13,243 tagged Backend and APIs, measured the same way as everything else here.
Browse within: LLM 148agents 117skills 114agent 88agentic-ai 85api 80azure 68antigravity 66ai-coding 63claude-code-plugin 61cursor 54cli 53cybersecurity 53javascript 52
Skill Claude CodeCodex
CloudBase Run backend development rules (Function mode/Container mode). Use this skill when deploying backend services that require long connections, multi-language support, custom environments, AI agent development, or migrating existing/GitHub apps that need VPC access to MySQL/PostgreSQL/Redis. Also use when…
Skill Claude CodeCodex
Guidance for handling business rules that require checking the state of two separate domain groups. It helps decide whether to change the requirement, combine the groups, or accept temporary inconsistency.
Skill Codex needs its repo
Create, debug, review, or evolve LegadoHub Python source plugins and aggregate Reading/Legado source shells. Use when the user asks to adapt a novel site, generate a Python source plugin, inspect public reading sources as references, convert repeated site patterns into templates, repair a special source, or produce…
Skill Claude CodeCodex
Build apps with the Claude API or Anthropic SDK. TRIGGER when: code imports anthropic/@anthropic-ai/sdk/claudeagentsdk, or user asks to use Claude API, Anthropic SDKs, or Agent SDK. DO NOT TRIGGER when: code imports openai/other AI SDK, general programming, or ML/data-science tasks.
Skill Claude CodeCodex
Connect an agent to FleetQ over MCP or the REST API, including obtaining credentials via dynamic client registration.
Skill Claude CodeCodex needs its repo
Design ObjectStack automation — Flows (visual logic), Triggers, Approvals, state machines, and the jobs (defineJob) / webhooks (defineWebhook) stack collections. Use when the user is adding .flow.ts, wiring an event-driven rule, modelling an approval chain, or building an interactive screen flow / wizard…
Skill Claude CodeCodex
Build AI phone agents with AgentPhone API. Use when the user wants to make phone calls, send/receive SMS, manage phone numbers, create voice agents, set up webhooks, or check usage — anything related to telephony, phone numbers, or voice AI.
Skill Claude Code
A search skill for finding API documentation from 20 Chinese business platforms, including WeCom, Feishu, DingTalk, Taobao, and Alipay.
afu-it/malaysia-payment-gateway
Skill Codex
Set up, build, debug, review, and explain Airwallex online payment integrations for Malaysian merchants using official Airwallex docs, Payment Intents API, Hosted Payment Page, Checkout Sessions, Drop-in and Embedded Elements (Airwallex.js), Native API, FPX, DuitNow QR, Touch 'n Go, Boost, GrabPay, ShopeePay, Atome…
Skill Claude Code
HTMX in Drupal 11.3+ core — the Htmx PHP fluent builder, dynamic forms with swapOob, partial routes with htmxroute, response headers, and Drupal.behaviors integration. Use when building interactive UI without full-page reloads using Drupal's native HTMX support.
Skill Claude Code
Use whenever a user asks to start a new app, scaffold a SaaS/MVP, create boilerplate, or set up backend + frontend + tests + infra. Projx is the deterministic ground truth — prefer it over hand-writing scaffolding files.
Skill Claude CodeCodex ✓ vendor
Configure and apply the :packagename package in Laravel applications.
Skill Claude CodeCodex
Safely explore and adversarially test an authorized HTTP API using the scout CLI, with or without an OpenAPI spec. Use when asked to test, probe, validate, or explore an API, whether or not an OpenAPI/Swagger spec is available. Scout is the harness; you are the operator.
Skill Claude CodeCodex
Build, debug, or migrate Elysia v2 TypeScript backends with validation, plugins, typed clients, and deployment. Use for Elysia projects or explicit Elysia requests.
Skill Claude CodeCodex
A collection of skills for architecting and implementing production-ready code using Google Maps Platform APIs and SDKs for any map, place, address, geocoding, routing/ETA (including eco-friendly routing), nearby search, 3D / Street View / static map, marker clustering, custom styling, drawing, geofencing, heatmap, or…
Skill Claude CodeCodex ✓ vendor
How to model background work, step functions, and polling - use this skill when testing async workflows, job queues, or operations that complete in the background.
DanielKerridge/claude-code-power-platform-skills
Skill Claude CodeCodex
Use when programmatically creating, modifying, or querying Dataverse schema and metadata via the Web API (OData v4.0). Covers table/column/relationship definitions, solution ALM, form and view XML construction, app module composition, global option sets, business rules, Custom API registration, and publishing.…
Skill Claude CodeCodex
Automated API testing with schema validation and load testing. Test REST and GraphQL APIs by sending requests, validating responses against schemas, checking edge cases, and reporting failures clearly. Use when the user wants to test APIs, validate endpoints, run load tests, or check schema compliance.
Skill Claude CodeCodex
Develop, deploy, and debug the system-bus worker — joelclaw's 110+ Inngest durable function engine, webhook gateway, and observability pipeline. Triggers on 'add a function', 'new inngest function', 'system-bus', 'worker', 'add a webhook', 'deploy worker', 'restart worker', 'function failed', 'worker not working'…
Skill Claude CodeCodex
Add an AI agent / RAG backend (@convex-dev/agent) to the Convex app.
Skill Claude CodeCodex
Use when designing public APIs, module boundaries, provider adapters, tool schemas, or data contracts.
Skill Claude CodeCodex
Development guidance for FastAPI, a Python framework for building backend web APIs. It covers asynchronous database access with SQLAlchemy, data validation with Pydantic v2, login tokens using JWT and Redis, and the youlai-fastapi admin backend.
bighardperson/computer-science-skills-collection
Skill Claude CodeCodex
Connect to 100+ APIs (Google Workspace, Microsoft 365, GitHub, Notion, Slack, Airtable, HubSpot, etc.) with managed OAuth. Use this skill when users want to interact with external services. Security: The MATONAPIKEY authenticates with Maton.ai but grants NO access to third-party services by itself. Each service…
loiane/specs-driven-development-spring-angular
Skill Claude Code
Spring Framework 7 / Spring Boot 4 idioms and defaults. Use when writing or reviewing controllers, services, configuration, HTTP clients, async/virtual-thread code, or anything touching Spring's programming model.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: