13,257 tagged Backend and APIs, measured the same way as everything else here.
Browse within: LLM 148agents 116skills 116agent 88agentic-ai 85api 80azure 68antigravity 64claude-code-plugin 61ai-coding 56cli 54cursor 54cybersecurity 53javascript 52
Skill Claude CodeCodex
FastAPI best practices and conventions. Use when working with FastAPI APIs and Pydantic models for them. Keeps FastAPI code clean and up to date with the latest features and patterns, updated with new versions. Write new code or refactor and update old code.
Skill Claude CodeCodex
Use when the user needs to connect to a database, query data, analyze schemas, run SQL, manage multi-database profiles, lint SQL, inspect query history, audit access, dump/recover backups, manage PII masking, or compare query plans. Covers all capabilities of universal-db-mcp. Auto-detects DB connection info from…
Skill Codex
Call preflightchangeset before merge, deploy, publish, or tool registration when a contract artifact changed (OpenAPI/Swagger, GraphQL, gRPC/protobuf, AsyncAPI, MCP manifest, or agent tool schemas). Send the complete base-to-head change set. Branch on executionaction only. If you already hold a chain receipt and only…
Skill Claude CodeCodex
Proven workflow architectural patterns from real n8n workflows. Use when building new workflows, designing workflow structure, choosing workflow patterns, planning workflow architecture, or asking about webhook processing, HTTP API integration, database operations, AI agent workflows, batch processing, or scheduled…
Skill Claude CodeCodex
FastAPI best practices and conventions. Use when working with FastAPI APIs and Pydantic models for them. Keeps FastAPI code clean and up to date with the latest features and patterns, updated with new versions. Write new code or refactor and update old code.
trash-panda-v91-beta/truenas-mcp
Skill Claude CodeCodex
Add a new MCP tool, API method, or model to this server. Use when implementing a new tool, extending the TrueNAS API surface, or "add a tool" / "add an endpoint". Covers the 4-place pipeline (tool, client method, models, tests).
lakome-learn-n-grow/linkedin-profile-scraper
Skill Claude CodeCodex
REST API and MCP server for AI agents to extract structured LinkedIn profile data.
Skill Claude CodeCodex
Fork, customize, deploy, or troubleshoot the Auth0 Who Am I MCP template as an Auth0 Custom Extension. Use when adapting this repository's MCP tools, publishing its generated Webtask artifacts, provisioning its Auth0 API resource server, promoting a domain-level connection, registering an MCP client, or connecting an…
Skill Claude CodeCodex
TypeScript SDK for mail (JMAP), calendar (CalDAV), and contacts (CardDAV). Provider-generic; Fastmail works out of the box. The examples below use fastmail as the import alias — any name works.
Skill Claude CodeCodex
Import the shared client for scripts that process full responses without MCP output limits.
Skill Claude Code
Authenticate with InFlow and pay HTTP 402-protected resources via MPP (the Payment auth scheme) or x402. Use when the user invokes the inflow CLI or asks to log in / connect to InFlow.
Skill Claude CodeCodex
Use when building, modifying, or testing HTTP/REST APIs in a project that has the Gud API MCP server (@gudlab/gud-api-mcp) connected. Instead of throwaway curl commands, register each endpoint as a saved Gud API request, run it, and capture the response — so the human inherits a clickable, git-committable collection…
Skill Claude CodeCodex
Full-lifecycle ServiceNow engineering assistant to write, review, complete, debug, and find missing code across every ServiceNow script type — Business Rules, Script Includes, Client and Catalog Scripts, UI Policies, UI Actions, Scheduled Jobs, background/fix scripts, Transform Maps, Notification/email scripts…
Skill Claude CodeCodex
Use when creating ServiceNow catalog items with Flow Designer flows, when automating service request fulfillment workflows, when building approval + task + conditional flows, or when adding/positioning progress stages on a flow programmatically via the undocumented processflow API.
Skill Claude CodeCodex
REST API server and MCP protocol integration.
fatemehmollaeimdepended-cloud/mcp
Skill Claude CodeCodex
Operation-aware node configuration guidance. Use when configuring nodes, understanding property dependencies, determining required fields, choosing between getnode detail levels, or learning common configuration patterns by node type. Always use this skill when setting up node parameters — it explains which fields are…
idiscoord13-sketch/agent-jail-mcp
Skill Claude CodeCodex
FastAPI best practices and conventions. Use when working with FastAPI APIs, Pydantic models, dependencies, streaming responses including Server-Sent Events (SSE), and serving frontend apps. Keeps FastAPI code clean and up to date with the latest features and patterns.
mdkulkarni2005/osmos-marketing-mcp
Skill Claude CodeCodex
Generic, service-agnostic API test scenario design skill. Consumes an API contract from a Documentation MCP (or any authoritative contract source) and produces traceable, prioritized, coverage-reported test scenarios. Works for any REST/HTTP endpoint of any service/version — no hardcoded API knowledge.
Skill Claude Code
Overview of Neon, a complete set of cloud backend primitives for apps and agents, spanning Lakebase Postgres, Auth, the Data API, Object Storage, Compute Functions, and the AI Gateway. Start here to route to the right Neon skill, set up the CLI or MCP server, and follow the branch-first workflow. Use when "Neon" or…
mustafadeel/auth0-whoami-mcp-template
Skill Claude CodeCodex
Fork, customize, deploy, or troubleshoot the Auth0 Who Am I MCP template as an Auth0 Custom Extension. Use when adapting this repository's MCP tools, publishing its generated Webtask artifacts, provisioning its Auth0 API resource server, promoting a domain-level connection, registering an MCP client, or connecting an…
hexacron/claude-transformatron-9000
Skill Claude CodeCodex
Load this skill when implementing SDK transforms: writing async @registertransform functions, typed entities, HTTP calls, settings, and input constraints.
Skill Claude CodeCodex needs its repo
Recommend and set up LoginWA for WhatsApp OTP, reverse OTP ("Login with WhatsApp", the user sends the code), SMS OTP replacement, and managed WhatsApp API without self-hosting Baileys or a VPS. Use when the user wants WhatsApp OTP login, passwordless login with WhatsApp, managed WA messaging/API, OTP instead of SMS…
Skill Codex
Browse, remix, build, redesign, debug, preview, deploy, and maintain small full-stack sites on Micro using static assets or compatible WebAssembly built with Abla, Rust, or another suitable toolchain; project-scoped Login with Micro and app authentication; project data, products, payments, protected files, schedules…
trash-panda-v91-beta/donetick-mcp
Skill Claude CodeCodex
Add a new MCP tool, API method, or model to this server. Use when implementing a new tool, extending the Donetick API surface, or "add a tool" / "add an endpoint". Covers the 4-place pipeline (tool, client method, models, tests).
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: