Ckb MCP Server

Know your code. Change it safely. Ship with confidence. CKB transforms your codebase into a queryable knowledge base. Ask questions, understand impact, find owners, detect dead code - all through CLI, API, or AI assistants. It runs locally over stdio via the published package.

People connecting API integration tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Go.

VERIFIED ACTIVE

LAST COMMIT 2026-07-28 · ★ 108 · #35 OF 250 MAINTAINED API INTEGRATION · VERIFIED 2026-08-25

NOASSERTION · Go servers · how we verify → /methodology

01 · Install Ckb

before you install - you'll need

CKB_REPO

Environment variables documented in the project's README - it lists which are required and which have defaults.

Claude Code

claude mcp add simplyliz-codemcp -- npx -y @tastehub/ckb

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "simplyliz-codemcp": {
      "command": "npx",
      "args": [
        "-y",
        "@tastehub/ckb"
      ]
    }
  }
}

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 @tastehub/ckb - the @tastehub scope differs from the repo owner (simplyliz); confirm it's the project's official package

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

03 · What Ckb can do

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

Limitations (from the README)

CKB excels at: - Static code navigation - finding definitions, references, call graphs - Impact analysis for safe refactoring - Ownership lookup (CODEOWNERS + git blame) - Architecture and module understanding CKB won't help with: - Dynamic dispatch / runtime behavior (use debugger) - Generated code that isn't indexed - Code generation, linting, or formatting - Cross-repo calls (use federation for this)

Latest releases

v9.3.0 · 2026-07-21

Release 9.3.0 - large-repo hardening + Cartographer fast-tier visibility · Release 9.3.0 - Cartographer fast tier ships in npm/Homebrew · add timeout-minutes to release build/finalize jobs

v9.2.0 · 2026-04-25

Highlights · analyzeOutgoingImpact - new MCP/CLI tool answering "what does this symbol call?" (mirror of analyzeImpact). Backed by LIP v2.3.5's query_outgoing_impact and folded through the same ImpactItem pipeline as…

v9.1.0 · 2026-04-16

Highlights · LIP v2.1 integration - three new RPCs wired into the query engine: · stream_context → explainFile surfaces semantically-related symbols (top 10, 2048-token budget) · query_expansion → searchSymbols expands…

04 · Who maintains Ckb

ckb is maintained by simplyliz. It's the only MCP server we track from this author; the repo dates to Dec 2025.

05 · Facts

repository: github.com/simplyliz/codemcp
category: API integration - ranked #35 of 250 actively-maintained API integration servers as of 2026-08-25.
release cadence: 1 release in the last 90 days (latest 2026-07-21)
registry: io.github.SimplyLiz/ckb (active, first published 2026-01-22)
packages: npm:@tastehub/ckb

06 · Ckb FAQ

What is Ckb?

Is Ckb still maintained?

Yes - as of 2026-08-25, its last commit was 2026-07-28 and it shipped 1 release in the last 90 days. We re-verify nightly.

How do I install Ckb?

Run `npx -y @tastehub/ckb`. The README documents one environment variable (CKB_REPO) to set first. You can also paste the ready-made client config above.

Does Ckb 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 Ckb

Alternatives to Ckb

Maintained API integration servers if Ckb isn't the fit.

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