{"slug": "vaara-mcp-server-io-github-vaaraio-vaara-server-1-73-0", "title": "Vaara MCP Server (io.github.vaaraio/vaara-server@1.73.0)", "summary": "Vaara MCP Server (io.github.vaaraio/vaara-server) version 1.73.0, an accountable autonomy MCP server providing gating and tamper-evident audit for every action, was published to the official MCP registry on 2026-08-21 and is distributed as vaara on PyPI. The mcpindex gate pins its tool contracts and holds calls when they drift, and a semantic screen found no manipulation pattern in its description, though the deterministic conformance probe has not yet been run.", "body_md": "[← Index](/leaderboard)\n\n# Vaara MCP Server\n\nAccountable autonomy MCP server: gating, tamper-evident audit for every action\n\nThe current version, v1.73.0, was published to the official MCP registry on 2026-08-21. It is distributed as vaara on PyPI, filed under Other by this index, and declares 2 environment variables. 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 Vaara MCP Server 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\nSemantic screen found no manipulation pattern in the description. Conformance probe not yet run.\n\n`mcpindex.integrity.description`\n\npassINFOevidence“No malicious instructions found”via static_description\n\n- - Semantic screen only - the deterministic conformance probe has not run on this server\n- - Confidence is reported but not yet calibrated (v1)\n- - Screen reads the tool description, not the live behavior\n- - advisory\n- - registry description only no input schema\n- - screen model 8b\n- - The registry listing (version, packages, links) changed after this screen ran - the description we assessed did not\n\nSemantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.\n\nOwn this server? [Screen its description →](/screen)\n\n## That verdict was true at screening time (snapshot 2026-08-21).\n\nContracts can change after screening, with no version bump. The gate pins Vaara MCP Server’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\nPeople vet a server before wiring it in. One line on your project site or docs answers that with an independent record: screening verdict, registry provenance, contract drift history. It stays current as new screens and drift events land.\n\n```\n[Independent trust record for Vaara MCP Server](https://mcpindex.ai/server/io-github-vaaraio-vaara-server) - screening verdict, registry provenance, and contract drift monitoring.\nIndependent trust record for Vaara MCP Server - screening verdict, registry provenance, and contract drift monitoring.\n```\n\nA live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.\n\n```\n[](https://mcpindex.ai/server/io-github-vaaraio-vaara-server)\n![\"mcpindex](\"https://mcpindex.ai/api/v1/badge/io-github-vaaraio-vaara-server\")
\n```\n\n`VAARA_DB`\n\nPath to the SQLite audit DB. Defaults to vaara_audit.db in the working directory.\n\n`VAARA_API_KEY`\n\nOptional shared secret. When set, every tool call must include _api_key in its arguments. Leave unset for single-tenant stdio deployments where process isolation is enough.\n\n[methodology](/methodology)\n\n[ConnectMachineai.connectmachine/connectmachine](/server/ai-connectmachine-connectmachine)\n\nManage your ConnectMachine contacts, networks, events, and digital business cards.\n\n[DABLOCK AI Visibility Indexai.dablock/visibility-index](/server/ai-dablock-visibility-index)\n\nMeasured share of answer for 24 crypto and Web3 brands. An open dataset, not an audit of your site.\n\n[Valetio.github.valetdotdev/valet](/server/io-github-valetdotdev-valet)\n\nGet share links, publish and manage websites, artifacts and agents. No account needed.", "url": "https://wpnews.pro/news/vaara-mcp-server-io-github-vaaraio-vaara-server-1-73-0", "canonical_source": "https://mcpindex.ai/server/io-github-vaaraio-vaara-server", "published_at": "2026-08-21 10:26:41+00:00", "updated_at": "2026-08-21 11:14:32.849996+00:00", "lang": "en", "topics": ["ai-tools", "ai-safety", "ai-agents"], "entities": ["Vaara MCP Server", "mcpindex", "PyPI", "MCP registry"], "alternates": {"html": "https://wpnews.pro/news/vaara-mcp-server-io-github-vaaraio-vaara-server-1-73-0", "markdown": "https://wpnews.pro/news/vaara-mcp-server-io-github-vaaraio-vaara-server-1-73-0.md", "text": "https://wpnews.pro/news/vaara-mcp-server-io-github-vaaraio-vaara-server-1-73-0.txt", "jsonld": "https://wpnews.pro/news/vaara-mcp-server-io-github-vaaraio-vaara-server-1-73-0.jsonld"}}