RVTDocs

Local-first MCP server for Revit API documentation. Downloads once, searches instantly.

Tools

Tool	Purpose	Latency
rvtdocs_search	Keyword search across 28K+ API entries	~7ms
rvtdocs_scan	Browse namespace or class members	~1ms
rvtdocs_diff	Compare APIs between Revit versions	~1ms
rvtdocs_fetch	Fetch full page documentation	50-500ms

How it works

1. On first query per year, downloads the API tree index from rvtdocs.com (~7MB)
2. Caches permanently in %APPDATA%/rvtdocs-mcp/ (Windows) or ~/.cache/rvtdocs-mcp/ (Unix)
3. Builds in-memory searchable index (28K entries, ~350ms load)
4. All search/scan/diff are local with <10ms latency

Workflow

# 1. Explore with vague query (zero prior knowledge needed)
rvtdocs_search(query="electrical circuit", year="2025")
-> namespaces, classes, methods ranked by relevance

# 2. Browse discovered namespace
rvtdocs_scan(target="Autodesk.Revit.DB.Electrical", types="class")
-> 78 classes in that namespace

# 3. Check version compatibility
rvtdocs_diff(from_year="2025", to_year="2027", scope="Autodesk.Revit.DB.Structure")
-> +181 added, -40 removed (classes + methods)

# 4. Fetch detail for specific API
rvtdocs_fetch(url="https://rvtdocs.com/2025/Autodesk.Revit.DB.Connector")
-> full documentation with description, methods table, remarks

Install

From git (production)

{
  "mcpServers": {
    "rvtdocs-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": ["--from", "git+https://github.com/trgiangv/rvtdocs-mcp.git", "rvtdocs-mcp"]
    }
  }
}

From local source (development)

{
  "mcpServers": {
    "rvtdocs-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": ["--from", "/path/to/rvtdocs-mcp", "rvtdocs-mcp"]
    }
  }
}

Requirements

• Python >= 3.12
• Dependencies: mcp, httpx, trafilatura

Supported Revit versions

2022, 2023, 2024, 2025, 2026, 2027