12,529 tagged Backend and APIs, measured the same way as everything else here.
Browse within: agents 160skills 141LLM 111agent 90azure 80agentic-ai 77api 71claude-code-plugin 61ai-coding-agent 58antigravity 54sdk 51nextjs 50claude-code-skills 49cli 48
Skill Claude CodeCodex
Best practices for building Harper applications, covering schema definition, automatic APIs, authentication, custom resources, and data handling. Triggers on tasks involving Harper database design, API implementation, and deployment.
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.
Skill Claude Code
Project technology stack patterns for FastAPI + PostgreSQL + SQLAlchemy + Alembic + PyTorch + pandas.
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.
desilokesh1/antigravity-fullstack-hq
Skill Claude CodeCodex
Next.js App Router best practices, Server Components, Server Actions, routing patterns, and data fetching strategies. Use when building Next.js applications with the App Router.
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…
gsmlg-app/flutter-app-template
Skill Claude CodeCodex
Guide for creating API client packages from OpenAPI specs using the apiclient brick in appapi (project).
Skill Claude CodeCodex
Publish a stoop site over HTTP with an API key, from a server-side app, agent, or CI job that has no folder and no terminal. Use when code you are writing needs to publish or revise a web page at runtime — a bot posting a report, a job publishing a dashboard. If you have the files on disk and a terminal, use stoop…
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"…
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…
Skill Claude Code
The distributed-correctness lens: design or audit anything that spans machines. Use when the user designs or reviews RPC, queues, replication, consensus, sharding, fault tolerance, or distributed transactions — or asks whether a design is correct. Triggers on "is this retry safe / exactly-once / idempotency"…
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.'.
Skill Claude CodeCodex
Spotify API integration — playback control, playlists, search, recommendations.
helleOPP/anycross-skill-creator
Skill Claude CodeCodex
Build, validate, and package AnyCross workflow files (the Lark/Feishu automation platform) — produces an importable .zip via a Python generator script. Covers the real flow.json schema (structure/steps, operation objects, the four spel types), connector/operation IDs harvested from verified exports, LarkBase field…
Skill Claude CodeCodex
Reference for the Ada Diamonds public REST API (https://www.adadiamonds.com/api/v1) covering every endpoint, self-serve API keys and OAuth 2.1 scopes, the public sandbox key, rate limits, error shapes, versioning, and working curl examples. Use when integrating with Ada Diamonds over HTTP, generating client code…
Skill Claude CodeCodex
Scalable architecture skill based on the System Design Primer. Before designing any backend, reason about load balancers, caching, DB partitioning, CAP theorem, and microservices trade-offs. Adapted for Serverless/Edge, Next.js App Router, BFF, and DDD patterns.
Skill Codex
Use when the task involves general NextPay Partners API v2 integration work, especially setting up Basic Auth, choosing between merchant, account, funding-method, payment-intent, payout, webhook, or sandbox simulation endpoints, generating request or response examples, or explaining integration behavior from the…
Skill Codex
Provides the official Protobuf specifications and gRPC/REST service definitions for the Gemini API (Google Generative Language API v1beta). Use this skill when you need precise schema definitions for requests/responses (e.g., GenerateContent, Tools, FunctionCalling), multimodal content structures (Content, Part)…
Skill Claude CodeCodex
Control and monitor a libp2p node (peer discovery, messaging, file sharing, network monitoring, and DeFi coordination) via Claude Desktop.
ilia-inovaflow/s4hana-create-record-skills
Skill Claude CodeCodex
Create business partners (BPs) in SAP S/4HANA Cloud Public or on-prem private edition via OData V2 ABusinessPartner deep-insert at APIBUSINESSPARTNER. Supports suppliers (vendors with FLVN00/FLVN01 roles), customers (FLCU00/FLCU01 roles), AND combined customer+supplier BPs (sells AND buys) in a single POST. Use…
Ratnam-Mishra/canvas-apps-plugin-codex
Skill Claude Code
Guide the user to add a data source, connection, or API connector to a Canvas App via Power Apps Studio, then verify and continue. USE WHEN the user asks to add a data source, add a connection, add an API, add a connector, connect to SharePoint / Dataverse / SQL / Excel / OneDrive / Teams / Office 365, or any similar…
Skill Claude CodeCodex
Draft or repair a disabled Synapsor Safe Action when a developer asks to make one application data change safe for an AI agent.
Skill Claude Code
Stripe checkout sessions, webhook cryptographic signature verification, idempotency, and refund flows.
Skill Claude CodeCodex
CLI for the Make.com automation platform. Manage organizations, teams, folders, scenarios, webhooks, connections, data stores, functions, and sync entire orgs to local disk for analysis. Also covers Make.com MCP server setup, zone configuration, blueprint analysis, and searching for properties across synced scenario…
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: