Backend and APIs

19,654 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.

convex

721

PolarCoding85/convex-agent-skillz

Skill Claude Code needs its repo

Expert guidance for Convex backend development including queries, mutations, actions, schemas, authentication, scheduling, file storage, search, and Next.js integration. Use when working with Convex functions, database operations, convex/ directory code, or Next.js App Router with Convex. Triggers: convex functions…

not rated 16 8mo ago A 203 tokens original MIT

sandbox-server

722

Tsuchijo/sandbox-mcp

MCP server Claude CodeCodexCursor +2

FastAPI control plane for OpenSandbox that manages sandbox lifecycle on Docker (ready) and Kubernetes (planned) runtimes. Runs locally from the sandbox-server Python package.

not rated 16 1y ago A tokens not measured

swagger-mcp-server

725

tuskermanshu/swagger-mcp-server

MCP server Claude CodeCodexCursor +2

Model Context Protocol server for swagger endpoints. Runs locally from the swagger-mcp-server npm package.

not rated 16 1y ago A tokens not measured

Knuckles-Team/vector-mcp

Skill Claude CodeCodex

Select and connect the right vector-store backend for the vector-mcp MCP server — chromadb, postgres/pgvector, qdrant, couchbase, or mongodb — and supply the correct dbtype/connection parameters that every collection and search call needs. Use when the agent must decide which engine to target, wire up…

not rated 16 changed 7d ago A SkillSpector: pass 113 tokens original MIT

rails-api-controllers

729

Shoebtamboli/rails_claude_skills

Skill Claude CodeCodex

RESTful API controller patterns for Ruby on Rails. Use when: (1) Building JSON APIs, (2) API versioning, (3) Error handling and status codes, (4) Authentication with tokens/JWT, (5) Rate limiting, (6) CORS configuration, (7) Pagination and filtering, (8) API documentation, (9) Testing API endpoints.

not rated 16 4mo ago A 82 tokens original MIT

courier

731

trycourier/courier-skills

Skill Claude CodeCodex

Builds and debugs notifications with Courier. Use whenever code or a task involves Courier or its API, SDKs, CLI or MCP: sends on email, SMS, push, inbox, Slack, Teams or WhatsApp; templates, journeys, digests, preferences, providers, webhooks, tenants.

not rated 16 +1 changed yesterday A SkillSpector: pass 64 tokens original MIT

code-review-gate

732

wangheng19901021/skills

Skill Claude CodeCodex

Use when generating or reviewing Java backend code (Service/Controller/Mapper) that touches a database, Redis, MQ, RPC, SMS/email, or file writes. Applies a 5-gate checklist (requirements review, concurrency safety, transaction boundaries, null-safety, security) distilled from real production incidents, so…

not rated 16 18d ago A 76 tokens

igmarin/rails-ai-bridge

Instructions file GitHub Copilot

Copilot instructions for igmarin/rails-ai-bridge, covering demoapp — copilot context, anti-hallucination rules, engineering rules (read first), controllers & strong parameters and authentication & authorization.

not rated 16 13d ago A 1,820 tokens original MIT

front

736

myysophia/k8s-aiagent-ui

Cursor rule Cursor

You are an expert in JavaScript, React, Node.js, Next.js App Router, Zustand, Shadcn UI, Radix UI, Tailwind, and Stylus.

not rated 16 1y ago A 0 tokens

odoo-mcp

737

rachmataditiya/odoo-rust-mcp

Skill Claude CodeCodex

Autonomous Odoo ERP operations, schema inspection, workflow actions, reporting, and database queries via the Odoo MCP Server. Use whenever the user asks to query Odoo models (sale.order, account.move, stock.picking, purchase.order, res.partner, hr.employee, etc.), inspect fields and relations, perform safe data…

not rated 16 12d ago A 100 tokens original MIT

openapi-skills

738

openapi/openapi-skills

Plugin Claude Code

Bundles 11 skills · 681 tokens together

Agent skills for the Openapi API marketplace: company data (IT/EU/worldwide), official Italian business documents, KYC/risk reports, data verification, geocoding and cadastre, SMS/PEC/postal messaging, eIDAS e-signatures, electronic invoicing via SDI, automotive data and utilities.

not rated 15 1mo ago A tokens not measured original MIT

svg-chart

739

NUGURI-7/CoCoWork

Skill Claude CodeCodex

Render data into a standalone SVG chart file — bar, line, or pie. Use when the user provides numbers (inline, JSON, or CSV) and asks for a chart, graph, plot, trend, comparison, breakdown, or any visual summary of the data. Produces a self-contained .svg viewable in any browser; no external libraries required.

not rated 15 18d ago A SkillSpector: pass 75 tokens original MIT

nats

740

kaustavdm/nats-skill

Skill Claude CodeCodex

Use when developing with NATS messaging, deploying or embedding a NATS server, working with JetStream streams/consumers/KV/object-store, configuring NATS security or clustering, or building microservices on the NATS protocol.

not rated 15 7mo ago A 48 tokens original MIT

s-gw

741

sgateway/s-gw

Skill Claude CodeCodex

Use s-gw when working with credentials, private keys, API tokens, SSH identities, browser credentials, or other sensitive data in agentic coding workflows. Prefer typed handles and local approved execution over exposing raw secret values to a model.

not rated 15 5d ago A 51 tokens original Apache-2.0

webdev-mcp

742

fefergrgrgrg/smileyCoinDev

MCP server Claude CodeCodexCursor +2

An MCP server that provides useful web development tools via MCP server. Runs locally from the webdev-mcp npm package.

not rated 15 1y ago A tokens not measured original MIT

cpipe

743

stefanwebb/named-pipes

Skill Claude Code

Use cpipe to discover, inspect, and send commands to named-pipe tool servers.

not rated 15 1mo ago A 21 tokens CC-BY-SA-4.0

tray-api

744

tray-tecnologia/tray-api-ai-plugin

Cursor rule Cursor needs its repo

Regras e documentação da API Tray. Aplica quando o desenvolvedor trabalhar com autenticação OAuth, produtos, pedidos, clientes, webhooks, frete, pagamentos ou qualquer outro recurso da plataforma Tray. Inclui convenções obrigatórias de autenticação, formato de payload, rate limit e índice completo de skills com…

not rated 15 2mo ago A 70 tokens original MIT

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