Hex.pm MCP
Hex.pm MCP is an MCP server that exposes 22 tools to an agent, covering toolbox, read & search, audit. It is available as a remote MCP endpoint.
Teams that work with toolbox and audit and want a hosted endpoint instead of running a local process. The project is written in Elixir.
VERIFIED ACTIVE
LAST COMMIT 2026-09-27 · ★ 2 · #855 OF 998 MAINTAINED OTHER · VERIFIED 2026-09-30
MIT · Elixir · how we verify → /methodology
01 · Install Hex.pm MCP
before you install - you'll need
Set MIX_ENV, HEXPM_MCP_BUILD_PATH before connecting.
Claude Code
claude mcp add joshrotenberg-hexpm-mcp --transport http https://hexpm-mcp.fly.dev/mcp Claude Desktop / Cursor / VS Code - add to config
{
"mcpServers": {
"joshrotenberg-hexpm-mcp": {
"url": "https://hexpm-mcp.fly.dev/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://hexpm-mcp.fly.dev/mcp
transport: streamable-http
endpoint alive - responded to MCP initialize · probed 2026-09-30
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 remote - your agent's requests go to hexpm-mcp.fly.dev
endpoint auth accepted our unauthenticated MCP initialize - no credentials needed to connect
license MIT - declared in the repository
registry namespace io.github.joshrotenberg is GitHub-verified and matches the repo owner
03 · What Hex.pm MCP can do
Prose above is summarized from the project's README and registry record - no invented capabilities.
What you can build
With this server connected, an agent can search packages by name/keywords with sorting and pagination, download statistics (all-time, recent, weekly, daily), search within a package's documentation, and find and compare similar packages.
Capability map
Tools grouped from the project's README - what Hex.pm MCP lets an agent do.
Toolbox
5 tools - e.g. Browse the curated taxonomy of groups and categories; List the categories in a single group; Curated projects in a category (sortable by name or downloads)
toolbox_groups · toolbox_group · toolbox_category · toolbox_trending · toolbox_search
read & search
3 tools - e.g. Search packages by name/keywords with sorting and pagination; README content as markdown; Search within a package's documentation
search · readme · search_docs
Audit
2 tools - e.g. Dependency risk audit (retired versions, staleness, bus factor, CVEs); Audit a deps list for staleness, retirement, CVEs, and bus factor
audit · audit_mix_deps
Info
1 tool - e.g. Package metadata, description, links, download stats
info
Versions
1 tool - e.g. Version history with retirement status
versions
Release
1 tool - e.g. Release details, publisher, dependencies, build tools
release
Dependencies
1 tool - e.g. Dependency list for a version
dependencies
Downloads
1 tool - e.g. Download statistics (all-time, recent, weekly, daily)
downloads
Latest releases
v0.3.8 · 2026-09-27
0.3.8 (2026-09-27) · port the MCP layer from anubis_mcp to snodo · serve 2025-11-25 and 2025-06-18 MCP clients
v0.3.7 · 2026-07-26
0.3.7 (2026-07-26) · surface the http endpoint path · repair the installer's default install dir and document Gatekeeper
v0.3.6 · 2026-07-25
0.3.6 (2026-07-25) · bump tinfoil to 0.2.22 so the release tag reaches tinfoil.build
04 · Who maintains Hex.pm MCP
Hex.pm MCP is maintained by joshrotenberg. It's the only MCP server we track from this author; the repo dates to Mar 2026.
05 · Facts
- repository
- github.com/joshrotenberg/hexpm-mcp
- category
- other - ranked #855 of 998 actively-maintained other servers as of 2026-09-30.
- release cadence
- 6 releases in the last 90 days (latest 2026-09-27)
- registry
- io.github.joshrotenberg/hexpm-mcp (active, first published 2026-06-15)
06 · Hex.pm MCP FAQ
Is Hex.pm MCP still maintained?
Yes - as of 2026-09-30, its last commit was 2026-09-27 and it shipped 6 releases in the last 90 days. We re-verify nightly.
What can Hex.pm MCP do?
With this server connected, an agent can search packages by name/keywords with sorting and pagination, download statistics (all-time, recent, weekly, daily), search within a package's documentation, and find and compare similar packages.
How do I install Hex.pm MCP?
Run `claude mcp add joshrotenberg-hexpm-mcp --transport http https://hexpm-mcp.fly.dev/mcp`. The README documents 2 environment variables (MIX_ENV, HEXPM_MCP_BUILD_PATH) to set first. Set MIX_ENV, HEXPM_MCP_BUILD_PATH before connecting. You can also paste the ready-made client config above.
Does Hex.pm MCP require authentication?
No - the endpoint accepted our unauthenticated MCP initialize when probed on 2026-09-30; you can connect without credentials.
07 · Alternatives to Hex.pm MCP
Alternatives to Hex.pm MCP
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