Backend and APIs

18,746 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.

swift-networking

1081

jeremieb/swift-unit-test-instructions

Skill Claude CodeCodex

Builds a protocol-based async/await networking layer with URLSession, testable abstractions, error handling, and mock support for Swift projects. Use when user says "add networking", "create an API layer", "fetch data from API", "build a network service", "add URLSession", "implement HTTP requests", "create a REST…

not rated 5 6mo ago A 82 tokens original MIT

nestjs-hexagonal

1082

Softtor/nestjs-hexagonal

Plugin Claude Code

Bundles 10 skills, 8 agents · 1,211 tokens together

Skills for building NestJS bounded contexts with Hexagonal Architecture, DDD, and CQRS patterns. Covers domain modeling, application layer, infrastructure wiring, presentation, full TDD workflow, and architecture review.

not rated 5 1mo ago A tokens not measured original MIT

anvil-bridge

1083

matshoppenbrouwers/anvil-uplink-cli

Skill Claude CodeCodex

Inspect live Anvil Data Tables and invoke server callables from the terminal via the anvil-uplink-cli tool (anvil-bridge). Use when the user references an Anvil app, asks to query/read/inspect a Data Table row, needs to call an @anvil.server.callable function against a deployed app, or mentions files like anvil.yaml /…

not rated 5 4mo ago A 144 tokens original MIT

yopiesuryadi/mailbot-programmable-inbox

Skill Claude CodeCodex

Integrate mailbot API for AI agent email automation. Create programmable inboxes, send and receive emails, track delivery events, and handle email-based workflows via API, SDK, or MCP Server. Use when building AI agents that need email identity, when setting up agent-to-human communication, when replacing Gmail or…

not rated 5 5mo ago A 130 tokens

jeffsenso/prestashop-skills

Skill Claude CodeCodex

Complete PrestaShop module development workflow using modern architecture and best practices. Use when: creating new PrestaShop modules, updating legacy modules to modern code, implementing hooks and actions, setting up module configuration pages, adding front office features, handling database operations…

not rated 5 18d ago A 89 tokens original MIT

kong-konnect

1086

Kong/ai-marketplace

Plugin Claude Code

Bundles 21 skills · 1,150 tokens together

Portable Kong Konnect skills plus remote MCP configuration for Claude Code.

not rated 5 23d ago A tokens not measured original MIT

verify-et-api

1087

NegusNati/verify-et-api

Skill Claude CodeCodex

Integrate, test, debug, and harden Verify.et transaction verification API implementations. Use when building Verify.et server-side adapters, payment or checkout verification, webhook receivers, polling or SSE status flows, API-key auth, idempotency, credits or quota handling, bank-specific payloads, or production…

not rated 5 3mo ago A 67 tokens original MIT

ghost-headless-blog

1088

kasuncfdo/ghost-headless-blog-skill

Plugin Claude Code

Bundles 1 skill · 97 tokens together

Headless Ghost CMS blog for Next.js App Router — Content API client, ISR + webhook revalidation, tag/author/paged archives with author bio + social rendering, SEO metadata + JSON-LD, sitemap, Ghost koenig-card styling, blur-up images. Battle-tested patterns with copy-paste templates.

not rated 5 1mo ago A tokens not measured original MIT

hookdeck/agent-skills

Cursor rule Cursor

Use hookdeck listen for local webhook testing—prefer it over ngrok or public endpoints; never test in production.

not rated 5 24d ago A 23 tokens original MIT

agent-public-apis

1091

hfcorriez/agent-public-apis

Skill Claude CodeCodex

Call verified no-key public APIs. Use when the user needs a free HTTPS API with no signup — weather, geo, news, crypto, dictionaries, test data, or any category in the index.

not rated 5 24d ago A 45 tokens original MIT

standaarden

1092

developer-overheid-nl/skills-standaarden

Plugin Claude Code

Bundles 10 skills · 435 tokens together

CONCEPT — Skills voor Nederlandse overheidsstandaarden (beheerd door Logius): API Design Rules, Digikoppeling, OAuth NL, FSC, Logboek Dataverwerkingen, CloudEvents, BOMOS, E-Government en Publicatie-tooling. Bevat 10 skills voor 77 GitHub repositories verdeeld over 9 domeinen.

