Agent skill
api-reference-documentation
Creates professional API documentation using OpenAPI specifications with endpoints, authentication, and interactive examples. Use when documenting REST APIs, creating SDK references, or building developer portals.
Install this agent skill to your Project
npx add-skill https://github.com/secondsky/claude-skills/tree/main/plugins/api-reference-documentation/skills/api-reference-documentation
SKILL.md
API Reference Documentation
Create comprehensive API documentation for developer integration.
OpenAPI 3.0 Specification
openapi: 3.0.3
info:
title: E-Commerce API
version: 1.0.0
description: API for managing products and orders
contact:
email: api@example.com
servers:
- url: https://api.example.com/v1
description: Production
- url: https://staging-api.example.com/v1
description: Staging
security:
- bearerAuth: []
paths:
/products:
get:
summary: List products
tags: [Products]
parameters:
- name: limit
in: query
schema: { type: integer, default: 20 }
- name: category
in: query
schema: { type: string }
responses:
'200':
description: Product list
content:
application/json:
schema:
$ref: '#/components/schemas/ProductList'
components:
securitySchemes:
bearerAuth:
type: http
scheme: bearer
bearerFormat: JWT
schemas:
Product:
type: object
required: [id, name, price]
properties:
id: { type: string, format: uuid }
name: { type: string, maxLength: 200 }
price: { type: number, minimum: 0 }
description: { type: string }
Documentation Checklist
- All endpoints documented with examples
- Authentication methods explained
- Error responses specified
- Rate limits documented
- Pagination explained
- Webhooks documented (if applicable)
- SDK examples in multiple languages
Best Practices
- Use OpenAPI 3.0+ specification
- Include request/response examples
- Document all parameters and headers
- Provide authentication examples
- Enable interactive API exploration
- Maintain version documentation
- Include migration guides for breaking changes
Tools
- Swagger Editor / Swagger UI
- Redoc
- Postman Documentation
- Stoplight
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