Backend and APIs plugins

ombulabs/claude-code_rails-upgrade-skill

Plugin Claude Code

Plan and execute Rails version upgrades following FastRuby.io methodology.

aws-samples/serverless-samples

Plugin Claude Code ✓ vendor

Centralized org configuration sync for Claude Code.

starbaser/ccproxy

Plugin Claude Code

Guides users through ccproxy — a mitmproxy-based LLM API interceptor — with SDK integration, OAuth authentication, sentinel key substitution, transform routing, and troubleshooting.

giuseppe-trisciuoglio/developer-kit

Plugin Claude Code

Comprehensive Java development toolkit with Spring Boot, testing, LangChain4J, and AWS integration.

okx/onchainos-skills

Plugin Claude Code

onchainos-skills. Skills for AI agents to integrate with the OKX OnchainOS API — Wallet, token discovery, market data, DEX swap, and transaction broadcasting.

Wh1isper/mcp-email-server

Plugin Claude Code

Email MCP tools with safe, non-secret setup and diagnostic guidance.

AbdoKnbGit/tau

Plugin Claude Code

Plugin marketplace listing 1 plugin: tau-git-memory.

AbdoKnbGit/tau

Plugin Claude Code

Git-backed local memory store for Tau sessions, with branch-aware recall and manual capture.

streamthoughts/jikkou

Plugin Claude Code

Official Jikkou skills for AI agents: manage Kafka topics, ACLs, quotas, schemas, and connectors declaratively with the Jikkou CLI.

lzwme/finance-quant-skills

Plugin Claude Code

Plugin marketplace listing 2 plugins: quant-skills, quant-data-api.

intellectronica/agent-skills

Plugin Claude Code

Generate and edit images using Google's Nano Banana Pro (Gemini 3 Pro Image) API. Use when the user asks to generate, create, edit, modify, change, alter, or update images. Also use when user references an existing image file and asks to modify it in any way (e.g., "modify this image", "change the background"…

prassanna-ravishankar/repowire

Plugin Claude Code

Repowire mesh usage skills for AI coding agents: cross-agent review and planning, delegate, usage patterns, and install/update. Backend-agnostic and parameterised on the agent you choose.

rrezartprebreza/spring-boot-skills

Plugin Claude Code

Plugin marketplace listing 2 plugins: spring-boot-4-skills, spring-boot-3-skills.

zapier/sdk

Plugin Claude Code

Agent skills and verified examples for writing Zapier SDK code that works.

novotnyllc/dotnet-artisan

Plugin Claude Code

Comprehensive .NET development skills for modern C#, ASP.NET, MAUI, Blazor, and cloud-native applications.

healthchainai/HealthChain

Plugin Claude Code

Build healthcare AI services with HealthChain: FHIR gateways, validated FHIR resources, and typed agent tools.

ItamarZand88/CLI-Anything-WEB

Plugin Claude Code

Plugin marketplace listing 1 plugin: cli-anything-web.

microsoft/Dataverse-skills

Plugin Claude Code ✓ vendor

Microsoft Dataverse plugin for coding agents, covering record CRUD, bulk data operations, advanced queries, schema and metadata, administration, security, environment management, and solution lifecycle through MCP, CLI, and SDK workflows.

secondsky/claude-skills

Plugin Claude Code

Skill for integrating Better Auth - comprehensive TypeScript authentication framework for Cloudflare D1, Next.js, Nuxt, and 15+ frameworks. Use when adding auth, encountering D1 adapter errors, or implementing OAuth/2FA/RBAC features.

secondsky/claude-skills

Plugin Claude Code

Comprehensive Bun runtime toolkit covering runtime, package manager, bundler, testing, HTTP servers, WebSockets, databases, framework integrations (Hono, Next.js, Nuxt, TanStack Start, SvelteKit), deployment, and Node.js compatibility.

agenticmail/agenticmail

Plugin Claude Code

Give every Claude Code agent its own real email address and phone number. Self-hosted, runs entirely on the user's machine. Coordinate work across multiple agents using ordinary email threads.

team-telnyx/ai

Plugin Claude Code

Plugin marketplace listing 11 plugins: telnyx-whatsapp, telnyx-voice, telnyx-messaging, telnyx-email, telnyx-tts.

kataras/jwt

Plugin Claude Code

The jwt skill: a development guide for the jwt JSON Web Token library for Go.

kataras/jwt

Plugin Claude Code

Development guide for the jwt JSON Web Token library for Go: signing and verifying tokens, claims and expiry, algorithm choice (HMAC/RSA/RSA-PSS/ECDSA/EdDSA), kid-based key rotation, JWKS fetch/refresh/publish, blocklisting and testing.