pypi

Pypi CLI

PyPI JSON API. Look up Python package metadata, versions, release files, and vulnerability data. Browse recent updates and newest packages via RSS feeds. No authentication required — all endpoints are public.

Created by @hnshah (Hiten Shah).

Install

The recommended path installs both the pypi-pp-cli binary and the pp-pypi agent skill (Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, and other agents supported by the upstream skills CLI) in one shot:

npx -y @mvanhorn/printing-press-library install pypi

For CLI only (no skill):

npx -y @mvanhorn/printing-press-library install pypi --cli-only

For skill only — installs the skill into the same agents as the default command above, but skips the CLI binary (use this to update or reinstall just the skill):

npx -y @mvanhorn/printing-press-library install pypi --skill-only

To constrain the skill install to one or more specific agents (repeatable — agent names match the skills CLI):

npx -y @mvanhorn/printing-press-library install pypi --agent claude-code
npx -y @mvanhorn/printing-press-library install pypi --agent claude-code --agent codex

Without Node (Go fallback)

If npx isn't available (no Node, offline), install the CLI directly via Go (requires Go 1.26.6 or newer):

go install github.com/mvanhorn/printing-press-library/library/developer-tools/pypi/cmd/pypi-pp-cli@latest

This installs the CLI only — no skill.

Pre-built binary

Download a pre-built binary for your platform from the latest release. On macOS, clear the Gatekeeper quarantine: xattr -d com.apple.quarantine <binary>. On Unix, mark it executable: chmod +x <binary>.

Install for Hermes

Install the CLI binary first. The installer writes binaries to a per-user managed bin directory by default: $HOME/.local/bin on macOS/Linux and %LOCALAPPDATA%\Programs\PrintingPress\bin on Windows.

npx -y @mvanhorn/printing-press-library install pypi --cli-only

Then install the focused Hermes skill.

From the Hermes CLI:

hermes skills install mvanhorn/printing-press-library/cli-skills/pp-pypi --force

Inside a Hermes chat session:

/skills install mvanhorn/printing-press-library/cli-skills/pp-pypi --force

Restart the Hermes session or gateway if the newly installed skill is not visible immediately.

Install for OpenClaw

Install both the CLI binary and the focused OpenClaw skill. The installer defaults binaries to a per-user bin directory ($HOME/.local/bin on macOS/Linux, %LOCALAPPDATA%\Programs\PrintingPress\bin on Windows):

npx -y @mvanhorn/printing-press-library install pypi --agent openclaw

Restart the OpenClaw session or gateway if the newly installed skill is not visible immediately.

Use with Claude Desktop

This CLI ships an MCPB bundle — Claude Desktop's standard format for one-click MCP extension installs (no JSON config required).

To install:

1. Download the .mcpb for your platform from the latest release.
2. Double-click the .mcpb file. Claude Desktop opens and walks you through the install.

Requires Claude Desktop 1.0.0 or later. Pre-built bundles ship for macOS Apple Silicon (darwin-arm64) and Windows (amd64, arm64); for other platforms, use the manual config below.

Manual JSON config (advanced)

If you can't use the MCPB bundle (older Claude Desktop, unsupported platform), install the MCP binary and configure it manually.

go install github.com/mvanhorn/printing-press-library/library/other/pypi/cmd/pypi-pp-mcp@latest

Add to your Claude Desktop config (~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "pypi": {
      "command": "pypi-pp-mcp"
    }
  }
}

Quick Start

1. Install

See Install above.

2. Verify Setup

pypi-pp-cli doctor

This checks your configuration.

3. Try Your First Command

pypi-pp-cli rss newest-packages

Usage

Run pypi-pp-cli --help for the full command reference and flag list.

Commands

pypi

Manage pypi

rss

RSS feeds for recent updates and newest packages

• pypi-pp-cli rss newest-packages - RSS feed of the newest packages added to PyPI.
• pypi-pp-cli rss recent-updates - RSS feed of the most recently updated packages on PyPI.

Output Formats

# Human-readable table (default in terminal, JSON when piped)
pypi-pp-cli rss newest-packages

# JSON for scripting and agents
pypi-pp-cli rss newest-packages --json

# Filter to specific fields
pypi-pp-cli rss newest-packages --json --select id,name,status

# Dry run — show the request without sending
pypi-pp-cli rss newest-packages --dry-run

# Agent mode — JSON + compact + no prompts in one flag
pypi-pp-cli rss newest-packages --agent

Agent Usage

This CLI is designed for AI agent consumption:

• Non-interactive - never prompts, every input is a flag
• Pipeable - --json output to stdout, errors to stderr
• Filterable - --select id,name returns only fields you need
• Previewable - --dry-run shows the request without sending
• Read-only by default - this CLI does not create, update, delete, publish, send, or mutate remote resources
• Offline-friendly - sync/search commands can use the local SQLite store when available
• Agent-safe by default - no colors or formatting unless --human-friendly is set

Exit codes: 0 success, 2 usage error, 3 not found, 5 API error, 7 rate limited, 10 config error.

Health Check

pypi-pp-cli doctor

Verifies configuration and connectivity to the API.

Configuration

Config file: ~/.config/pypi-pp-cli/config.toml

Troubleshooting

Not found errors (exit code 3)

• Check the resource ID is correct
• Run the list command to see available items

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