Backend and APIs skills

13,257 tagged Backend and APIs, measured the same way as everything else here.

Browse within: LLM 148agents 116skills 116agent 88agentic-ai 85api 80azure 68antigravity 65claude-code-plugin 61ai-coding 57cursor 54cli 53cybersecurity 53javascript 52

rage-framework

721

rage-rb/skills

Skill Claude CodeCodex

Develop and maintain Rage apps (Gemfile includes gem "rage-rb") - controllers, routing, server-sent events, deferred jobs, events, websockets, OpenAPI, logging/telemetry, sessions/cookies, and RSpec.

not rated 3 changed 7d ago A 54 tokens original MIT

asyncapi-spec

722

CrazyElephantX/OpenCode

Skill Claude CodeCodex

A guide for creating an AsyncAPI requirements specification for a Kafka message broker. Kafka is a system that lets applications exchange messages through shared streams.

not rated 3 1mo ago A 18 tokens

ampeco-public-api

723

ampeco/claude-code-ampeco-public-api-skill

Skill Claude Code

Explore AMPECO Public API endpoints, schemas, and develop integrations with the EV charging platform. Use for API exploration, building integrations, or understanding available endpoints. Trigger keywords: "ampeco api", "public api", "ev charging api", "ampeco integration".

not rated 3 changed 1mo ago A 65 tokens original MIT

bbc-skill-tool

725

leifermendez/bbc-skill-mcp

Skill Claude CodeCodex

Builds, manages, and troubleshoots WhatsApp bots using the BuilderBot Cloud (BBC) MCP Tool v2.4. Covers bot creation for businesses needing appointment booking, citas, escalation, and conversational AI. Enforces verification after every mutation, destructive action gates, error recovery, and pre-deploy validation. USE…

not rated 3 changed 5d ago A 217 tokens

agentbox

726

RABNEER/AgentBox

Skill Claude CodeCodex

Master autonomous email engine for AI agents: create disposable/persistent inboxes, capture OTPs and verification links in 2ms, send outbound emails, wait for incoming triggers, and automate 2FA signups.

not rated 3 2mo ago B 46 tokens original MIT

webex-api-assistant

727

santime27/mcp-server-webex-docs

Skill Claude CodeCodex

Senior Webex Developer Companion skill that guides AI assistants to discover Webex REST API endpoints via MCP search, inspect complete OpenAPI schemas, and conduct interactive live API explorations using safe Python scripts in a sandbox environment without hardcoding tokens.

not rated 3 +1 2mo ago A 53 tokens original MIT

harper-best-practices

728

HarperFast/skills

Skill Claude CodeCodex

How to implement a specific Harper feature correctly, with one rule per feature (tables and schemas, relationships, automatic REST and WebSocket APIs, extending tables, custom resources, caching, real-time, auth, blobs, vector indexes, static and Vite web serving, logging, env loading, and deploying to Harper Fabric).…

not rated 3 changed 2d ago A Socket: passSnyk: pass 96 tokens original Apache-2.0

laravel-specialist

729

Pixel-Process-UG/superkit-agents

Skill Claude CodeCodex

Use when building or maintaining Laravel applications — Eloquent ORM, Blade, Livewire, queues, Pest testing, middleware, service providers, migrations. Trigger conditions: Laravel project setup, Eloquent model design, Blade or Livewire component creation, queue/job implementation, Pest test writing, middleware…

not rated 3 7mo ago A 88 tokens original MIT

chumbo

730

elsheppo/chumbo

Skill Claude CodeCodex

Turn existing Supabase applications into end-user-facing Streamable HTTP MCP servers. Use for installing, configuring, developing, debugging, testing, deploying, or upgrading the chumbo package, including when a user asks generically to add MCP capabilities to a Supabase app, a Next.js application, or a Node service…

not rated 3 changed 1mo ago A 94 tokens original MIT

mcp-ecc

731

karljsamuel/mcp-ecc

Skill Claude CodeCodex

Runbook for driving the mcp-ecc MCP server — install/run (CLI stdio or single-container Docker), add a provider account, register per-user OAuth clients, and authenticate the /mcp endpoint with a user's per-user MCP API key. Use when setting up, configuring, or connecting a client to mcp-ecc (email/calendar/contacts…

not rated 3 11d ago A 101 tokens original MIT

wick-plugin-service

732

yogasw/wick

Skill Claude CodeCodex

Use when building, changing, testing or debugging a wick SERVICE plugin — the always-on plugin wick supervises and serves at /x/{key}/ (webhook receivers, public or token APIs, pages for signed-in users, A2A / Team remote agents). Covers the pkg/service Module (Meta, Routes, Configs, CallbackScopes, Register…

not rated 3 changed 14d ago A 199 tokens original MIT

Knuckles-Team/jellyfin-mcp

Skill Claude CodeCodex

Develop and validate the jellyfin-mcp connector using its actual scion-sdk entrypoint, Jellyfin API clients, ontology assets, packaged skills, and focused tests. Use this skill for source changes and delivery gates; use the provider skills for live Jellyfin operations.

