud ERD tools, and for the tools marked (Pro) below.

Installation

Claude Code (.mcp.json)

{
  "mcpServers": {
    "sqemo": { "command": "npx", "args": ["-y", "sqemo-mcp"] }
  }
}

Claude Desktop

Add the same mcpServers entry to your config file:

• Windows: %APPDATA%\Claude\claudedesktopconfig.json
• macOS: ~/Library/Application Support/Claude/claudedesktopconfig.json

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "sqemo": { "command": "npx", "args": ["-y", "sqemo-mcp"] }
  }
}

Login (cloud ERDs and Pro tools)

npx sqemo-mcp login    # pick Google, GitHub, or email + password
npx sqemo-mcp logout   # removes stored credentials

Shortened. The full README is on GitHub.