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

rules-quarkus

697

kinhluan/rules-quarkus-skills

Skill Claude CodeCodex needs its repo

Expert knowledge for building Quarkus applications with Bazel using the rulesquarkus build system. Use when user asks about Quarkus+Bazel builds, augmentation, or troubleshooting.

not rated 3 4mo ago A 42 tokens original MIT

qapla-api

698

Qapla/qapla-api-skill

Skill Claude CodeCodex

Integrate with or answer questions about the Qapla' shipping & tracking REST API (public v1.3). Use this when working with Qapla' to push shipments or raw orders, generate and confirm carrier labels, track parcels, get real-time multi-carrier quotes, look up pickup points (PUDO), verify addresses, list couriers and…

not rated 3 changed 8d ago A 152 tokens original MIT

fellyph/ai-instructions

Skill Claude CodeCodex

Guide for creating WordPress Playground Blueprint JSON files and executing WP-CLI commands. Use when building Blueprint files, automating WordPress/WooCommerce management via CLI, configuring WordPress Playground environments, or troubleshooting. Covers blueprint creation, WP-CLI commands, and WooCommerce CLI…

not rated 3 9mo ago A 80 tokens

go-gin-generator

700

kuku0922/awesome-ai-coding-enhance

Skill Claude CodeCodex

Generate production-ready Go projects using the Gin framework with modern best practices, multiple templates, database integration, authentication, and comprehensive features for building scalable web applications and microservices.

not rated 3 11mo ago A 39 tokens original MIT

wingify-fe-mcp

701

wingify/wingify-fme-mcp

Skill Claude CodeCodex

Develop, extend, and operate the Wingify Feature Experimentation (FE) MCP server (wingify-fme-mcp): feature flags, rules, Statsig migration tools, SDK integration, and IDE rules. Use when working in this repo, Wingify FE MCP tools, Statsig-to-Wingify migration, feature flag APIs, or MCP server changes.

not rated 3 2mo ago A 78 tokens original Apache-2.0

saperly

703

Saperly/saperly-mcp

Skill Claude CodeCodex

give your ai agent a phone number. provision lines, make calls, check compliance, all from claude code. saperly is the phone carrier for ai agents.

not rated 3 4mo ago A 38 tokens original MIT

tracepulse

704

sourjya/tracepulse

Skill Claude CodeCodex

Uses TracePulse MCP server for backend runtime error monitoring. Use after ANY backend code change to check for errors, verify fixes, and triage crashes. TracePulse watches dev server logs (stdout/stderr or log files) and exposes parsed, scored errors as MCP tools. Works with any language - Node.js, Python, Go, Java…

not rated 3 3mo ago A 76 tokens

yashprogrammer/mcp-apps

Skill Codex

Integrate an interactive MCP App into an existing FastAPI application without replacing its API, database, authentication, or frontend. Use when a learner wants Claude Desktop or another MCP host to discover existing FastAPI capabilities, render a ui:// widget, perform tool-driven actions, and verify that real backend…

not rated 3 2mo ago A 71 tokens

ai-native-cli

706

ChaosRealmsAI/agent-cli-spec

Skill Claude CodeCodex

AI-Native CLI design spec. Use when building CLI tools, designing command-line interfaces, or scaffolding new CLI projects. Covers structured JSON output, error handling, input contracts, safety guardrails, exit codes, and agent self-description. Includes an audit protocol for verifying CLI compliance.

not rated 3 7mo ago A 61 tokens original MIT

nextapi

707

nextpay-ai/skills

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…

not rated 3 6mo ago A 62 tokens

alexei-led/architect

Skill Claude CodeCodex

Assess coupling with the Balanced Coupling model (integration strength, distance, volatility). Use when judging whether coupling is balanced or risky, scoring the couplingbalance dimension, or deciding what to flag as structural risk. Highest risk is high strength + high distance + high volatility together. NOT…

not rated 3 3mo ago A 94 tokens original MIT

clarify-api

709

clarifyhq/skills

Skill Claude CodeCodex

Guidelines for working with the Clarify CRM API - includes authentication, endpoints, pagination, filtering, and CRUD operations for records.

