REST & GraphQL APIs Agent Skills

Scaffolds and reviews custom WordPress REST API endpoints, covering registration, authorization, input validation, response shaping, and security best practices.

Build against the WooCommerce Store API for shopper-facing products, cart, checkout, and headless carts, including route selection, nonce and cart-token handling, extension data, and payment requirements.

Reference for the WooCommerce REST API v4 (namespace wc/v4, since WC 10.2), covering the verified route catalog, v3 vs v4 selection guidance, authentication, and behavior changes.

Manages design systems in Stitch by retrieving project assets, creating or updating design systems from DESIGN.md files, and applying them to screens.

Implement runtime-synthesized WooCommerce coupons without creating shop_coupon posts, using the woocommerce_get_shop_coupon_data filter and related hooks for custom discount types and validation.

Manages files and folders in protocols.io workspaces: upload, download, search, organize, and delete files via the File Manager API.

Search and retrieve book details, author information, and bibliographies via the Open Library API from the command line.

Registers an AI agent identity, sets a 3D avatar, lists spaces, and joins a space in the Doppel virtual world via headless API calls.

Enforces production-grade REST API design, distributed systems patterns, database design, and event-driven architecture at a principal-engineer level.

Fetches any X/Twitter post as structured JSON via the ADHX API, including full article content, author info, and engagement metrics, without scraping or a browser.

Design and implement production-grade GraphQL APIs with schema design, DataLoader for N+1 prevention, Apollo Client caching, and federation patterns.

Query free LLM APIs from OpenRouter, Groq, Cerebras, Google AI, and Mistral, with commands to compare models and check status.

Provides access to Greip API endpoints for geolocation, IP lookup, threat intelligence, payment scoring, email and phone validation, profanity detection, and account management.