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sumup

Skill

Implement SumUp checkout flows end-to-end. Use when writing or reviewing SumUp Checkouts API calls, Card Widget mounts, Hosted Checkout setup, recurring tokenization, Terminal SDK / Cloud API reader checkouts, or 3DS / webhook handling.

0Developer Tools

Install

git clone https://github.com/sumup/sumup-skills.git ~/.claude/skills/sumup

What is sumup?

Implement SumUp checkout flows end-to-end. Use when writing or reviewing SumUp Checkouts API calls, Card Widget mounts, Hosted Checkout setup, recurring tokenization, Terminal SDK / Cloud API reader checkouts, or 3DS / webhook handling.

What this can do

Capabilities declared in this component's own frontmatter — not inferred.

Inherit all session tools

Declares no tool restrictions — inherits every session tool

~59 tokens of context used while enabled, before you invoke anything

Documentation

README · ~4 min read

SumUp Checkout Integrations

Knowledge and APIs can change. Always prefer the latest SumUp docs in markdown format over stale memory.

  • Docs root: https://developer.sumup.com/
  • LLM entrypoint: https://developer.sumup.com/llms.txt
  • Markdown page format example: https://developer.sumup.com/terminal-payments/cloud-api/index.md

Use this skill to implement end-to-end SumUp checkouts for:

  • Terminal payments (native mobile SDKs, Cloud API for Solo, or Payment Switch)
  • Online payments (Card Widget and API-orchestrated checkout flow)

Related Skills

  • sumup-best-practices for integration-path and security decisions.

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