Claude Desktop TokenLab MCP Server open_tokenlab_model_explorer
How to: Claude Desktop TokenLab MCP Server open_tokenlab_model_explorer
Add TokenLab MCP Server to Claude Desktop
-
01
Open ~/Library/Application Support/Claude/claude_desktop_config.json and merge this in. Keep any servers already there.
{
"mcpServers": {
"tokenlab": {
"command": "npx",
"args": [
"-y",
"@tokenlabai/mcp-server"
],
"env": {
"TOKENLAB_API_BASE": "<TOKENLAB_API_BASE>",
"TOKENLAB_API_KEY": "<TOKENLAB_API_KEY>",
"TOKENLAB_REQUEST_TIMEOUT_MS": "<TOKENLAB_REQUEST_TIMEOUT_MS>",
"TOKENLAB_MCP_TOOL_PROFILE": "<TOKENLAB_MCP_TOOL_PROFILE>",
"TOKENLAB_MCP_SCHEMA_MODE": "<TOKENLAB_MCP_SCHEMA_MODE>",
"TOKENLAB_MCP_MAX_FILE_BYTES": "<TOKENLAB_MCP_MAX_FILE_BYTES>",
"TOKENLAB_MCP_INLINE_BYTES": "<TOKENLAB_MCP_INLINE_BYTES>",
"TOKENLAB_ARTIFACT_DIR": "<TOKENLAB_ARTIFACT_DIR>",
"TOKENLAB_MANAGEMENT_TOKEN": "<TOKENLAB_MANAGEMENT_TOKEN>"
}
}
}
}
-
02
Save the file and restart Claude Desktop.
-
03
Ask for something open_tokenlab_model_explorer does. Claude Desktop lists the server's tools on connect and calls open_tokenlab_model_explorer itself — you do not invoke it by name.
-
04
If nothing happens, check the server is running and that TokenLab MCP Server's identifier in your config matches the one above exactly.
Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs
Set these first
TokenLab MCP Server will not start until these are set, so open_tokenlab_model_explorer never becomes available.
-
TOKENLAB_API_BASE -
TOKENLAB_API_KEY -
TOKENLAB_REQUEST_TIMEOUT_MS -
TOKENLAB_MCP_TOOL_PROFILE -
TOKENLAB_MCP_SCHEMA_MODE -
TOKENLAB_MCP_MAX_FILE_BYTES -
TOKENLAB_MCP_INLINE_BYTES -
TOKENLAB_ARTIFACT_DIR -
TOKENLAB_MANAGEMENT_TOKEN
Same tool, other clients
This list was read from the server itself, by connecting to it and calling tools/list on 18 October 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.