Junê
Shared, cited knowledge-graph memory for agents — ask, search, and remember against a June endpoint
Using Junê in Claude, Cursor, Gemini CLI, Cline, or Zed?
MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).
Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less
uv tool install mcpindex-gate && mcpindex-config-wireVerdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.
Own this server? Screen its description →
That verdict was true at screening time (snapshot 2026-08-05).
Contracts can change after screening, with no version bump. The gate pins Junê’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.
See your first HOLD in 2 minutes →
Related: how to trust an MCP server · screen before install · silent contract drift
JUNE_BASE_URLYour 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_CANVASThe 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_KEYYour June API key (set JUNE_ALLOW_ANON=1 instead to explicitly opt out for keyless local setups)
JUNE_LLM_KEYBring-your-own LLM key for cited answers — forwarded per-request as a header, never logged or stored on the service
JUNE_CANVAS_CREATESet to 1 to create the named canvas on first run if it doesn't exist yet (refused in read-only mode)
JUNE_READONLYSet to 1 to hide and refuse all write tools (memory becomes read-only)
JUNE_FILES_ROOTOpt-in directory agents may upload files from via june_ingest_file — unset means that tool doesn't exist
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