Backend and APIs

19,593 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.

oauth

25

vercel-labs/portless

Skill Claude CodeCodex ✓ vendor

Configure OAuth providers (Google, Apple, Microsoft, Facebook, GitHub, etc.) to work with portless local dev URLs. Use when setting up OAuth redirect URIs, fixing "redirecturimismatch" or "invalid redirect" errors, configuring sign-in providers for local development, or when a provider rejects .localhost subdomains.…

not rated 13k +64 today A Socket: passSnyk: passSkillSpector: pass 115 tokens original Apache-2.0

convex-quickstart

26

get-convex/convex-backend

Skill Codex

Initializes a new Convex project from scratch or adds Convex to an existing app. Use this skill when starting a new project with Convex, scaffolding with npm create convex@latest, adding Convex to an existing React, Next.js, Vue, Svelte, or other frontend, wiring up ConvexProvider, configuring environment variables…

not rated 13k 24d ago A SkillSpector: warn 108 tokens

MemTensor/MemOS

Skill Claude CodeCodex

Control browser automation through HTTP API. Supports page navigation, element interaction (click, type, select), data extraction, accessibility snapshot analysis, screenshot, JavaScript execution, and batch operations.

not rated 12k +77 2d ago A SkillSpector: warn 42 tokens original Apache-2.0

client-migration

28

Arize-ai/phoenix

Cursor rule Cursor

The arize-phoenix package consists of a sub-package named arize-phoenix-client which has the full functionality to communicate to the phoenix server. There is a legacy client exported at the top level of the arize-phoenix package that is being deprecated. Here are common migration patterns.

not rated 12k +87 today A 0 tokens

target-connector

29

cocoindex-io/cocoindex

Skill Claude CodeCodex

This skill should be used when creating a new target connector for CocoIndex to integrate with external systems. It provides guidance on implementing TargetHandler, TargetActionSink, and related types for declarative target state synchronization with change detection and automatic cleanup.

not rated 12k +40 changed 16d ago A SkillSpector: pass 52 tokens original Apache-2.0

backend

30

0xJacky/nginx-ui

Cursor rule Cursor

You are an expert in Go, Gin, Gorm, Gen, Cosy (https://cosy.uozi.org/) with a deep understanding of best practices and performance optimization techniques in these technologies.

not rated 12k +54 yesterday A 441 tokens AGPL-3.0

app-builder-sdk

31

holaboss-ai/holaOS

Skill Claude CodeCodex

Build a new holaOS app using @holaboss/app-builder-sdk (5 backend primitives + optional shadcn dashboard UI). The canonical path for vibe-coded apps — integration modules AND dashboard apps both live here.

not rated 11k +13 9d ago A SkillSpector: warn 47 tokens

pinchtab

32

pinchtab/pinchtab

Skill Codex

Use this skill when a task needs browser automation through PinchTab: open a website, inspect interactive elements, click through flows, fill out forms, scrape page text, reuse a dedicated automation profile with user approval, export screenshots or PDFs, manage multiple browser instances, or fall back to the HTTP API…

not rated 11k +82 changed 1mo ago A Socket: warnSnyk: warnSkillSpector: warn 94 tokens original MIT

plugin-development

33

higress-group/higress

Cursor rule Cursor

Plugin Development Standards - Applies to all new wasm and golang-filter plugins.

not rated 9.7k +35 today A 0 tokens original Apache-2.0

webiny/webiny-js

Skill Claude CodeCodex

Creating Headless CMS content models via code using the ModelFactory pattern. Use this skill when the developer wants to create, modify, or understand content model definitions, define fields and validators, set up reference fields between models, configure field layouts (including nested layouts inside object or…

not rated 8.0k +3 changed yesterday A SkillSpector: warn 313 tokens

deep-research

35

xerrors/Yuxi

Skill Claude CodeCodex

A method for organising research that uses several sources and needs fact checking. It breaks a broad question into smaller investigations, checks important claims and combines the results into a cited report.

