Hex.pm

live Developer

Hex.pm package registry for Elixir and Erlang: look up packages, search by keyword, fetch release metadata and version history.

4 tools
0ms auth
free tier 50 calls/day

Tools

get_package

Look up a single Hex.pm package (Elixir/Erlang mix package) by name. Returns description, licenses, links, latest version, and download counts.

No parameters required.

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search_packages

Search the Hex.pm registry for Elixir/Erlang mix packages by keyword. Returns a list of matching packages with descriptions, latest versions, and downloads.

No parameters required.

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get_release

Get details for a specific version (release) of a Hex.pm package (Elixir/Erlang mix package): dependency requirements, docs availability, publisher, and downloads.

No parameters required.

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list_releases

List all published versions (releases) of a Hex.pm package (Elixir/Erlang mix package), each with its version and publish date.

No parameters required.

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Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/hex_pm/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/hex_pm/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"get_package","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("get_package", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("hex");