Backend and APIs skills

12,417 tagged Backend and APIs, measured the same way as everything else here.

Browse within: agents 124LLM 117skills 113agent 96azure 80agentic-ai 78api 72claude-code-plugin 59antigravity 56cli 51sdk 51nextjs 50claude-code-skills 49cybersecurity 46

ibm-self-serve-assets/building-blocks

Skill Claude CodeCodex needs its repo

Expert Confluent Cloud architect specializing in creating complete, production-ready streaming solutions with Infrastructure-as-Code (Terraform), Apache Flink SQL, and Python producers. Generates structured artifacts organized by domain (code, scripts, documentation) for repeatable, business-focused streaming…

not rated 24 today A SkillSpector: warn 60 tokens original Apache-2.0

netsuite-developer

338

joshOrigami/netsuite-developer

Skill Claude CodeCodex

Disciplined NetSuite SuiteScript 2.1, SuiteQL, SDF, and integration development with optional metadata provider contract and QA verification steps.

not rated 24 +1 4mo ago A 36 tokens

effect-rpc-cluster

339

mpsuesser/pi-effect-harness

Skill Claude CodeCodex needs its repo

Build typed RPC endpoints and cluster-distributed entities, singletons, cron jobs, and durable workflows with Effect's RPC and Cluster modules (Rpc/RpcGroup/RpcServer/RpcClient, Entity/Sharding/Singleton, Node/Bun bundles). Use when building RPC services or distributed/clustered Effect systems.

not rated 24 +1 2mo ago A 68 tokens original MIT

10router-add-provider

340

techysy/10router

Skill Claude CodeCodex

Self-serve adding a custom OpenAI/Anthropic-compatible upstream provider (baseUrl + its own API key + models) to a running 10Router — no source change, no repackage, live immediately. Use when the user wants to register a self-hosted gateway / sk-xxx / baseUrl as a routable node, or an agent needs to add a custom…

not rated 25 +6 today A SkillSpector: warn 87 tokens original MIT

pimenov/codex-first-skills-pack

Skill Claude CodeCodex

Designs stable API, interface, schema, event, CLI, module, and service contracts before implementation so callers, consumers, and future agents can depend on them safely. Use when creating or changing public/internal APIs, SDK surfaces, webhooks, GraphQL/REST/RPC routes, database or message contracts, module…

not rated 23 2mo ago A 100 tokens

feishu-bot-builder

342

Carl-AI-Lab/feishu-bot-builder

Skill Claude CodeCodex

A guide to building Feishu (also called Lark) chat robots and message integrations. Feishu is a workplace messaging platform.

not rated 23 3mo ago A 97 tokens original Apache-2.0

flutter-data-layer

343

junsuk5/survival-flutter-skills

Skill Claude CodeCodex

A guide to the data layer of a Flutter application: the part that gets, stores, and converts data for the rest of the app. It covers data sources, repositories, data-transfer objects, domain models, JSON conversion, and reactive storage with BehaviorSubject.

not rated 23 3mo ago A 113 tokens

StanfordSpezi/SpeziVibe

Skill Claude CodeCodex

Integrate patient-authorized EHR record retrieval into a digital health app using Fasten Connect — provider linking, webhook ingestion, FHIR record handling, and the data privacy decisions that come with holding the records.

not rated 23 yesterday A SkillSpector: warn 49 tokens original MIT

crudauth

345

benavlabs/crudauth

Skill Claude CodeCodex

Use when building or modifying authentication in a FastAPI app with crudauth (the crudauth PyPI package) — covers CRUDAuth, the AuthUserMixin / makeauthidentity user model, IdentityConfig, currentuser(...) gates, session + bearer transports, OAuth (Google/GitHub), email verification / password reset / change, custom…

not rated 23 2mo ago B 188 tokens original MIT

ash-framework

346

agentjido/jido_managed_agents

Skill Claude CodeCodex

Use this skill working with Ash Framework or any of its extensions. Always consult this when making any domain changes, features or fixes.

not rated 23 4d ago A SkillSpector: warn 29 tokens original Apache-2.0

remix

348

pi0/vite-plugin-remix3

Skill Claude CodeCodex needs its repo

Build and review Remix 3 applications using the remix npm package and subpath imports. Use when working on Remix app structure, routes, controllers, middleware, validation, data access, auth, sessions, file uploads, server setup, UI components, hydration, navigation, or tests.

