Mermaid-MCP
NarasimhaponnadaLABSCO SUMMARY
Export as an image is the tool that gets a diagram out of the tool and into the document someone reads.
Generating an architecture diagram is the easy half; getting it into a README or a ticket is where it usually stops. Being able to export PNG or JPEG in the same conversation closes that. Note the free-tier arithmetic before building a habit on it — five AI generations and three files is an evaluation allowance, not a working one, and the MCP server shares those limits rather than being separate.
What it is
Eraser's endpoint for their diagramming and docs tool. Free to use, subject to the same limits as working in the app, with a local package as an alternative.
What you get
- Diagram and document generation from natural language
- File and diagram CRUD, archiving, and folder management
- AI preset management
- Search across workspaces
- Export to PNG or JPEG, optionally with a theme
Requirements
OAuth in the browser, or an API token from account settings for CI. The MCP server itself is free; the free plan allows 3 files, 5 AI diagram generations and 7 days of version history.
Setup effort
Paste a URL, then authorize — add the endpoint to your client, then approve the OAuth consent screen
USE CASES
01
Turning an explanation into a diagram
Describe the system and get a diagram file, then export it as an image for the doc.
02
Keeping diagrams organised
Manage files and folders, and archive what is stale, without opening the app.
03
Running it in CI
Use a bearer API token instead of the browser OAuth path.
BEFORE YOU INSTALL
What to know first
Requires
- an MCP client that can reach a remote endpoint
- OAuth in the browser by default, or a bearer API token from account settings for CI and headless use
INSTALLATION
Connect your client
Add the endpoint to your client, then approve the OAuth consent screen.
Server setup
ENDPOINT URL
https://app.eraser.io/api/mcpRequirements
- OAuth in the browser by default, or a bearer API token from account settings for CI and headless use
