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.

glue

649

guywaldman/glue

Skill Claude CodeCodex

Official Glue IDL guide for agents. Use when designing, writing, reviewing, validating, or generating code from Glue files and .gluerc config for TypeScript, Python, Rust, Go, OpenAPI, JSON Schema, or Protobuf.

not rated 18 6d ago A 52 tokens

powersync

650

powersync-ja/agent-skills

Skill Claude Code

Best practices for building and maintaining applications with PowerSync: Cloud and self-hosted setup, sync configuration, client SDK usage, backend integration (Supabase, custom Postgres, MongoDB, MySQL, MSSQL), schema changes, watch and reactive queries (useQuery), attachments, the upload queue, and debugging. Use…

not rated 18 changed today A Socket: passSnyk: failSkillSpector: pass 193 tokens original MIT

quicknode-skill

651

quiknode-labs/blockchain-skills

Skill Claude CodeCodex

Quicknode blockchain infrastructure for 80+ chains: Core RPC API, Streams, Webhooks, Blazar WSS, Solana gRPC, HyperCore gRPC, SQL Explorer, Metaplex DAS API, Blockbook, Ordinals & Runes API, Swap API, x402, MPP, Agent Subscriptions, CLI, and MCP. Use for any Quicknode product, blockchain data access, or wallet-paid…

not rated 18 28d ago B 93 tokens original MIT

Cheggin/minecraft-use

Skill Codex

Designs and builds Convex components with isolated tables, clear boundaries, and app-facing wrappers. Use this skill when creating a new Convex component, extracting reusable backend logic into a component, building a third-party integration that owns its own tables, packaging Convex functionality for reuse, or when…

not rated 18 4mo ago A 95 tokens GPL-3.0

liveblocks

653

liveblocks/liveblocks-mcp-server

MCP server Claude CodeCodexCursor +2

MCP server "liveblocks" as configured in liveblocks/liveblocks-mcp-server. Runs locally from the github:liveblocks/liveblocks-mcp-server npm package. Needs 1 environment variable to run.

not rated 18 4mo ago A tokens not measured original Apache-2.0

whmcs-dev-skills

654

Waqasahmedwaseer/whmcs-dev-skills

Skill Claude CodeCodex

Senior WHMCS Developer & Architect skill for AI coding agents. Builds, debugs, and maintains 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+ standards, Laravel Capsule ORM, Smarty v4…

not rated 18 7mo ago A 127 tokens GPL-2.0

auth-rbac-scaffold

656

apisec-inc/apisec-skills

Skill Claude CodeCodex

Use when developer is implementing authentication, building login/logout flows, writing JWT validation, adding middleware, creating role-based access control, building permission systems, or asking how to protect routes. Also triggers on keywords: auth, bearer token, JWT, session, middleware, permissions, roles…

not rated 18 6mo ago A 98 tokens original MIT

pandadata-api

657

quantskills/skill-pandadata-api

Skill Claude CodeCodex

A reference guide for the Pandadata Python SDK, based on bundled Chinese API documentation.

not rated 18 1mo ago A 100 tokens GPL-3.0

castle-x/skills-x

Skill Claude CodeCodex needs its repo

Integrate PocketBase as a Go library using the github.com/castle-x/goutils/pocketbase (gopb) package to build single-binary full-stack applications. Use when building Go applications that need user authentication, embedding PocketBase into Go binary, registering custom API routes, managing default users, serving…

not rated 18 4mo ago A 92 tokens original MIT

stream-flutter

659

GetStream/agent-skills

Skill Claude Code

Build and integrate Stream Chat, Video, and Feeds in Flutter apps. Use for Flutter/Dart project work with Stream package setup, auth wiring, and widget blueprints. Supports streamchatflutter (pre-built Chat UI), streamchatfluttercore (custom Chat UI), streamvideoflutter (Video calling and livestreaming), and…

not rated 18 8d ago A SkillSpector: warn 112 tokens original Apache-2.0

svix

660

svix/ai

Plugin Claude Code

Bundles 2 skills · 194 tokens together

Teaches AI agents to send and receive webhooks the way Svix's own engineers would.

not rated 18 15d ago A tokens not measured original MIT

cob-shopify-mcp

661

callobuzz/cob-shopify-mcp

MCP server Claude CodeCodexCursor +2

Production-grade MCP server and CLI tool for Shopify Admin GraphQL API. Runs locally from the cob-shopify-mcp npm package.

