Dep Diff MCP

MCP server that translates a lockfile diff into a human-readable upgrade plan. Point your AI assistant (Cursor, Claude Desktop, Claude Code) at a Dependabot PR, npm outdated output, or any pair of package versions, and get back a ranked upgrade plan: semver class, breaking changes pulled from GitHub release notes, CVEs fixed in the range, migration guide links, and a clear recommendation per package.

People connecting security tools to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.

VERIFIED ACTIVE

LAST COMMIT 2026-04-25 · ★ 2 · #117 OF 182 MAINTAINED SECURITY · VERIFIED 2026-08-25

MIT · TypeScript servers · how we verify → /methodology

01 · Install Dep Diff MCP

before you install - you'll need

GITHUB_TOKEN

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

Claude Code

claude mcp add digicatalyst-systems-dep-diff-mcp --transport http https://dep-diff.digicatalyst.ca/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "digicatalyst-systems-dep-diff-mcp": {
      "url": "https://dep-diff.digicatalyst.ca/mcp"
    }
  }
}

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

https://dep-diff.digicatalyst.ca/mcp

transport: streamable-http

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 · remote - your agent's requests go to dep-diff.digicatalyst.ca

license MIT - declared in the repository

npm package @digicatalyst/dep-diff-mcp - the @digicatalyst scope differs from the repo owner (digicatalyst-systems); confirm it's the project's official package

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

03 · What Dep Diff MCP can do

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

What you can build

An agent gets 2 documented tools, including analyze_package_change, analyze_packages_bulk.

The 2 tools it gives your agent

Extracted from the project's README - what dep-diff-mcp lets an agent do.

analyze_package_change
- Analyze one package upgrade. Inputs: ecosystem (npm or pypi), name, fromVersion, toVersion.
analyze_packages_bulk
- Analyze up to 50 package upgrades in parallel. Returns packages ranked by risk (security > caution > review > likely-safe > safe), plus summary counts.

Latest releases

v0.1.10 · 2026-04-23

Fixed · Install snippets in README, blog post, and project .mcp.json switched from bare npx -y @digicatalyst/dep-diff-mcp to the explicit npx -y -p @digicatalyst/dep-diff-mcp@latest dep-diff-mcp form. The bare form…

v0.1.9 · 2026-04-23

Removed · Reverted the Cloudflare Analytics Engine binding and emission code introduced in 0.1.8. Analytics Engine requires a Cloudflare Workers Paid plan; the deploy failed on our free-plan account. PRIVACY.md updated…

v0.1.7 · 2026-04-23

Added · Tool annotations on both tools (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) - lets clients + catalogs like Smithery reason about tool safety without invoking them. · Two prompts registered on…

04 · Who maintains Dep Diff MCP

dep-diff-mcp is maintained by digicatalyst-systems. It's the only MCP server we track from this author; the repo dates to Apr 2026.

05 · Facts

category
security - ranked #117 of 182 actively-maintained security servers as of 2026-08-25.
registry
io.github.DigiCatalyst-Systems/dep-diff-mcp (active, first published 2026-04-23 · 9 versions)
packages
npm:@digicatalyst/dep-diff-mcp

06 · Dep Diff MCP FAQ

What is Dep Diff MCP?

MCP server that translates a lockfile diff into a human-readable upgrade plan. Point your AI assistant (Cursor, Claude Desktop, Claude Code) at a Dependabot PR, npm outdated output, or any pair of package versions, and get back a ranked upgrade plan: semver class, breaking changes pulled from GitHub release notes, CVEs fixed in the range, migration guide links, and a clear recommendation per package.

Is Dep Diff MCP still maintained?

Yes - as of 2026-08-25, its last commit was 2026-04-25. We re-verify nightly.

How do I install Dep Diff MCP?

Run `npx -y @digicatalyst/dep-diff-mcp`. The README documents one environment variable (GITHUB_TOKEN) to set first. You can also paste the ready-made client config above.

Does Dep Diff MCP 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 Dep Diff MCP

More security MCP servers · Screenshot · Envault · Conarium · Megalinter · Draugr

More TypeScript MCP servers · Simap MCP · Debugger · Token Pilot · see all