ER diagrams from SQL, Prisma or ORM models. One tool, no account, nothing stored.
Connect Remote server
claude mcp add --transport http erd-diagram https://erddocs.com/mcp
{
"mcpServers": {
"erd-diagram": {
"url": "https://erddocs.com/mcp"
}
}
}
{
"servers": {
"erd-diagram": {
"type": "http",
"url": "https://erddocs.com/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://erddocs.com/mcp
Tools 1 found in our last check
open_er_diagramOpen an interactive ER diagram of a database schema on erddocs.com. Use it when the user wants to see, understand, review or document their database structure, or asks for an ER diagram. Pass the schema text exactly as it is in the project. It reads SQL dumps and DDL (PostgreSQL…
Details
| Endpoint | https://erddocs.com/mcp (Streamable HTTP) |
| First published | 5 Nov 2026 |
| Last updated | 5 Nov 2026 |
| Registry name | com.erddocs/erd-diagram |
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