{"slug": "io-github-primeline-ai-kairn-io-github-primeline-ai-kairn-0-2-1", "title": "io.github.primeline-ai/kairn (io.github.primeline-ai/kairn@0.2.1)", "summary": "Io.github.primeline-ai/kairn, a local-first knowledge engine for AI agents providing memory, graph, and recall over MCP, released version 0.2.1 to the official MCP registry on 2026-08-24. The package, filed under Memory & RAG, declares one environment variable (KAIRN_WORKSPACE) and has not yet been evaluated by the mcpindex gate, leaving its verdict as REVIEW or UNVERIFIED.", "body_md": "[← Index](/leaderboard)\n\n# io.github.primeline-ai/kairn\n\nLocal-first knowledge engine for AI agents: memory, graph, and recall over MCP.\n\nThe current version, v0.2.1, was published to the official MCP registry on 2026-08-24. It is distributed through a declared package, filed under Memory & RAG by this index, and declares one environment variable. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; [the index's current counts](/stats) put this record in context.\n\n## Using io.github.primeline-ai/kairn in Claude, Cursor, Gemini CLI, Cline, or Zed?\n\nMCP 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).\n\nRewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less\n\n```\nuv tool install mcpindex-gate && mcpindex-config-wire\n```\n\n[method](/methodology)\n\nVerdict 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](/methodology).\n\nOwn this server? [Screen its description →](/screen)\n\n## That verdict was true at screening time (snapshot 2026-08-24).\n\nContracts can change after screening, with no version bump. The gate pins io.github.primeline-ai/kairn’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.\n\n[See your first HOLD in 2 minutes →](/guides/install-the-gate-first-hold)\n\nRelated: [how to trust an MCP server](/guides/how-to-trust-an-mcp-server) · [screen before install](/guides/screen-mcp-server-before-install) · [silent contract drift](/guides/mcp-silent-contract-drift)\n\n`KAIRN_WORKSPACE`\n\nDirectory holding the Kairn database. Everything Kairn stores stays inside it and never leaves this machine. Defaults to ~/.kairn.\n\n[methodology](/methodology)\n\n[Fodda Knowledge Graphsai.fodda/mcp-server](/server/ai-fodda-mcp-server)\n\nExpert-curated knowledge, brand, research & earnings intelligence — 47 tools, 220+ graphs.\n\n[Achriomcom.achriom/achriom](/server/com-achriom-achriom)\n\nMedia memory for AI agents and their humans: books, movies, music, shows, anime, podcasts, games.\n\n[ProWebStoreio.github.prowebstore-online/platform](/server/io-github-prowebstore-online-platform)\n\nAI-operated knowledge-graph CMS for business websites: entities, pages, blocks, media, domains.", "url": "https://wpnews.pro/news/io-github-primeline-ai-kairn-io-github-primeline-ai-kairn-0-2-1", "canonical_source": "https://mcpindex.ai/server/io-github-primeline-ai-kairn", "published_at": "2026-08-24 22:14:39+00:00", "updated_at": "2026-08-24 23:14:03.209494+00:00", "lang": "en", "topics": ["ai-agents", "ai-tools", "ai-infrastructure"], "entities": ["io.github.primeline-ai/kairn", "MCP registry", "KAIRN_WORKSPACE", "mcpindex"], "alternates": {"html": "https://wpnews.pro/news/io-github-primeline-ai-kairn-io-github-primeline-ai-kairn-0-2-1", "markdown": "https://wpnews.pro/news/io-github-primeline-ai-kairn-io-github-primeline-ai-kairn-0-2-1.md", "text": "https://wpnews.pro/news/io-github-primeline-ai-kairn-io-github-primeline-ai-kairn-0-2-1.txt", "jsonld": "https://wpnews.pro/news/io-github-primeline-ai-kairn-io-github-primeline-ai-kairn-0-2-1.jsonld"}}