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AI EngineeringTypeScript

API Authentication

by secondsky

API Authentication is an AI Engineering skill for Claude Code, published by secondsky in claude-skills.

214 stars31 forkson secondsky/claude-skillsAdded 2026/09/04+1% in starsRepository updated 2026/09/03
claude-codeclaude-code-commandsclaude-code-hooksclaude-code-pluginclaude-code-pluginsclaude-code-skillclaude-code-skills
Install in seconds
Install API Authentication
Copy API Authentication into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.
terminal
npx degit https://github.com/secondsky/claude-skills/tree/main/plugins/api-authentication/skills/api-authentication ~/.claude/skills/api-authentication

Requires Node.js. Downloads this skill only โ€” not the rest of the repository โ€” into your Claude Code skills folder.

Without Node.js

git clone https://github.com/secondsky/claude-skills.git

Clones the whole repository, then copy the skillโ€™s own directory into your skills folder yourself.

In this catalog

Source file
plugins/api-authentication/skills/api-authentication/SKILL.md in secondsky/claude-skills
Installs to
~/.claude/skills/api-authentication
Collection
One of 24 skills cataloged from this repository
Category
AI Engineering โ€” 2970 skills

What API Authentication does

API Authentication implements secure API auth with JWT, OAuth 2.0, API keys, and sessions. Use it for login flows, third-party integrations, service-to-service access, and token handling.

API Authentication is cataloged under AI Engineering on DirSkills. API Authentication comes from a repository tagged claude-code, claude-code-commands, claude-code-hooks, claude-code-plugin and claude-code-plugins.

Frequently asked about API Authentication

  • What else does secondsky publish alongside API Authentication?

    API Authentication is one of 24 skills that DirSkills catalogs from secondsky/claude-skills, the repository it ships in. Its siblings there include API Changelog & Versioning, API Contract Testing and API Design Principles. Each one is a separate skill with its own page in this directory, installs the same way API Authentication does, and is maintained by secondsky in that same repository. The rest of the collection is listed on the secondsky/claude-skills page.

  • How does API Authentication compare to other AI Engineering skills?

    API Authentication ranks #2651 by stars among the 2970 AI Engineering skills in this catalog. The most-starred ones next to it are Architecture Decision Records, AI-First Engineering and Agentic OS. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of API Authentication against them. Open each page to compare what they document and how they install.

More from secondsky/claude-skills

API Authentication is one of 24 skills cataloged on DirSkills from secondsky/claude-skills.

See all 24 skills โ†’
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API Changelog & Versioning

API Changelog & Versioning creates changelogs that document breaking changes, deprecations, and migration steps for API consumers. Use it when releasing new API versions or planning upgrades.
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API Contract Testing

API Contract Testing verifies that services honor request and response contracts with consumer-driven tests, schema validation, and tools like Pact. Use it to test microservice communication, catch breaking changes, or validate OpenAPI specs.
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2h ago

API Design Principles

API Design Principles helps you design REST and GraphQL APIs with clear resource models, versioning, pagination, and error handling. Use it when creating APIs, reviewing specifications, or setting API standards.
AI Engineering
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๐Ÿšจ
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API Error Handling

API Error Handling implements standardized API error responses with proper status codes, logging, and user-friendly messages. Use it when building production APIs or adding error recovery and monitoring patterns.
DevOps
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API Filtering And Sorting

API Filtering And Sorting builds flexible query parsing for filters and sort parameters in search endpoints and data APIs. Use it to validate allowed fields, map operators, and reduce injection risk.
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API Gateway Configuration

API Gateway Configuration designs and configures gateways for routing, authentication, rate limiting, and request transformation in microservice systems. Use it when setting up Kong, Nginx, AWS API Gateway, or Traefik for centralized API management.
DevOps
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