Best API Development Skills for Claude Code

Query Web3 and on-chain GraphQL endpoints using natural language via the Model Context Protocol.

A prioritized Gmail digest that filters out promotions and noise to surface urgent and personal emails.

High-performance browser-based text layout and measurement for virtualization, canvas, and layout-heavy applications.

Prevent vulnerabilities before they happen by forcing early security framing and secure-by-default design patterns.

Search, buy, and sell secondhand books on Estonia's largest marketplace with DPD delivery and AI price suggestions.

Autonomous research and task loop that builds on previous findings to solve complex objectives while you sleep.

Python CLI and reusable client for one-shot chat and SSE streaming via the Felo Open Platform.

Automated local SEO auditing and keyword generation for agencies and small businesses.

Bypass OS-native file upload dialogs in browser automation using JavaScript interception and DataTransfer injection.

Architect, build, and review production-grade Discord bots with structured guidance on commands, security, and scaling.

Generate production-ready, commented Nginx configurations from plain English descriptions.

Fully automated playlist migration between Spotify, Apple Music, Tidal, and YouTube Music.

Instantly generate a runnable Express or Flask mock API server from a description or OpenAPI spec.

Turn OpenAPI specs into exhaustive, framework-ready test suites covering happy paths, edge cases, and security gaps.

Ethical, structured web crawling and data extraction planning with built-in pagination and deduplication logic.

Evaluates AI coding agent platforms across five structural dimensions that determine real-world performance independently of model quality, so teams select on architectural fit rather than benchmark scores.

Automated, API-driven playlist migration from Spotify, Tidal, and YouTube Music to Apple Music with artist validation.

Free, direct translation across 100+ languages using Meta M2M-100 on Cloudflare Workers AI.

Generate professional-grade 48kHz music clips and full songs for free using Google's Lyria 3 models.

Convert source code into OpenAPI 3.0 specs or Markdown docs via static analysis of Express, FastAPI, and more.

Turn plain English app descriptions into fully normalized SQL schemas and entity relationship documentation.

Professional API design and review skill for REST, GraphQL, and event-driven architectures.

Professional security audit skill for web apps and APIs with structured severity-based findings and remediation plans.

A structured framework for planning, reviewing, and evolving complex software systems with explicit trade-offs.

Generate realistic JSON or CSV test data from plain-English schema descriptions with up to 1,000 rows.