Zed ensembl mcp server ensembl_get_sequence
How to: Zed ensembl mcp server ensembl_get_sequence
Add ensembl mcp server to Zed
-
01
Open ~/.config/zed/settings.json and merge this in. Keep any servers already there.
{
"context_servers": {
"ensembl-mcp-server": {
"url": "https://ensembl.caseyjhand.com/mcp"
}
}
}-
02
Save the file and restart Zed.
-
03
Ask for something ensembl_get_sequence does. Zed lists the server's tools on connect and calls ensembl_get_sequence itself — you do not invoke it by name.
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04
If nothing happens, check the server is running and that ensembl mcp server's identifier in your config matches the one above exactly.
Merge this into your existing settings object — do not replace the file. Zed docs
Set these first
ensembl mcp server will not start until these are set, so ensembl_get_sequence never becomes available.
-
ENSEMBL_BASE_URL -
MCP_LOG_LEVEL
Same tool, other clients
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.