13,189 tagged Backend and APIs, measured the same way as everything else here.
Browse within: LLM 148agents 118skills 114agent 86agentic-ai 86api 82azure 68antigravity 66ai-coding 64claude-code-plugin 62cursor 54cli 53cybersecurity 53javascript 52
Skill Claude CodeCodex
Teaches an LLM agent to scaffold, configure, validate, package, upload, and deploy Apigee X / hybrid API proxies by orchestrating the 18 MCP tools exposed by the apigee-proxy-skill MCP server. The agent never writes XML by hand — tools generate policy XML from 25 Jinja2 templates, validate bundles with defusedxml…
Skill Claude Code
Guide to setting up third-party authentication for a Notion Worker. Covers brokered credentials for external-service API keys / personal access tokens, OAuth, and plaintext environment secrets only when worker code needs the value. Use when the worker needs credentials for a non-Notion API, not for Notion API tokens…
Skill Claude Code
Fix a broken OpenAPI spec in jentic-public-apis with an OpenAPI Overlay, validate it (spectral lint + idempotency check), and contribute it back via a PR to the community catalog. Falls back to applying the same overlay to the local Jentic registry if the user can't wait for maintainer approval, and closes the loop by…
Skill Claude CodeCodex
This skill implements a complete REST API service for managing a book collection in Python with Flask and SQLite database.
Skill Claude Code
MANUAL TRIGGER ONLY: invoke only when user types /zeroid. Identity infrastructure for AI agents — register identities, issue tokens, delegate to sub-agents, revoke credentials, and manage credential policies via the Zeroid REST API.
Skill Codex
Use when creating, reviewing, or fixing OctoBus JavaScript service packages from API docs, request examples, existing implementations, or proto/service manifests. Helps generate npm-compatible service packages with service.json, package.json bin, proto contracts, SDK handlers, config/secret schemas, and tests.
Skill Claude Code
Use when building, debugging, reviewing, shipping, or verifying an Oxy custom-app bundle (a code-first React/Vite app served by Oxy at /customer-apps/ / /), including writing Oxy Functions, driving them from the UI, and checking a published app in the browser with the Playwright MCP server (no CI checks a published…
Skill Claude CodeCodex
A code-search skill for finding information in framework source code using retrieval and grep, a command-line text search tool. It is used when the agent needs to inspect backend framework code.
Skill Codex
Design or review specx core scope boundaries in Python services. Use when deciding where code belongs across packaged scoped foundation bases, optional local foundation extensions, core/, capabilities, delivery, infrastructure, shared/, and ioc; when adding guardrails or splitting use cases, services, DTOs, schemas…
SebastienDegodez/copilot-instructions
Skill Claude CodeCodex
Use when domain logic leaks into API/Infrastructure, project references violate layer boundaries, or you need to decide between CQS (always), CQRS bus (complex domains), and DDD patterns (invariants and events).
Skill Claude CodeCodex
Zero-knowledge secrets infrastructure — AI agents manage the complete credential lifecycle without ever seeing values.
Skill Claude CodeCodex
This skill should be used when the user provides a Tushare API document URL and asks to generate a full plugin in this codebase, including extractor, schema, config, query service, and agent/MCP/http usage with testable curl examples.
Skill Claude CodeCodex
Connect WhatsApp to your product with Kapso: onboard customers with setup links, detect connections, receive events via webhooks, and send messages/templates/media. Also manage WhatsApp Flows (create/update/publish, data endpoints, encryption). Use when integrating WhatsApp end-to-end.
iPythoning/b2b-sdr-agent-template
Skill Claude CodeCodex
Register these commands with @BotFather using /setcommands.
Skill Claude CodeCodex
Manage MCP servers in Nuxt with @nuxtjs/mcp-toolkit — setup, create tools/resources/prompts, organize with handlers, build interactive MCP Apps, add elicitation/logging/sessions, review, and troubleshoot.
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. Use when building MCP servers to integrate external APIs or services, whether in Python (MCPServer) or Node/TypeScript (MCP SDK).
Skill Claude CodeCodex
Use the rsigma CLI and MCP server: engine eval, engine daemon, rule lint, rule draft, rule tune, rule backtest, backend convert, mcp serve. Prefer MCP tools when rsigma mcp serve is connected. For authoring Sigma YAML (detection, correlation, filters, pipelines, modifiers), use the sigma-rules skill. Use this skill…
leeguooooo/cross-request-master
Skill Claude CodeCodex
A tool for reading and synchronising YApi interface documentation, where YApi is a system that documents software APIs and their request and response data.
Skill Claude CodeCodex
Guidelines for writing and executing Google Apps Script code using ggsrun and finding documentation via workspace-developer. Use when developing or running GAS applications.
Skill Claude CodeCodex
Use when working with Payload projects (payload.config.ts, collections, fields, hooks, access control, Payload API). Use when debugging validation errors, security issues, relationship queries, transactions, or hook behavior.
Skill Claude CodeCodex
Spiceflow is a super simple, fast, and type-safe API and React Server Components framework for TypeScript. Works on Node.js, Bun, and Cloudflare Workers. ALWAYS load this skill BEFORE writing or editing ANY spiceflow code, including one-line changes: routes, pages, layouts, loaders, server actions, forms…
Skill Claude CodeCodex needs its repo
Documents existing Go HTTP APIs with go-swagger3 godoc @ annotations and struct tags, then generates OpenAPI 3 specs. Use when the user asks to document an API, add Swagger/OpenAPI comments, generate oas.json/yml, or mentions go-swagger3.
Skill Claude CodeCodex
Add a new storage or service provider to the core package. Use when implementing a new backend for StorageService (e.g., a new database) or a new service provider (e.g., a new LLM backend).
Skill Claude CodeCodex
Use when building email features, emails going to spam, high bounce rates, setting up SPF/DKIM/DMARC authentication, implementing email capture, ensuring compliance (CAN-SPAM, GDPR, CASL), handling webhooks, retry logic, making emails accessible (alt text, headings, contrast, screen readers), or deciding transactional…
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: