ErdDocs
ER diagrams from SQL, Prisma or ORM models. One tool, no account, nothing stored.
What it does
ErdDocs is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
From the publisher's description, Electra Index matched it to one capability: sql querying. That makes it a candidate for tasks such as query databases in plain language or build data pipelines.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 5h ago (live check)Hosted endpoint
https://erddocs.com/mcpstreamable-http
In Claude Code: claude mcp add --transport http erddocs https://erddocs.com/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"erddocs": {
"url": "https://erddocs.com/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 5h agoONLINE ErdDocs answered an MCP connection on 05 Nov 2026 and introduced itself as erddocs 1.0.0 (MCP protocol 2025-06-18).
1 tool offered to AI assistants
open_er_diagram· Open 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.
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.
Tasks it helps with
Share of each task's required capabilities it covers| Query databases in plain language SQL Querying | 50% |
| Build data pipelines SQL Querying | 33% |
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Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Version | 1.0.1 | DECLARED | SRC-001 Official MCP Registry | 3h ago |
| Hosted endpoint | https://erddocs.com/mcp | DECLARED | SRC-001 Official MCP Registry | 3h ago |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | 3h ago |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | 3h ago |
| Website | https://erddocs.com/docs/mcp/ | DECLARED | SRC-001 Official MCP Registry | 3h ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 3h ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 3h ago |
Change history
- VERSION05 Nov 20261.0.0 → 1.0.1
- NEW05 Nov 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is ErdDocs still online?
Free alerts · no account▲ 0Do you run ErdDocs? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
Questions about ErdDocs
How do I connect ErdDocs?
Use the hosted endpoint https://erddocs.com/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does ErdDocs offer?
When Electra Index connected on 05 Nov 2026, it listed 1 tool: open_er_diagram. The full list is in "Live check" above.
Is ErdDocs online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 5h ago.
What can I use ErdDocs for?
Based on its description, it is most relevant to: query databases in plain language, build data pipelines.