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Hex.pm

hex.pm

Elixir and Erlang package metadata from Hex: releases, requirements, downloads and owners.

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Runs on your machine under the source's own terms

The crw MCP on your computer calls Hex.pm directly. Calls cost no credits and the data does not pass through fastCRW. Install it once for Claude Code, Cursor, Codex, Windsurf, Gemini CLI or OpenCode, with your fastCRW API key in place of the placeholder:

Ask with this source

A prompt for your agent that names this source and how to call it through the crw MCP.

  • Package publish history

    Use Hex.pm (hexpm) from fastCRW Pergamon, capability "Package publish history" (audit-logs). You want to see what has actually happened to a package recently, including retirements and reverts that the version list alone does not reveal. Example options: name=phoenix, page=1. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "hexpm" and capability "audit-logs". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>

  • Packages that depend on a package

    Use Hex.pm (hexpm) from fastCRW Pergamon, capability "Packages that depend on a package" (dependents). You hold a library name and want who depends ON it - use this rather than search (which needs the depends: qualifier typed by hand) or release (which gives the forward dependencies of one version). Example options: package=ecto, page=1, sort=recent_downloads. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "hexpm" and capability "dependents". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>

  • HexDocs documentation search

    Use Hex.pm (hexpm) from fastCRW Pergamon, capability "HexDocs documentation search" (docs-search). You need the actual Elixir or Erlang documentation for a function, module or concept, not registry metadata about a package. Example options: q=genserver, filter_by=package:=plug-1.16.1, per_page=20. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "hexpm" and capability "docs-search". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>

  • Package owners

    Use Hex.pm (hexpm) from fastCRW Pergamon, capability "Package owners" (owners). You want to know who can publish a given Hex package, or how to contact its maintainers. Example options: name=phoenix. Use the crw MCP tools: crw_find_data to confirm the source and its options, then crw_get_data with provider "hexpm" and capability "owners". Tell me the credits used and cite the licence from the response. If the crw MCP tools are missing, install them with: npx -y crw-mcp install --api-key <your fastCRW API key>