not rated 3 7mo ago A 29 tokens

zernio-dev/social-media-api-best-practices

Skill Claude CodeCodex

Best practices for integrating social media APIs (Instagram, TikTok, YouTube, Twitter/X, LinkedIn, Facebook, Threads, Pinterest, Bluesky, Snapchat, Google Business, Reddit, Telegram). Covers OAuth, AT Protocol, rate limiting, media uploads, encryption, and error handling. Use when building social media integrations…

not rated 3 3mo ago A 82 tokens

auth-implementation

711

sattva2020/skills

Skill Claude Code

Implement authentication and authorization in web applications. Use when adding login, signup, sessions, JWT tokens, OAuth, SSO, API key auth, role-based access control (RBAC), permissions, protected routes, middleware guards, password hashing, MFA/2FA, refresh token rotation, CSRF protection, or integrating auth…

not rated 3 3mo ago A 136 tokens

cron-architecture

712

ogromwang/skills

Skill Claude CodeCodex

A design and implementation guide for Nanobot's scheduled-task system. It explains how scheduled jobs are stored, run asynchronously, and routed back to the conversation that created them.

not rated 3 7mo ago A 95 tokens original MIT

architecture-improve

713

MartinPLarsen/claude-architecture-skills

Skill Claude CodeCodex needs its repo

Use when you want architecture- and pipeline-level optimisation ideas for a repo — find god-nodes, tight coupling, duplicate subsystems, redundant pipeline hops, serial steps that could be parallel, idempotency/retry gaps, un-rehosted data — and have them drawn as proposed nodes on an existing architecture-map.…

not rated 3 3mo ago A 169 tokens original MIT

fusions

714

yangjing/skills

Skill Claude CodeCodex

Use this skill when working on Rust backend code or docs for the Fusion stack (v0.3): fusions, fusion-common, fusion-core, fusion-db, fusion-web, fusion-rpc, fusion-security, fusion-ai, standalone fusion-sql, fusion-mq, fusion-weixin, fusion-storage, hetuflow. Covers DI + typed ModelManager over sqlx via DbxPostgres…

not rated 3 changed 1mo ago A 257 tokens

skills

715

bybit-exchange/pay-docs

Skill Claude CodeCodex

Skill "skills" from bybit-exchange/pay-docs, covering bybit pay — ai integration skill, products overview, authentication (both products), required headers and signature construction.

not rated 3 2d ago A 0 tokens

fastapi-backend-ddd

716

sparsh2712/skills

Skill Claude CodeCodex

Domain-Driven Design implementation guidelines for async Python backends. Covers the 4-layer architecture (Infrastructure → Domain → Service → Interaction), the Repository pattern, Unit of Work, Aggregates, Value Objects, Entities, Bounded Contexts, and Ubiquitous Language. Use this skill whenever the user is building…

not rated 3 7mo ago A 0 tokens

whmcs-dev-skill

717

beingniloy/whmcs-dev-skill

Skill Claude CodeCodex

Advanced Senior WHMCS Developer & Architect skill for AI coding agents. Builds, debugs, maintains, and TESTS WHMCS Addon Modules, Provisioning (Server) Modules, Domain Registrar Modules, Payment Gateway Modules, and Action Hooks. Enforces WHMCS 8.x / 9.x best practices, modern PHP 8.1+/8.2+ standards, Laravel Capsule…

not rated 3 3mo ago B 130 tokens original MIT

aureuserp/agent-skills

Skill Claude CodeCodex

Build or refactor AureusERP Laravel plugins using the project’s plugin-manager and Filament conventions. Use when creating/updating plugin service providers, plugin registration, install/uninstall flow, dependency setup, admin/customer panel wiring, ACL and role permissions, policies, resources/clusters/pages/widgets…

not rated 3 8mo ago A 78 tokens

go-chi

719

eparodi/deepcut-skills

Skill Claude CodeCodex

Go/chi backend development standards — layering, error handling, concurrency, state management, testing, database patterns, and common AI traps. Load when writing Go code in the backend/ directory.

not rated 3 11d ago A 42 tokens

fluig-totvs

720

Wisleey/Skill-FLUIG-TOTVS-Cursor

Skill Claude CodeCodex

Implementa e altera processos Fluig/TOTVS (forms, events, workflow, datasets) seguindo o padrão do processo aberto. Use ao trabalhar com Fluig, TOTVS, Fluig Studio, displayFields, enableFields, validateForm, beforeSendValidate, servicetask, hAPI, zoom, pai-filho, datasets ou diagramas .process.

not rated 3 2mo ago A 79 tokens

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: