api-mocking
Skill from postmanlabs/postman-plugin
Install
npx skills add postmanlabs/postman-plugin --skill api-mocking
Runs the open skills CLI and installs the skill for your agent (Claude Code, Codex, Cursor …). Alternatively copy the skill folder into .claude/skills/ or upload it in Claude.ai under Settings → Skills.
As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-official
/plugin install postman@postman
This skill is part of the plugin “postman”. In Claude Code the plugin installs it together with the plugin’s other skills, commands and hooks.
What does the api-mocking skill do?
Description from the SKILL.md in the source repository.
Questions about api-mocking
What does the api-mocking skill do?
Finds, builds, runs and publishes a stand-in for one API — the owning team's published mock when there is one, otherwise one built from its spec or collection that behaves like the real API, stateful when callers write then read. Use when something needs an API that isn't built or reachable yet (a frontend, client or demo), when other teams should build against your API before it ships, or when asked to mock an API or fake a backend. To run and test your own code against the services it calls, use api-simulation. Covers `postman mock` and `postman dependency add mock`.
How do I install api-mocking?
In a terminal: npx skills add postmanlabs/postman-plugin --skill api-mocking. The skills CLI asks which agents to install it for. In Claude.ai you can upload the skill folder as a ZIP under Settings → Skills.
Which agents can use api-mocking?
Skills use the open SKILL.md format, which Claude Code, Claude.ai, the Claude API, OpenAI Codex, Cursor, Gemini CLI and other agents support.
Is api-mocking safe to use?
Our automatic check found patterns worth a look (see “Check”). That is not proof of anything bad – read the SKILL.md and scripts before installing.
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