not rated 7.6k +55 changed 11d ago A SkillSpector: pass 69 tokens original MIT

orval

36

orval-labs/orval

Skill Claude CodeCodex needs its repo

Generate type-safe API clients, TanStack Query/SWR hooks, Zod schemas, MSW mocks, Hono server handlers, MCP servers, and SolidStart actions from OpenAPI specs using Orval. Covers all clients (React/Vue/Svelte/Solid/Angular Query, Fetch, Axios), custom HTTP mutators, authentication patterns, NDJSON streaming…

not rated 6.6k +13 yesterday A Socket: passSnyk: passSkillSpector: warn 83 tokens original MIT

genkit-ai/genkit

Skill Claude CodeCodex needs its repo

Best practices for authoring Genkit tooling, including CLI commands and MCP server tools. Covers naming conventions, architectural patterns, and consistency guidelines.

not rated 6.6k +9 yesterday A SkillSpector: pass 35 tokens original Apache-2.0

better-t-stack

38

AmanVarshney01/create-better-t-stack

Skill Claude CodeCodex

Create or extend an end-to-end type-safe TypeScript project with Better-T-Stack (create-better-t-stack). Use when the user wants to start, scaffold or bootstrap an app, API, fullstack project or monorepo with any of Next.js, TanStack Router or Start, React Router, Nuxt, Svelte, Solid, Astro, React Native, Hono…

not rated 5.9k +5 13d ago A 149 tokens original MIT

tinybase

39

tinyplex/tinybase

Plugin Claude Code

Bundles 1 skill · 90 tokens together

Official TinyBase skills for scaffolding, extending, persisting, and synchronizing local-first applications.

not rated 5.2k +7 15d ago A tokens not measured original MIT

apollo-router

40

clidey/whodb

Skill Claude Code

Version-aware guide for configuring and running Apollo Router for federated GraphQL supergraphs. Generates correct YAML for both Router v1.x and v2.x. Use this skill when: (1) setting up Apollo Router to run a supergraph, (2) configuring routing, headers, or CORS, (3) implementing custom plugins (Rhai scripts or…

not rated 5.0k +4 yesterday A 140 tokens original Apache-2.0

varlock

41

dmno-dev/varlock

Skill Claude CodeCodex needs its repo

Secure environment variable management with Varlock. Use when handling secrets, API keys, credentials, or any sensitive configuration. Ensures secrets are never exposed in terminal, logs, or LLM context. Provides guidance around integrating varlock into a project, reading/editing .env.schema and other .env files…

not rated 4.9k +41 changed 27d ago A Socket: passSnyk: passSkillSpector: warn 109 tokens original MIT

firebase

42

firebase/firebase-tools

Plugin Gemini CLI

MCP configuration declaring 1 server: firebase.

not rated 4.5k +4 today A tokens not measured original MIT

ardanlabs/service

Skill Claude CodeCodex

Enforce primitive-at-edges / strong-types-in-Business layering and the toBus/fromBusResponse/toDB converter pattern. Use when writing, editing, or auditing Go files under app/, business/domain/, or .../stores/db.

not rated 4.1k +5 13d ago A SkillSpector: pass 56 tokens original Apache-2.0

pinme-uniwebpay

44

glitternetwork/pinme

Skill Claude CodeCodex

Use when generating, modifying, or reviewing PinMe Worker (Cloudflare Worker TypeScript) code that accepts payments through UniwebPay — payment links, products/prices, checkout sessions, payment status reads, refunds, subscriptions, or handling UniwebPay webhooks with @uniwebpay/sdk in a PinMe project.

not rated 3.8k +2 1mo ago A SkillSpector: warn 71 tokens original MIT

easy-api-mcp

45

open-wa/wa-automate-nodejs

Skill Claude CodeCodex

Teaches AI agents how to connect to the open-wa hosted MCP surface via Easy API.

not rated 3.7k +1 8d ago A SkillSpector: warn 23 tokens

claude-api

46

oboard/claude-code-rev

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.

not rated 3.3k +3 2mo ago A SkillSpector: pass 0 tokens

controller

47

cool-team-official/cool-admin-midway

Cursor rule Cursor

A set of coding rules for controllers, the parts of an application that receive requests and return responses. It covers route prefixes and manual or automatic handling.

not rated 3.3k +1 3mo ago A 5 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: