# AGENTS.md - Pcgs CLI

You are being asked to install or use the Pcgs CLI from the Printing Press library.

## What it is

pcgs-pp-cli is an agent-native command line tool for Pcgs. The first CLI for the PCGS Public API — cert lookup, full CoinFacts extraction, and the 1,000-call-per-day budget...
It is a single Go binary that ships with an agent skill, and it installs with one command.

## Install

Recommended (installs the binary and the agent skill):

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

Hermes:

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

OpenClaw:

    clawhub install printing-press-library/pcgs

## MCP server

This CLI ships an MCP server (pcgs-pp-mcp) with 12 tools. Point any MCP client at it, including Claude Desktop.

## After install

Call pcgs-pp-cli from the shell, or use the /pp-pcgs skill inside an agent.
Run pcgs-pp-cli --help to list commands.

## Links

- Documentation: https://printingpress.dev/documentation/pcgs
- Library page: https://printingpress.dev/library/other/pcgs
- This file: https://printingpress.dev/documentation/pcgs/agents.md