not rated 18 yesterday A tokens not measured original MIT

stitchapi-docs

662

rejifald/StitchAPI

MCP server Claude CodeCodexCursor +2

StitchAPI documentation search, running locally over MCP stdio. Bundled docs, no network calls per query — the offline/air-gapped counterpart to the hosted stitchapi.dev/api/mcp server. Runs locally from the @stitchapi/docs-mcp npm package.

not rated 18 +1 2d ago A tokens not measured original Apache-2.0

dmvcframework-jsonrpc

663

danieleteti/delphi-ai-skills

Skill Claude CodeCodex

Use when building or consuming a JSON-RPC 2.0 endpoint with DelphiMVCFramework — publishing a plain Delphi class as remotely callable methods, or calling one from a Delphi client. Triggers on "JSON-RPC", "JSONRPC", "MVCFramework.JSONRPC", "RPC method", "PublishObject", "TMVCJSONRPCController", "TMVCJSONRPCPublisher"…

not rated 18 1mo ago A 139 tokens original Apache-2.0

telegram-skills

664

serejaris/telegram-skills

Plugin Claude Code

Bundles 4 skills · 332 tokens together

Telegram Bot API 10.2 Rich Messages skills: send structured documents, block JSON, uploaded media, galleries, maps, and streaming AI replies.

not rated 18 +2 1mo ago A tokens not measured original MIT

laravel-security

665

nklofy/code-agent-skills

Skill Claude CodeCodex

Laravel security best practices — authentication, authorization, Eloquent safety, CSRF, XSS prevention, API security, and secure deployment configurations.

not rated 18 +1 2mo ago A 32 tokens original Apache-2.0

activitypub-mcp

666

cameronrye/activitypub-mcp

MCP server Claude CodeCodexCursor +2

Read-only-by-default MCP server: let LLMs explore the Fediverse — Mastodon, Misskey, Pleroma. Runs locally from the activitypub-mcp npm package. Needs 2 environment variables to run.

not rated 17 2d ago A tokens not measured original MIT

convex-agent

667

PolarCoding85/convex-agent-skillz

Skill Claude Code

Build AI agents with persistent threads, tool calling, and streaming on Convex. Use when implementing chat interfaces, AI assistants, multi-agent workflows, RAG systems, or any LLM-powered features with message history.

not rated 17 7mo ago A 47 tokens original MIT

cms-cultivator

668

kanopi/cms-cultivator

Plugin Claude Code

Bundles 26 skills · 2,523 tokens together

Agent Skills and specialist agents for Drupal and WordPress development. PR workflows (create, review, release, conventional commits), design-to-code (Figma → WordPress blocks / Drupal paragraphs) with responsive styling and real-browser validation, test scaffolding and coverage analysis, documentation generation…

not rated 17 9d ago A tokens not measured GPL-2.0

banco-inter-api

669

whyrnld/banco-inter-api-skill

Skill Claude CodeCodex

Use esta skill para implementar, revisar, depurar, testar, migrar ou explicar integrações com a plataforma de desenvolvedores do Banco Inter Empresas, incluindo OAuth 2.0 + mTLS, Banking, Pix, Pix Automático, Cobrança Boleto com Pix V3, Webhooks, Sandbox, SDKs, CNAB, Crédito Empresas e Crédito Imobiliário.

not rated 17 20d ago A 83 tokens original MIT

dbos-java

670

dbos-inc/agent-skills

Skill Claude CodeCodex

DBOS Java SDK for building reliable, fault-tolerant applications with durable workflows. Use this skill when writing Java or Kotlin code with DBOS, creating workflows and steps, using queues, integrating DBOS with Spring Boot, using DBOSClient from external applications, or building JVM applications that need to be…

not rated 17 19d ago A SkillSpector: pass 69 tokens original MIT

documentator-api-docs

671

tsitsishvili/documentator

Skill Claude CodeCodex

Build, change, diagnose, or verify Laravel API endpoints documented by tsitsishvili/documentator. Use for routes, controllers, closures, FormRequests, inline validation, API Resources, Eloquent models, Spatie Data, Laravel Actions, HTTP QUERY operations, callbacks, webhooks, streaming responses, recorded examples…

not rated 17 29d ago A SkillSpector: pass 107 tokens original MIT

mcp

672

apideck-libraries/mcp

MCP server Claude CodeCodexCursor +2

Apideck Unified API MCP — 330 tools across 200+ SaaS connectors (accounting, CRM, HRIS, ATS). Runs locally from the @apideck/mcp npm package. Needs 3 environment variables to run.

not rated 17 1mo ago A tokens not measured original MIT

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