Junê MCP Server

by junemindio.github.Junemind/june-mcpv0.8.1

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Active3d ago

Install Junê MCP server

claude mcp add june -e JUNE_BASE_URL='<june-base-url>' -e JUNE_CANVAS='<june-canvas>' -e JUNE_API_KEY='<june-api-key>' -e JUNE_LLM_KEY='<june-llm-key>' -- uvx june-mcp

{
  "mcpServers": {
    "june": {
      "command": "uvx",
      "args": [
        "june-mcp"
      ],
      "env": {
        "JUNE_BASE_URL": "<june-base-url>",
        "JUNE_CANVAS": "<june-canvas>",
        "JUNE_API_KEY": "<june-api-key>",
        "JUNE_LLM_KEY": "<june-llm-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "june": {
      "command": "uvx",
      "args": [
        "june-mcp"
      ],
      "env": {
        "JUNE_BASE_URL": "<june-base-url>",
        "JUNE_CANVAS": "<june-canvas>",
        "JUNE_API_KEY": "<june-api-key>",
        "JUNE_LLM_KEY": "<june-llm-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "june": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "june-mcp"
      ],
      "env": {
        "JUNE_BASE_URL": "<june-base-url>",
        "JUNE_CANVAS": "<june-canvas>",
        "JUNE_API_KEY": "<june-api-key>",
        "JUNE_LLM_KEY": "<june-llm-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "june": {
      "command": "uvx",
      "args": [
        "june-mcp"
      ],
      "env": {
        "JUNE_BASE_URL": "<june-base-url>",
        "JUNE_CANVAS": "<june-canvas>",
        "JUNE_API_KEY": "<june-api-key>",
        "JUNE_LLM_KEY": "<june-llm-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
JUNE_BASE_URL	yes	—	Your June endpoint, e.g. http://localhost:8000 (the Junê desktop app's local engine, your own june-local service, or a hosted Team workspace)
JUNE_CANVAS	yes	—	The canvas (workspace) to bind this connection to — a name (e.g. 'work') or a canvas id; names resolve at startup and ambiguous names fail closed
JUNE_API_KEY	yes	yes	Your June API key (set JUNE_ALLOW_ANON=1 instead to explicitly opt out for keyless local setups)
JUNE_LLM_KEY	—	yes	Bring-your-own LLM key for cited answers — forwarded per-request as a header, never logged or stored on the service
JUNE_CANVAS_CREATE	—	—	Set to 1 to create the named canvas on first run if it doesn't exist yet (refused in read-only mode)
JUNE_READONLY	—	—	Set to 1 to hide and refuse all write tools (memory becomes read-only)
JUNE_FILES_ROOT	—	—	Opt-in directory agents may upload files from via june_ingest_file — unset means that tool doesn't exist
JUNE_DOCS_CANVAS	—	—	Canvas holding the agent's standing docs/skills/learnings (default 'agent_docs')
JUNE_DOCS_REFRESH	—	—	Set to 0 to disable the periodic standing-docs digest re-injected on tool results (default on)
JUNE_REFRESH_CALLS	—	—	Tool calls between digest injections (default 12) — lower it for small-context agents
JUNE_REFRESH_MINUTES	—	—	Wall-clock fallback between digest injections (default 10)
JUNE_DIGEST_CHARS	—	—	Standing-docs digest size cap in characters (default 2000)
JUNE_EXPORT_ROOT	—	—	Opt-in directory for repo sync — enables june_docs_export / june_page_export / june_page_import (fenced writes, commit-only git); unset means those tools don't exist

Freshness

Active — last maintenance signal 3d ago. The newest of the signals below sets the band.

Last commit (default branch)
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Latest release
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Package published
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Registry entry updated
2026-10-07 · 3d ago · official registry · v0.8.1

FAQ

›How do I install the Junê MCP server in Claude Code?

Run: claude mcp add june -e JUNE_BASE_URL='<june-base-url>' -e JUNE_CANVAS='<june-canvas>' -e JUNE_API_KEY='<june-api-key>' -e JUNE_LLM_KEY='<june-llm-key>' -- uvx june-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Junê require an API key?

Yes. It expects JUNE_BASE_URL, JUNE_CANVAS, JUNE_API_KEY, JUNE_LLM_KEY, of which 2 are secrets.

›Can I use Junê as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Junê in the official MCP registry?

Yes, as io.github.Junemind/june-mcp.