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popbill — Claude Code skill: what it does, how to install

Prepares the agent to interact with South Korean Popbill services for tax invoices, cash receipts, and business checks in test and live setups.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓ 
npx skills add NomaDamas/k-skill --skill popbill -a claude-code
Open on GitHub

What popbill does

The skill configures coding agents to work with the Popbill API in test and production environments. It covers Korean electronic tax invoices, cash receipts, SMS, fax, and KakaoTalk messaging. It also assists with Hometax data collection, bank account inquiries, and verifying whether a business is active or closed.

Under the hood, the skill serves as a stub. It retrieves current operational instructions via npx -y @nomadamas/k-skill@0 instruct popbill. The CLI inspects the environment, distinguishing runtimes like Dolshoi vault or CloakBrowser, and outputs targeted steps. Running the CLI requires Node.js 18+.

Strict safety boundaries apply to every operation. The agent cannot store plaintext credentials, bypass CAPTCHAs, or fake electronic signatures. Any payment, message dispatch, final document submission, or cancellation requires direct human approval beforehand. That makes unattended bulk automation impossible by design.

What it helps with

  • invoke Popbill tax invoice and cash receipt endpoints
  • verify business activity status and corporate registry data
  • configure KakaoTalk, SMS, and fax notifications
  • pull records from Hometax and query bank accounts

Example prompts for the agent

  • Check company status with popbill before sending the tax invoice
  • Set up a test call to the Popbill cash receipt API

How to install popbill

1Skills CLI (Vercel)

npx skills add NomaDamas/k-skill --skill popbill -a claude-code

2Manually: put the files in place

~/.claude/skills/popbill/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/popbill/

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Questions about popbill

How do I install popbill in Claude Code?

Run npx skills add NomaDamas/k-skill --skill popbill -a claude-code in your terminal.

What does the popbill skill do?

It guides the agent through working with South Korean Popbill APIs for invoices, tax receipts, business status checks, and messaging.

What prerequisites does popbill require?

You need Node.js 18 or newer to run npx -y @nomadamas/k-skill@0 instruct popbill, which downloads the full runtime instructions.

Source text

SKILL.md · MIT 
---
name: popbill
description: 팝빌 전자세금계산서·전자명세서·현금영수증·문자·카카오톡·팩스·휴폐업/기업정보·계좌조회·홈택스 수집을 테스트/운영 환경에서 안전하게 호출한다. 돌쇠에서는 공식 표면을 통한 후속 액션까지 진행한다.
license: MIT
metadata:
  category: business
  locale: ko-KR
  phase: v1
---

# popbill

<!-- k-skill:cli-stub — generated by scripts/generate-skill-stubs.js; edit skill.json / instruction.md instead -->

## Get the full instructions (required first step)

Run this and follow its output as the primary instructions for this skill:

```bash
npx -y @nomadamas/k-skill@0 instruct popbill
```

The CLI detects the current runtime (Dolshoi vault/CloakBrowser vs generic) and prints only the applicable instructions, always up to date. Helper files bundled with the CLI are listed by:

```bash
npx -y @nomadamas/k-skill@0 files popbill
```

Keep the CLI and every coding-agent skill install current (including Vercel Agent Skills) with:

```bash
npx -y @nomadamas/k-skill@0 update
```

If `npx` is unavailable, install Node.js 18+ or follow https://github.com/NomaDamas/k-skill#readme, or read the source instructions at https://github.com/NomaDamas/k-skill/blob/main/popbill/instruction.md.

## Legal disclaimer (required)

This skill is not an official feature of, officially supported by, affiliated with, sponsored by, approved by, or developed in collaboration with any third-party trademark owner or service operator it identifies. Third-party names are used only to describe the skill's function, lookup target, or compatibility.

Any automated collection of publicly accessible information must be limited to personal, non-organizational lookup. Do not use this skill for systematic or bulk crawling, database building, access-control or block circumvention, or conduct that interferes with a third party's business or service.

Read the full Korean legal disclaimer, including the cited Korean Supreme Court precedents and statutory limits, before use:

```bash
npx -y @nomadamas/k-skill@0 read popbill references/DISCLAIMER.md
```

## Hard rules even without the CLI

- Never execute payment, message/email delivery, final submission, cancellation, or public posting without the user's explicit approval immediately beforehand.
- Never ask for, print, or store plaintext credentials in chat, files, or shell arguments.
- Never bypass legal, physical-presence, CAPTCHA, identity-proofing, or electronic-signature boundaries.

© NomaDamas · MIT · NomaDamas/k-skill

See also

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