SemverKit

Connect it to your AI

Claude Code

claude mcp add --transport http semverkit https://semverkit.mike-tusa.workers.dev/mcp

Claude, ChatGPT, Cursor and other apps

Add it as a custom connector with this URL (Streamable HTTP):

https://semverkit.mike-tusa.workers.dev/mcp

Cursor, VS Code and other apps (mcp.json)

{
  "mcpServers": {
    "semverkit": {
      "url": "https://semverkit.mike-tusa.workers.dev/mcp"
    }
  }
}

Tools it offers

5 tools, as the server itself reported during our check on Oct 31, 2026.

• parse_versionValidate a version against SemVer 2.0.0 and split it into major, minor, patch, prerelease identifiers and build metadata, with isPrerelease/isStable flags. Read-only. Same engine as GET /api/parse.
• compare_versionsCompare a and b by SemVer precedence (prereleases sort before the release, build metadata ignored). Returns -1, 0 or 1 and the change type from the lower to the higher version (major, minor, patch, premajor, preminor, pr
• check_rangeDoes a version satisfy an npm-style range (^, ~, x-ranges, hyphen ranges, comparators, || alternatives)? Returns the answer and the range desugared into plain comparators (e.g. ^0.2.3 → >=0.2.3 <0.3.0-0), with a note whe
• resolve_versionsSort 1 to 200 versions by SemVer precedence (duplicates removed, invalid ones listed separately) and, if a range is given, return the matching versions plus maxSatisfying / minSatisfying (what npm would install from that
• bump_versionCompute the next version for a release type (major, minor, patch, premajor, preminor, prepatch, prerelease, release), with an optional prerelease id such as alpha, beta or rc, exactly like npm version / semver.inc. Read-

Questions