Codemap Mcp
by bbajtcommunityv1.4.0
6
CodeMap is a Roslyn-powered MCP server that indexes C#, VB.NET, and F# solutions to let AI agents query symbols, references, call graphs, and architectural facts instead of reading source files directly. It supports semantic navigation across solution files, DLL boundaries, and workspace overlays for uncommitted edits.
From the registry: Roslyn-powered MCP server for C#/VB.NET. Query symbols, call graphs, and facts. 90%+ token savings.
Install & configure
Prerequisites
- required.NET 10 SDKInstall .NET 10 SDK. Verify with `dotnet --version`.
https://dotnet.microsoft.com/download/dotnet/10.0$ winget install Microsoft.DotNet.SDK.10 - requiredInstall codemap-mcp toolInstall as a .NET global tool.
https://www.nuget.org/packages/codemap-mcp$ dotnet tool install --global codemap-mcp
Install in your client
Paste into the AI you're chatting with — it will figure out the rest
Please install the `codemap-mcp` MCP server into my current AI client (that's you).
Required prerequisites (do these first if not already done):
- **.NET 10 SDK** — Install .NET 10 SDK. Verify with `dotnet --version`. Run: `winget install Microsoft.DotNet.SDK.10` (https://dotnet.microsoft.com/download/dotnet/10.0)
- **Install codemap-mcp tool** — Install as a .NET global tool. Run: `dotnet tool install --global codemap-mcp` (https://www.nuget.org/packages/codemap-mcp)
Canonical MCP server config (stdio transport):
- command: `codemap-mcp`
- args: []
- optional environment variables:
- `CODEMAP_CACHE_DIR`: Shared baseline cache directory. (example: `/shared/codemap-cache`)
- `CODEMAP_ENGINE`: Storage engine override (e.g., 'sqlite' for legacy v1 engine). (example: `sqlite`)
Note: C#/VB.NET/F# semantic indexer. Distributed via NuGet as a .NET global tool.
Add this MCP server to my current client's config in the correct format for you. If you need secrets or credentials I haven't provided, ASK me — do not invent values or leave raw placeholders. After adding it, tell me how to verify the server is connected.Note: C#/VB.NET/F# semantic indexer. Distributed via NuGet as a .NET global tool.
Tools (28)
symbols.search
FTS search by name, kind, namespace, or file path
code.search_text
Regex/substring search across source files, returning file:line:excerpt
symbols.get_card
Full symbol metadata plus architectural facts and source code
symbols.get_context
Symbol card, source, and all callees with source for deep understanding
symbols.get_definition_span
Raw source only, no extra metadata
code.get_span
Read a source excerpt by line range
refs.find
Find all references to a symbol, classified by relationship type
graph.callers
Depth-limited caller graph showing who triggers a symbol
graph.callees
Depth-limited callee graph showing what a symbol orchestrates
graph.trace_feature
Annotated feature flow/call tree with architectural facts at each node
types.hierarchy
Show base type, implemented interfaces, and derived types
codemap.summarize
Full codebase overview of endpoints, DI, config, DB, middleware, and logging
codemap.export
Environment variables
CODEMAP_ENGINErequiredSelects the index engine; set to sqlite to use the old engine temporarilyPackages
codemap-mcp
nugetv1.4.0transport: stdio
Details
- Language
- C#
- License
- NOASSERTION
- Released
- Apr 2, 2026
- Last commit
- May 11, 2026
- Registry name
- io.github.bbajt/codemap-mcp