MCP server

Rubygems

io.github.pipeworx-io/rubygems

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

RubyGems MCP — wraps the RubyGems.org public API (free, no auth)

Website Source

At a glance

Type

MCP server

Publisher

pipeworx.io (verified by the MCP Registry)

Status

Working at last check

Tools

47

Token cost

About 27,057 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http rubygems https://gateway.pipeworx.io/rubygems/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.rubygems]
url = "https://gateway.pipeworx.io/rubygems/mcp"

Gemini CLI

{"mcpServers":{"rubygems":{"httpUrl":"https://gateway.pipeworx.io/rubygems/mcp"}}}

Cursor

{"mcpServers":{"rubygems":{"url":"https://gateway.pipeworx.io/rubygems/mcp"}}}

VS Code

{"servers":{"rubygems":{"type":"http","url":"https://gateway.pipeworx.io/rubygems/mcp"}}}

Antigravity

agy mcp add rubygems https://gateway.pipeworx.io/rubygems/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"rubygems","server_url":"https://gateway.pipeworx.io/rubygems/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"rubygems","server_url":"https://gateway.pipeworx.io/rubygems/mcp"}

Tools

• get_dependencies ~148 tokens
  Get the runtime and development dependencies for a specific version of a Ruby gem. Returns each dependency with its version requirement string. Omit version to get the latest.
• get_gem ~143 tokens
  Get full metadata for a published Ruby gem by name. Returns latest version, authors, license, descriptions, download counts, and project/source URLs. Use for "what is gem X?", "tell me about Ruby gem Y", or before calling get_versions/get_dependencies.
• get_reverse_dependencies ~125 tokens
  List gems that depend on this gem. Useful for understanding ecosystem impact ("what depends on Rack?") or risk surface ("how many gems would break if this one had a vulnerability?"). API caps at 50 names per request.
• get_versions ~161 tokens
  Get full version history for a Ruby gem. Returns every published version with release date, download count, Ruby version compatibility, and licenses. Use for "what versions of X exist?" or "when did Y release version Z?".
• search_gems ~177 tokens
  Search RubyGems by keyword in name/description. Returns matching gems sorted by relevance with name, version, downloads, and info text.

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