A local database MCP server built into Schemity, database design software for software engineers. Your AI agent reads the schema of your live PostgreSQL, MySQL, MariaDB, SQL Server, or SQLite…
Schemity is an MCP project maintained in the tbson/schemity-mcp repository. The maintainer describes its purpose as “A local database MCP server built into Schemity, database design software for software engineers. Your AI agent reads the schema of your live PostgreSQL, MySQL…”. Read the project documentation for the complete scope.
The project provides a local client configuration using /Applications/Schemity.app/Contents/MacOS/schemity. Follow the repository’s build and installation steps before copying it, and replace example paths with the paths on your own computer.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| list_diagrams | List the diagrams open in Schemity; call it first. Read-only. |
| get_schema | Entities, fields, relations, and legends of a diagram or one context view. Read-only. |
| get_context_views | Context views, the dependencies between them, and cycles. Read-only. |
| get_dependencies | Relations into and out of one entity, with the columns on both sides. Read-only. |
| get_data_dictionary | The documented schema as Markdown, descriptions included. Read-only. |
| get_pending_changes | The diagram's unsaved edits, as the undo history that produced them. Read-only. |
| analyze_impact | What the pending migration would cost: lost data, statements that fail on existing rows, table rewrites, locks on large tables, dependent views and… |
| analyze_migration_file | The same analysis for a migration file, hand-written or generated by Prisma, Alembic, or Flyway, without running it. Read-only. |
| lint | Schema findings: conventions, missing indexes, type mismatches. Read-only. |
| check_relation_lines | Relation lines that overlap or cross. Read-only. |
| count_rows | An exact count behind a finding, run as a read-only query when you ask for it. |
| open_schemity | Start Schemity, or bring it to the front. |
| show_preview | Draw a proposed change in Schemity for you to look at; nothing is saved. |
| propose_changes | Create, change, and delete entities, fields, relations, legends, and context views. Staged as unsaved edits you review. |
| group_entities | Group entities into legends. Staged as unsaved edits you review. |
| route_relations | Route relation lines around the tables so they cross less. Staged as unsaved edits you review. |
{
"mcpServers": {
"schemity": {
"command": "/Applications/Schemity.app/Contents/MacOS/schemity",
"args": [
"--mcp"
]
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
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