Tacit MCP (ucl-sbde/tacit-mcp) is an MCP server listed on the M8ven Trust Index. It scores 68 out of 100, grade C. It declares 4 tools. No publisher has claimed this listing.
Connects AI assistants to Tacit building digital twins to query buildings, equipment, sensors, and zones using natural language. It provides tools for exploring Brick-compliant knowledge graphs, fetching historical sensor data, and accessing site documents.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
tacit_list_filesList documents and files associated with a site. Returns metadata for files uploaded to a site: spec sheets, maintenance documents, BIM source files, 3D models, and knowledge graph data. Useful for answering questions like "What documentation exists for this building?" or "Are there spec sheets fo…
tacit_graphqltacit_list_sitesList all building sites the current API key has access to. Each site represents a physical location (building, campus, warehouse) managed in Tacit. Sites are the top-level container. You need a site ID to query buildings, equipment, points, zones, and systems. Returns: Array of sites with id, name…
tacit_timeseriesQuery historical or live sensor data for one or more points. Points are identified by their timeseriesId (UUID). Use tacit_graphql first to find points and their timeseriesId values. Args: - site_id (string, required): The site ID - point_ids (string, required): Comma-separated timeseriesId UU…
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
HOST0.0.0.0 Bind addressMCP_PATH/mcp MCP endpoint pathTACIT_API_KEY"": "your-api-key"TACIT_API_URLNo https://app.betacit.com API base URL (for self-hosted deployments)TACIT_OAUTH_ISSUERSet to enable OAuth 2.1 modePORTTool inputs are validated
3/4 tool handlers declare input schemas (75%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tests exist
No test files found
Add tests that exercise each declared tool.
Secrets not logged
1 secret value sent to console.log
Redact or omit secret values from log output.
Production dependencies are patched
0 critical, 2 high severity in production deps — @modelcontextprotocol/sdk@1.6.1 (high), @modelcontextprotocol/sdk@1.6.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Domain consistency
npm scope @tacit doesn't match GitHub owner ucl-sbde
Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.
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