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Junê

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Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

PYPI package june-mcp
Claude Code 
claude mcp add jun -e 'JUNE_BASE_URL=<JUNE_BASE_URL>' -e 'JUNE_CANVAS=<JUNE_CANVAS>' -e 'JUNE_API_KEY=<your june_api_key>' -e 'JUNE_LLM_KEY=<your june_llm_key>' -e 'JUNE_CANVAS_CREATE=<JUNE_CANVAS_CREATE>' -e 'JUNE_READONLY=<JUNE_READONLY>' -e 'JUNE_FILES_ROOT=<JUNE_FILES_ROOT>' -e 'JUNE_DOCS_CANVAS=<JUNE_DOCS_CANVAS>' -e 'JUNE_DOCS_REFRESH=<JUNE_DOCS_REFRESH>' -e 'JUNE_REFRESH_CALLS=<JUNE_REFRESH_CALLS>' -e 'JUNE_REFRESH_MINUTES=<JUNE_REFRESH_MINUTES>' -e 'JUNE_DIGEST_CHARS=<JUNE_DIGEST_CHARS>' -e 'JUNE_EXPORT_ROOT=<JUNE_EXPORT_ROOT>' -- uvx june-mcp==0.8.1
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "jun": {
            "command": "uvx",
            "args": [
                "june-mcp==0.8.1"
            ],
            "env": {
                "JUNE_BASE_URL": "<JUNE_BASE_URL>",
                "JUNE_CANVAS": "<JUNE_CANVAS>",
                "JUNE_API_KEY": "<your june_api_key>",
                "JUNE_LLM_KEY": "<your june_llm_key>",
                "JUNE_CANVAS_CREATE": "<JUNE_CANVAS_CREATE>",
                "JUNE_READONLY": "<JUNE_READONLY>",
                "JUNE_FILES_ROOT": "<JUNE_FILES_ROOT>",
                "JUNE_DOCS_CANVAS": "<JUNE_DOCS_CANVAS>",
                "JUNE_DOCS_REFRESH": "<JUNE_DOCS_REFRESH>",
                "JUNE_REFRESH_CALLS": "<JUNE_REFRESH_CALLS>",
                "JUNE_REFRESH_MINUTES": "<JUNE_REFRESH_MINUTES>",
                "JUNE_DIGEST_CHARS": "<JUNE_DIGEST_CHARS>",
                "JUNE_EXPORT_ROOT": "<JUNE_EXPORT_ROOT>"
            }
        }
    }
}

Environment variables

  • JUNE_BASE_URL required 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 required 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 required secret Your June API key (set JUNE_ALLOW_ANON=1 instead to explicitly opt out for keyless local setups)
  • JUNE_LLM_KEY secret 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

Frequently asked questions

What is Junê?

Shared, cited knowledge-graph memory for agents — ask, search, remember, keep standing instructions

How do I install Junê?

It runs on your machine. In Claude Code: claude mcp add jun -e 'JUNE_BASE_URL=<JUNE_BASE_URL>' -e 'JUNE_CANVAS=<JUNE_CANVAS>' -e 'JUNE_API_KEY=<your june_api_key>' -e 'JUNE_LLM_KEY=<your june_llm_key>' -e 'JUNE_CANVAS_CREATE=<JUNE_CANVAS_CREATE>' -e 'JUNE_READONLY=<JUNE_READONLY>' -e 'JUNE_FILES_ROOT=<JUNE_FILES_ROOT>' -e 'JUNE_DOCS_CANVAS=<JUNE_DOCS_CANVAS>' -e 'JUNE_DOCS_REFRESH=<JUNE_DOCS_REFRESH>' -e 'JUNE_REFRESH_CALLS=<JUNE_REFRESH_CALLS>' -e 'JUNE_REFRESH_MINUTES=<JUNE_REFRESH_MINUTES>' -e 'JUNE_DIGEST_CHARS=<JUNE_DIGEST_CHARS>' -e 'JUNE_EXPORT_ROOT=<JUNE_EXPORT_ROOT>' -- uvx june-mcp==0.8.1. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Junê need an API key?

Yes. It expects JUNE_BASE_URL, JUNE_CANVAS, JUNE_API_KEY, JUNE_LLM_KEY, which you set in its configuration.

Is Junê open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Junê?

It is published by Junemind. AI.tn lists it but does not maintain or endorse it.

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