Backend API Master

Backend, APIs & data — Master Hub

Use for backend, REST/GraphQL APIs, auth, databases, payments, and integrations.

How to use this hub

This single skill bundles all 19 backend api skills. Each bundled skill's full instructions live in skills/<name>/GUIDE.md (plus any scripts/, data/, references/ next to it).

Workflow:

1. Match the user's request to one or more skills in the list below.
2. Read that skill's skills/<name>/GUIDE.md for full instructions before acting.
3. Combine multiple bundled skills when a task spans several areas.

Bundled skills

• adding-api-docs — Generate OpenAPI/Swagger documentation for an API, including endpoint schemas, request/response types, and interactive docs UI.
  → skills/adding-api-docs/GUIDE.md
• adding-auth — Add authentication to a web application using NextAuth.js (Auth.js), including OAuth providers, session management, and protected routes.
  → skills/adding-auth/GUIDE.md
• adding-stripe — Integrate Stripe payments into a web application, including checkout sessions, webhooks, and customer portal.
  → skills/adding-stripe/GUIDE.md
• cursor-skills-api — API development rules for Cursor — REST, GraphQL, gRPC, authentication, versioning, and API design. Use when building or documenting APIs.
  → skills/cursor-skills-api/GUIDE.md
• cursor-skills-integrations — Integration development rules for Cursor — webhooks, message queues, databases, microservices, and service mesh patterns.
  → skills/cursor-skills-integrations/GUIDE.md
• cursor-skills-node — Node.js development rules for Cursor — Express, NestJS, Next.js, npm, TypeScript, and async patterns. Use for Node.js or JavaScript backend work.
  → skills/cursor-skills-node/GUIDE.md
• cursor-skills-php — PHP development rules for Cursor — Laravel, Symfony, WordPress, Composer, and PHP project structure. Use when working with PHP, Laravel, Symfony, or WordPress.
  → skills/cursor-skills-php/GUIDE.md
• cursor-skills-python — Python development rules for Cursor — Django, Flask, FastAPI, data science, virtual environments, and testing. Use when working with Python projects.
  → skills/cursor-skills-python/GUIDE.md
• database-design — Design database schemas — tables, relationships, indexes, constraints, and ORM setup. Covers relational design, normalization, and common patterns.
  → skills/database-design/GUIDE.md
  (Full admin UI / Database Studio product → systems-platforms-master → database-studio-complete)
• stripe-stripe-best-practices — >-
  → skills/stripe-stripe-best-practices/GUIDE.md
• stripe-stripe-projects — >-
  → skills/stripe-stripe-projects/GUIDE.md
• stripe-upgrade-stripe — Guide for upgrading Stripe API versions and SDKs
  → skills/stripe-upgrade-stripe/GUIDE.md
• integrations-pro — Core integration patterns (webhooks, OAuth, sync). Platform playbooks: integrations-master (GitHub, Slack, CRM, cloud, index).
  → skills/integrations-pro/GUIDE.md
• qr-code-generation — Generate/decode QR codes: URL/vCard/Wi-Fi/payment payloads, error-correction levels, SVG for print, branded QR with logos, and dynamic trackable redirects.
  → skills/qr-code-generation/GUIDE.md
• gs1-barcodes — GS1 & retail barcodes: GTIN/EAN-13/UPC-A, SSCC/GLN, check digits, symbology choice (GS1-128 / DataMatrix), Application Identifiers, and GS1 Digital Link.
  → skills/gs1-barcodes/GUIDE.md
• google-sign-in — "Sign in with Google" via Google Identity Services: GIS button, server-side ID-token verification (aud/iss/exp), OAuth code flow + PKCE, and refresh-token handling.
  → skills/google-sign-in/GUIDE.md
• mfa-authenticator-security — Multi-factor auth & authenticator security: TOTP (Google Authenticator/Authy) with QR enrollment & replay/rate-limit protection, WebAuthn/passkeys, SMS/email OTP, push approval, backup/recovery codes, and step-up/adaptive auth.
  → skills/mfa-authenticator-security/GUIDE.md
• gps-integration — Advanced GPS/geolocation: browser & mobile capture, PostGIS storage/queries, geofencing (enter/exit), routing/ETA, real-time tracking pipelines, and battery/privacy best practices.
  → skills/gps-integration/GUIDE.md
• gis-maps — GIS & interactive maps: MapLibre/Mapbox/Leaflet/deck.gl, GeoJSON & vector tiles, clustering/heatmaps/choropleths, PostGIS spatial queries, geocoding/routing, and performance.
  → skills/gis-maps/GUIDE.md

Pairs well with

integrations-master — GitHub, GitLab, CI/CD, AWS/GCP/Azure, Google/Microsoft, Slack, Jira, Salesforce, Shopify, Zapier/n8n, 80+ platform index.

Note

These bundled skills are intentionally not registered as separate Cursor skills (their files are GUIDE.md, not SKILL.md) so only this master appears in the skills list. Read the relevant GUIDE.md on demand.