Backend and APIs

18,686 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.

svg-chart

697

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 9d ago A SkillSpector: pass 75 tokens original MIT

nats

698

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 5mo ago A 48 tokens original MIT

s-gw

699

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 today A 51 tokens original Apache-2.0

webdev-mcp

700

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

wp-cli

701

thenguyenvn90/claude-wp-cli

Skill Claude Code

WordPress management via REST API — posts, pages, media, taxonomy, ACF fields, schema, guarded publishing (slug-guard, markdown-leak, em-dash, drift), SEO meta (RankMath/Yoast/generic with focus-keyword merge), comments, plugins, users, search, menus, widgets, and settings. Use when the user wants to create, update…

not rated 15 2mo ago A 128 tokens original MIT

valibot

702

open-circle/agent-skills

Plugin Claude Code

Bundles 1 skill · 56 tokens together

Schema validation with Valibot, the modular and type-safe schema library.

not rated 15 19d ago A tokens not measured copy · 86% MIT

rails-api-controllers

703

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 2mo ago A 82 tokens original MIT

tray-api

704

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 28d ago A 70 tokens original MIT

noerd-dev/noerd

Skill Claude CodeCodex

Use this skill when creating or changing a Noerd detail or page component (-detail.blade.php, -page.blade.php + details/-detail.yml, pages/-page.yml): record forms, form fields and tabs, relation fields and their Selected events, relation forms, detail action buttons, embedded lists, the relation box, form themes…

not rated 15 +2 changed 6d ago A SkillSpector: pass 142 tokens original MIT

code-review-gate

706

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 15 +2 2d ago A 76 tokens

dsh-plugin-dev

707

zimodzh/dsh-plugin-dev-skills

Skill Claude CodeCodex

An authoritative development guide for DeepSeek Harness plugins. DeepSeek Harness is a system where models, tools, services, events, and adapters are built as plugins.

not rated 14 +29 changed 5d ago A 156 tokens original MIT

query-rule

708

Rengod95/expo_template

Cursor rule Cursor

A rule for API requests and React Query hooks, which are React helpers for fetching and caching server data. It covers file structure, query-key factories, types, and fetcher functions.

not rated 14 1y ago A 0 tokens

cpipe

709

stefanwebb/named-pipes

Skill Claude Code

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

not rated 14 2mo ago A 21 tokens CC-BY-SA-4.0

supabase

712

HA7CH/cv-pro

MCP server Claude CodeCodexCursor +2

Supabase's hosted MCP server: lets the agent manage projects, tables, SQL and migrations. Remote server at mcp.supabase.com.

not rated 14 1mo ago A tokens not measured

cashfree-mcp

714

cashfree/cashfree-mcp

MCP server Claude CodeCodexCursor +2

Cashfree MCP server for cashfree docs and APIs. Runs locally from the @cashfreepayments/cashfree-mcp npm package. Needs 9 environment variables to run.

not rated 14 5mo ago A tokens not measured

swagger-mcp-server

715

gulbaki/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 14 1y ago A tokens not measured

convex_rules

716

HomenShum/NodeBenchAI

Cursor rule Cursor

Guidelines and best practices for building Convex projects, including database schema design, queries, mutations, and real-world examples.

not rated 14 today A 4,645 tokens original MIT

daraja

717

jameskanyiri/DarajaMCP

MCP server Claude CodeCodexCursor +2

A simple to use payments module around the Mpesa Daraja API. Runs locally from the daraja Python package.

not rated 14 4mo ago A tokens not measured

mcp-shipxy-api

718

garrettXu/mcp-shipxy-api

MCP server Claude CodeCodexCursor +2

Shipxy MCP server and CLI for maritime vessel, port, route, weather, and tide APIs. Runs locally from the mcp-shipxy-api Python package.

not rated 14 +1 3mo ago A tokens not measured

apifox-test-scenario

719

apifox/apifox-cli-skills

Skill Claude CodeCodex

A guide for building and managing Apifox test scenarios, which are ordered workflows that check how several API calls and other actions work together.

not rated 14 2mo ago A 111 tokens

dataverse

720

codeurali/mcp-dataverse

MCP server Claude CodeCodexCursor +2

73 tools for Microsoft Dataverse: CRUD, FetchXML, metadata, audit, batch, role privileges and more. Runs locally from the mcp-dataverse npm package. Needs 2 environment variables to run.

not rated 14 +1 1mo ago A tokens not measured 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: