Code Atlas MCP server

Read from the package source without running it. The installed server may list more.

• ast_querywrite action

  Run a raw tree-sitter S-expression query over indexed files of one language and return every capture

• batch_symbols

  Compact one-line info for up to 50 symbol ids in a single call — resolve the #ids from

• call_hierarchy

  Who calls this symbol (direction=in) or what it calls (direction=out), as a tree up to `depth` levels.

• change_coupling

  Which files historically change together with this one? Directional: "when I touch A, B changes

• change_impact

  Blast radius of a change: transitive callers/subtypes of the target plus files reachable

• context_pack

  One-call, token-budgeted briefing on a symbol: definition source, surrounding file outline,

• find_asset_references

  Reverse lookup across engine assets: which scenes/prefabs/Blueprints reference this script,

• find_dead_code

  Symbols nothing references: no resolved occurrence and no graph edge points at them, after

• find_references

  Usages of a symbol. Uses the exact language server when one is available (provenance lsp),

• find_route

  Which code serves this URL? Matches a concrete request path (e.g. "/api/users/7") against

• find_similar_code

  Does a helper for this already exist? Near-duplicate search over the indexed code: target an

• generate_diagram

  Render index data as a Mermaid diagram (returned in a ```mermaid fence — paste into GitHub

• get_dependencies

  What a file imports (direction=out) or which files import it (direction=in).

• get_file_outline

  Hierarchical outline of every definition in a file, with signatures — read the structure of a file

• get_scene_structure

  Node tree of a game-engine scene file with attached scripts, instanced sub-scenes, and

• get_symbol_info

  Full detail for one symbol: signature, doc comment, location, container — and optionally its source.

• go_to_definition

  Definition site of the identifier at a file position. Uses the exact language server when

• hotspots

  Risk-ranked files: git commit churn over a window multiplied by current size

• index_status

  Indexing progress, per-file errors, and freshness of the code index.

• list_routes

  Web-framework routes indexed across the workspace (Express, Fastify, NestJS, FastAPI, Flask,

• project_overview

  Cheap orientation router: languages, file/symbol counts, index freshness, top-level layout,

• reindex

  Force an incremental re-scan of the workspace (hash-checks every file, reindexes changed ones).

• repo_map

  Annotated architecture map of the workspace — the first call to make in an unfamiliar repo.

• search_reflection

  Find engine-reflected declarations: Unreal UCLASS/UPROPERTY/UFUNCTION specifiers

• search_symbols

  Search definitions (functions, classes, methods, …) by name across the whole workspace.

• semantic_search

  Natural-language search over the code: describe behavior ("where is retry backoff implemented",

• symbol_history

  How did this symbol get this way? Line-range git history (git log -L) for the symbol's span:

• tests_for_symbol

  Which tests exercise this symbol? Walks the call/type graph backwards from the target to

• trace_path

  Shortest call chain from one symbol to another over the indexed call graph —

• type_hierarchy

  Supertypes (direction=super: what this type extends/implements) or subtypes

• verify_changeswrite action

  Post-edit structural check of the uncommitted working tree (or explicit files) against git HEAD:

• Code scan185 source files scanned25/25
• –Live reliabilityno gateway calls yet and no remote to proben/a
• –Tool poisoningtools not inspected (local package is not executed); not countedn/a
• Auth qualitylocal package, no credentials required12/15
• Maintenancelast push 52 days ago12/15
• Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Safety score

88/100

higher than 80% of 3,470 Web search servers

Tools

31

the typical Web search server has 5

Tools that change things

6%

typical: 0%. Fewer write tools means less an agent can break

Downloads a week

30

more than 16% of 827 Web search servers with a package

Code Atlas: common questions

Is Code Atlas MCP server safe?

Yes, by our scan: it is graded A (88/100). Read the Code Atlas safety report

How do I install Code Atlas?

It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.

Does Code Atlas need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Code Atlas maintained?

The last commit was 92 days ago (2026-08-04). The latest release is v0.5.0.

What can I use instead of Code Atlas?

Servers from other publishers that do the same job: Crg MCP server, Codeseeker MCP server and The Company Atlas MCP server.

How does Code Atlas compare with other Web search MCP servers?

safety score 88/100 (higher than 80% of 3,470 Web search servers); tools 31 (the typical Web search server has 5); tools that change things 6% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.