not rated 23 4mo ago A 62 tokens copy · 86% MIT

Onlyicing1/Telegram-self-bot

Skill Claude CodeCodex

Stability engineering rules for the Telegram Self Bot. Use when investigating freezes, stuck asyncio operations, AI/Save stability, watchdogs, task cancellation, diagnostics, or runtime recovery.

not rated 23 today A 43 tokens

evjs

350

afx-team/evjs

Skill Claude CodeCodex

Develop, migrate, review, document, or debug evjs applications and framework code involving file-based pages, ev.config.ts, server functions, API routes, rendering, plugins, development, builds, and deployment.

not rated 23 changed 5d ago A SkillSpector: pass 45 tokens original MIT

lucianotonet/laravel-telescope-mcp

Skill Claude CodeCodex

Analyze and debug Laravel applications using Telescope MCP telemetry data including HTTP requests, exceptions, database queries, logs, jobs, mail, notifications, cache operations, redis commands, scheduled tasks, model events, gates, views, and dumps. Use when debugging application issues, investigating slow queries…

not rated 23 18d ago A SkillSpector: pass 83 tokens original MIT

bitrix

352

Poliklot/bitrix-agent-skill

Skill Codex

A specialist guide for 1C-Bitrix, a Russian content-management system and online-store platform. It examines the installed project, its standard modules, and local customisations before suggesting work.

not rated 22 1mo ago A SkillSpector: warn 267 tokens original MIT

eep-adopt-app

353

eep-dev/EEP

Skill Claude CodeCodex

User wants the Entity Engagement Protocol in their application—EEP, signed webhooks, SSE, gates, "agent-ready API," or running eep-dev/agent-adopt. Use for adopt EEP, add EEP, EEP webhooks, not for generic REST without EEP.

not rated 22 4d ago A SkillSpector: warn 63 tokens original Apache-2.0

sndev

354

yvain13/Market_research_app

Skill Claude CodeCodex

Build ServiceNow applications using the ServiceNow SDK and Fluent API (TypeScript). Use this skill whenever the user asks to create, scaffold, or generate ServiceNow apps, tables, flows, business rules, script includes, ACLs, or any Fluent-based metadata. Also trigger when the user mentions: "ServiceNow SDK", "Fluent…

not rated 22 3mo ago C 139 tokens

agent-email-patterns

355

agentmail-to/agentmail-skills

Skill Claude CodeCodex

Architecture patterns for AI agents that communicate over email -- why agents need dedicated inboxes rather than human email accounts, infrastructure/provider tradeoffs, one-inbox-per-agent, two-way conversation loops, human-in-the-loop drafts, WebSocket vs webhook event design, multi-agent topologies, OTP flows, and…

not rated 22 1mo ago A Socket: passSnyk: warn 125 tokens

Forgemind-git/agentic-command-center

Skill Claude CodeCodex

An advisory blueprint for planning your own AI command center — one chat or voice interface that runs your whole business by routing to internal systems you own. Guidance and architecture only; it explains the four phases (own your systems, connect your tools, expose them over MCP, unify under one command layer) but…

not rated 22 2mo ago A 96 tokens

api-doc-infer

357

xiaoweidotnet/suifeng-skills

Skill Claude CodeCodex

A skill for inferring REST API documentation from product descriptions, page layouts, database tables, fields, and business rules. REST APIs are interfaces that let software exchange data using web requests.

not rated 22 3mo ago A 145 tokens

slack-agent

359

vercel-labs/slack-agent-skill

Skill Claude Code needs its repo ✓ vendor

Use when building Slack agents/bots with eve (Vercel's filesystem-first agent framework), @vercel/connect, or eve/channels/slack. Covers defineAgent/defineTool patterns, Vercel Connect credential brokering, Slack channel setup, testing requirements, and quality standards.

not rated 22 1mo ago A 62 tokens original Apache-2.0

mcp-builder

360

basher83/lunar-claude

Skill Claude Code

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services through well-designed tools.

not rated 23 today A 31 tokens copy · 81% 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: