Hex.pm MCP

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

MCP server for hex.pm and hexdocs.pm: search, inspect, compare, and audit Elixir packages

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "Hex.pm MCP": {
      "url": "https://hexpm-mcp.fly.dev/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (24)

• alternatives

  Find alternative packages

  Parameters:

  • name (required) — string — Package name on hex.pm

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• audit

  Audit package dependencies for risks

  Parameters:

  • name (required) — string — Package name on hex.pm
  • version — string — Release version (defaults to latest)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• audit_mix_deps

  Audit mix.exs dependencies for risks

  Parameters:

  • deps (required) — string — Mix.exs deps list as text, e.g. {:phoenix, "~> 1.7"}, {:ecto, "~> 3.10"}

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• compare

  Compare 2-5 packages side by side

  Parameters:

  • packages (required) — string — Comma-separated list of package names (2-5 packages)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• dep_tree

  Build a package dependency tree

  Parameters:

  • name (required) — string — Package name on hex.pm
  • version — string — Release version (defaults to latest)
  • max_depth — integer — Maximum depth to traverse (default 5, max 5)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• dependencies

  Get dependencies for a package version

  Parameters:

  • name (required) — string — Package name on hex.pm
  • version — string — Release version (defaults to latest)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• doc_item

  Get documentation for a module or function

  Parameters:

  • name (required) — string — Package name on hex.pm
  • module (required) — string — Module name (e.g. "Plug.Conn")
  • version — string — Package version (defaults to latest)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• docs

  Browse a package documentation module listing

  Parameters:

  • name (required) — string — Package name on hex.pm
  • version — string — Package version (defaults to latest)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• downloads

  Get package download statistics

  Parameters:

  • name (required) — string — Package name on hex.pm

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• features

  Get optional features for a package release

  Parameters:

  • name (required) — string — Package name on hex.pm
  • version — string — Release version (defaults to latest)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• health

  Run a comprehensive package health check

  Parameters:

  • name (required) — string — Package name on hex.pm

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• info

  Get detailed package information

  Parameters:

  • name (required) — string — Package name on hex.pm

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• owners

  Get package owners and maintainers

  Parameters:

  • name (required) — string — Package name on hex.pm

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• readme

  Get package README content

  Parameters:

  • name (required) — string — Package name on hex.pm
  • version — string — Package version (defaults to latest)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• release

  Get detailed package release information

  Parameters:

  • name (required) — string — Package name on hex.pm
  • version (required) — string — Release version (e.g. "1.8.5")

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• search

  Search hex.pm packages

  Parameters:

  • query (required) — string — Search query string
  • page — integer — Page number (default 1)
  • sort — string — Sort by: name, recent_downloads, total_downloads, inserted_at, updated_at

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• search_docs

  Search within package documentation

  Parameters:

  • name (required) — string — Package name on hex.pm
  • query (required) — string — Search query
  • version — string — Package version (defaults to latest)

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• toolbox_category

  List projects in a Toolbox category

  Parameters:

  • group (required) — string — Group slug (e.g. "web", "ai")
  • category (required) — string — Category slug within the group (e.g. "frameworks")
  • sort — string — Ordering: "name" (alphabetical) or "downloads"; defaults to popularity order

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• toolbox_group

  List categories in a Toolbox group

  Parameters:

  • group (required) — string — Group slug (e.g. "web", "ai")

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• toolbox_groups

  Browse the Elixir Toolbox taxonomy

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• toolbox_search

  Search packages through Elixir Toolbox

  Parameters:

  • query (required) — string — Search query string

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• toolbox_trending

  List trending Elixir packages

  Parameters:

  • limit — integer — Maximum number of projects to return

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• upgrade_check

  Check mix.exs dependencies for upgrades

  Parameters:

  • deps (required) — string — Mix.exs deps list as text, e.g. {:phoenix, "~> 1.7"}, {:ecto, "~> 3.10"}

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• versions

  List all package versions

  Parameters:

  • name (required) — string — Package name on hex.pm

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

Publisher website Repository

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.