Codebase Synapse MCP Server

Give your AI agent a deep understanding of your entire codebase. An MCP server that indexes your codebase into a local knowledge graph with 52 AI tools - semantic search, call-graph traversal, git archaeology, blast-radius analysis, and more.

People connecting coding agent tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Rust.

VERIFIED ACTIVE

LAST COMMIT 2026-08-03 · ★ 2 · #151 OF 250 MAINTAINED CODING AGENT · VERIFIED 2026-09-30

NOASSERTION · Rust servers · how we verify → /methodology

01 · Install Codebase Synapse

Claude Code

claude mcp add iwiels-codebase-synapse -- npx -y codebase-synapse

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "iwiels-codebase-synapse": {
      "command": "npx",
      "args": [
        "-y",
        "codebase-synapse"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license no standard license detected - usage rights unclear; check the repo before commercial use

npm package codebase-synapse - unscoped; check the name against the project README before installing

registry namespace io.github.iwiels is GitHub-verified and matches the repo owner

03 · What Codebase Synapse can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.1.16 · 2026-08-03

v0.1.15 · 2026-07-31

v0.1.14 · 2026-07-31

04 · Who maintains Codebase Synapse

codebase-synapse is maintained by iwiels. It's the only MCP server we track from this author; the repo dates to Jun 2026.

05 · Facts

repository: github.com/iwiels/codebase-synapse
category: coding agent - ranked #151 of 250 actively-maintained coding agent servers as of 2026-09-30.
release cadence: 10+ releases in the last 90 days (latest 2026-08-03)
registry: io.github.iwiels/codebase-synapse (active, first published 2026-07-28)
packages: npm:codebase-synapse

06 · Codebase Synapse FAQ

What is Codebase Synapse?

Is Codebase Synapse still maintained?

Yes - as of 2026-09-30, its last commit was 2026-08-03 and it shipped 10+ releases in the last 90 days. We re-verify nightly.

How do I install Codebase Synapse?

Run `npx -y codebase-synapse`. You can also paste the ready-made client config above.

Does Codebase Synapse run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Codebase Synapse

Alternatives to Codebase Synapse

Maintained coding agent servers if Codebase Synapse isn't the fit.

Pairs well with

Servers that cover what Codebase Synapse doesn't - only shown when the pairing reason fits the companion.

More coding agent MCP servers · Nexus MCP · Lurq · Repo Graph · Orca MCP Server · Codemem

More Rust MCP servers · Ferritin - Rust documentation · Apprise RMCP (jmagar) · Arcane RMCP (jmagar) · Gotify RMCP (jmagar) · Synapse RMCP (jmagar) · see all