# Mastercard Developers agent skills for Claude Code, Cursor and RevampKey

> Ready-made Mastercard Developers playbooks for AI agents: mastercard Developers API operation lookup, choose a Mastercard API integration path. Free SKILL.md files for Claude Code, Cursor and Codex, or one click in RevampKey.

## Skills

- [Use the Mastercard Developers connector safely and well](https://revampkey.com/marketplace/mastercard-developers/skills/essentials.md): Guides an AI assistant through reading Mastercard's developer documentation: confirming scope, choosing the right documentation or integration-guide tool, and keeping answers sourced. It is read-only and will not change anything on your account.
- [Mastercard Developers API operation lookup](https://revampkey.com/marketplace/mastercard-developers/skills/api-operation-lookup.md): Finds one specific Mastercard API operation, reads its details and produces a short reference card covering purpose, parameters and what to verify. It marks anything the docs do not establish rather than guessing.
- [Choose a Mastercard API integration path](https://revampkey.com/marketplace/mastercard-developers/skills/integration-path-selection.md): Works out which auth model fits your use case (OAuth 1.0a, OAuth 2.0 or Open Finance), pulls the matching integration guide, and returns an ordered build path with the prerequisites to check first. It only reads documentation and does not change any account settings.

## Install

- RevampKey: connect Mastercard Developers at https://revampkey.com/marketplace/mastercard-developers; the skills come with it.
- Any Agent Skills tool, into the current project:

```bash
for s in essentials api-operation-lookup integration-path-selection; do
  curl -fsSL --create-dirs -o .agents/skills/mastercard-developers-$s/SKILL.md https://revampkey.com/marketplace/mastercard-developers/skills/$s/SKILL.md
done
```

### What is a Mastercard Developers agent skill?

A SKILL.md file: a short playbook an AI agent loads when your request matches it. Each Mastercard Developers skill describes one job, which Mastercard Developers tools to use in which order, what to check first and when to stop and ask you.

### Do the Mastercard Developers skills change anything on their own?

3 of the 3 only read. The others tell the agent to show you the change and wait for a yes before it creates, edits or deletes anything in Mastercard Developers.

### Which tools can use these skills?

Any agent that reads the open Agent Skills format: Claude Code, Cursor, Codex, VS Code with Copilot and RevampKey. In RevampKey they are attached when you connect Mastercard Developers; elsewhere you copy the folders into your project or skills directory.

### Do I need the Mastercard Developers MCP server too?

Yes. The skills tell the agent how to do the work; the Mastercard Developers MCP server gives it the tools to do it. The Mastercard Developers MCP setup guide covers every client.

MCP setup guide: https://revampkey.com/marketplace/mastercard-developers.md