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Generate an OpenAPI spec from routes v1.0.0

Use this resource to generate an OpenAPI specification from an API's routes

New

  • 339 downloads
  • 181 likes
  • 164 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install openapi-spec-generator

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent generates an OpenAPI 3.0 or 3.1 specification from Express, Next.js, Fastify, Hono or NestJS routes, with schemas, examples and documentation. The file imports into Postman, Insomnia or Swagger UI. You get a complete spec and a validation script.

Mostly picked by

Updated November 2, 2026

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Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: OpenAPI 3.1 template and a type-to-schema converter
  • SKILL.md: route scanner, Fastify and NestJS integrations and a validation script

Good fit for

  • Your API has no spec and you want to document it from the code
  • A partner asks for a spec they can import into Postman

Not for

    Tags

    • openapi
    • swagger
    • api
    • specification

    About

    You say

    “Generate the OpenAPI spec of our Fastify API from its routes and validate it.”

    Card for the “Generate an OpenAPI spec from routes” skill

    Skill published by patricio0312rev under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to generate an OpenAPI specification from an API's routes
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • SKILL.md15 KB

    Origin and licence

    Listed unmodified

    Author
    patricio0312rev
    Source
    github.com/patricio0312rev/skills/tree/79ea6af485698b31060b63f0066f712560757b29/testing/openapi-generator
    Licence
    MIT

    Notice

    « openapi-generator » (patricio0312rev, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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