not rated 5 changed 2d ago A tokens not measured EUPL-1.2

abp-dev

1093

smss123/ABP-ai-skills

Skill Claude CodeCodex

Expert guide for developing applications with the ABP Framework (abp.io) using ASP.NET Core, DDD patterns, and Razor Pages / MVC UI. Use this skill whenever the user mentions ABP, abp.io, Volo.Abp, AbpModule, application services, aggregate roots, domain services, ABP CLI, IRepository, PermissionDefinitionProvider…

not rated 5 2mo ago A 171 tokens GPL-3.0

graft

1094

schrepa/graft

Skill Codex

Use when building, refactoring, or documenting Graft apps and proxies, including when asked to create a tool server, API server, dual-protocol server, or MCP-HTTP bridge. Graft's core thesis: define tools once and serve them as both HTTP REST endpoints and MCP tools from the same server, with discovery, docs, and…

not rated 5 5mo ago A Socket: passSnyk: pass 119 tokens original Apache-2.0

oastools

1095

erraggy/oastools

Plugin Claude Code

Bundles 5 skills, 1 hook · 86 tokens together

OpenAPI Specification tools — validate, fix, convert, diff, walk, and generate from OAS 2.0-3.2 documents.

not rated 5 14d ago A tokens not measured original MIT

api-to-example

1096

surfmind-space/awesome-surfmind

Skill Claude CodeCodex

Turns REST API documentation into a runnable curl, fetch, or code example with required headers, request body, and placeholders for secrets. Use when the user wants to generate a request from API docs, an endpoint, or a Swagger/OpenAPI spec — "give me a curl for this", "show a fetch example", "how do I call this API".

not rated 5 1mo ago A 75 tokens original MIT

srnichols/plan-forge

Instructions file GitHub Copilot needs its repo

Dapr patterns for .NET — building blocks, component config, sidecar architecture, multi-tenant isolation, workflows, state management, secrets.

not rated 5 4d ago A ✓ AI review 4,968 tokens original MIT

shopline-oauth

1098

lunw/shopline-ai-toolkit-dsh

Skill Claude CodeCodex

SHOPLINE app authorization and request signing. Use when implementing OAuth 2.0 authorization (public/custom apps), exchanging codes for access tokens, refreshing tokens, signing GET/POST requests with HMAC-SHA256, or verifying SHOPLINE webhook/callback signatures.

not rated 5 +1 16d ago A 57 tokens original MIT

laravel-packages

1099

anilcancakir/my-claude-code

Skill Claude CodeCodex

Laravel Filament v4 admin panel, Debugbar development, SEOTools, third-party packages. ALWAYS activate when: working with admin panel, Filament resources, forms, tables, SEO meta tags, debugging. Triggers on: Filament form field, admin CRUD, resource table, action button, widget, Debugbar query log, N+1 detected, SEO…

not rated 5 7mo ago A 121 tokens original MIT

teams-dev

1100

microsoft/Build26-DEM332-from-zero-to-teammate-in-25-minutes-build-a-teams-agent-live

Skill Claude CodeCodex ✓ vendor

Use this skill whenever the user mentions Microsoft Teams in a development context — whether they're building, integrating, configuring, debugging, or just asking questions. Covers bots, message extensions, embedded web apps, Adaptive Cards, dialogs, SSO, infrastructure, the Teams Developer CLI/SDK, and general Teams…

not rated 5 23d ago A 82 tokens original MIT archived

polar-integration

1101

polarsource/skills

Skill Claude CodeCodex

Add Polar billing to a TypeScript/JavaScript app using the @polar-sh/sdk package. Use this skill whenever the user wants to add a Checkout endpoint, a Customer Portal endpoint, or a Webhooks endpoint for Polar to any framework — Next.js, Express, Hono, Astro, SvelteKit, Remix, TanStack Start, Nuxt, Fastify, Elysia…

not rated 5 11d ago A 98 tokens

aftermath-perpetuals

1102

AftermathFinance/skills

Skill Claude CodeCodex

Integrate and troubleshoot the current Aftermath HTTP/OpenAPI and WebSocket API, including native perpetuals, CCXT, DCA and limit orders, pools, farms, staking, prices, auxiliary utilities, wallet/auth endpoints, and operational safety. Use for raw Aftermath API requests, endpoint schemas, API failures, and API-side…

not rated 5 21d ago A 89 tokens original Apache-2.0

oidc-hosted-page-go

1103

ssojet/skills

Skill Claude CodeCodex

Implement "Sign in with SSO" in Go applications using SSOJet OIDC Authorization Code flow.

not rated 5 6mo ago A 28 tokens

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