not rated 3 changed today A 60 tokens original MIT

file-storage

734

tigrisdata/skills

Skill Claude CodeCodex

Use when working with Tigris file storage - uploading, downloading, deleting, listing files, presigned URLs, client uploads, or setting up Tigris CLI and SDK. Covers Next.js, Remix, Express, Rails, and Laravel. For Python/Django, see the tigris-python-sdk skill.

not rated 2 3mo ago A Socket: warnSnyk: pass 66 tokens original MIT

claude-api

735

lk19940215/claude-coder

Skill Claude CodeCodex

Use this skill when the user is building against Anthropic APIs or SDKs, including @anthropic-ai/sdk, anthropic, or Agent SDK integrations.

not rated 2 6mo ago A 0 tokens

stack-knowledge

736

zachjxyz/jvn

Skill Claude Code

Project technology stack patterns for FastAPI + PostgreSQL + SQLAlchemy + Alembic + PyTorch + pandas.

not rated 2 7mo ago A 26 tokens original MIT

securing-code

737

codeverbojan/claude-code-kickstart

Skill Claude Code

Enforces secure coding patterns for API routes, auth, input handling, and database queries. Triggered when writing server-side code, handling user input, or adding dependencies.

not rated 2 6mo ago A 39 tokens original MIT

nestjs-patterns

738

desilokesh1/antigravity-fullstack-hq

Skill Claude CodeCodex

NestJS best practices, module architecture, DTOs, Guards, Interceptors, and common patterns. Use when building or reviewing NestJS backend services.

not rated 2 19d ago A 34 tokens original MIT

digital-samba

739

digitalsamba/digital-samba-skill

Skill Claude CodeCodex

Build video conferencing integrations using Digital Samba's API and SDK. Use when creating meeting rooms, embedding video calls, generating participant tokens, managing recordings, or integrating real-time collaboration features. Triggers include "Digital Samba", "video conferencing API", "embed video calls", "meeting…

not rated 2 3d ago C 71 tokens original MIT

project-api

740

gsmlg-app/flutter-app-template

Skill Claude CodeCodex

Guide for creating API client packages from OpenAPI specs using the apiclient brick in appapi (project).

not rated 2 yesterday A 24 tokens

scale-to-millions

741

Rudra-narayan-muduli-001/Scale-to-Millions

Skill Claude CodeCodex

Use this skill whenever the user is designing, reviewing, debugging, or answering interview questions about system/software architecture and scalability — e.g. "scale my app", "how do I handle more traffic", "design a URL shortener / news feed / chat system", "my API is slow under load", "should I shard my database"…

not rated 2 2mo ago A 130 tokens original MIT

laravel-13-expert

742

Deixtra-Private-Limited/claude-laravel-13-skill

Skill Claude CodeCodex

Comprehensive Laravel 13.x expert skill covering the entire framework — installation, configuration, routing, controllers, middleware, Blade views, Eloquent ORM, migrations, queues, jobs, events, mail, notifications, caching, Redis, scheduling, service container, service providers, authentication, authorization, AI…

not rated 2 6mo ago A 105 tokens original MIT

holdfast

743

IamK77/Skill

Skill Claude Code

Warm, playful exploration of shared worlds, distributed systems, and questions that want a stranger frame. Follow an intriguing association beyond the usual protocol menu; make room for unfinished ideas without rushing to appraisal or an implementation plan. Not a distributed-correctness audit.

not rated 2 changed 18d ago A 54 tokens original Apache-2.0

scaffold

744

Benja-Pauls/SerpentStack

Skill Claude CodeCodex needs its repo

Generate boilerplate for new API endpoints and frontend pages following this project's conventions (flush/commit transaction pattern, ownership enforcement, domain returns). Use when: adding a new resource, creating CRUD endpoints, wiring up a new frontend page, or asking 'how do I add a new feature end-to-end.'.

not rated 2 7mo ago A 63 tokens original MIT

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: