Best Specification AI Skills & MCP Servers
18 curated Specification skills and MCP servers — install any of them into Claude, Cursor, ChatGPT, n8n, or any AI stack with one command.
Agent Permissions
Cross-agent permission policy specification for AI coding agents
Permission
Cross-agent permission policy specification for AI coding agents
Permissions
Cross-agent permission policy specification for AI coding agents
Server Sdd
MCP Server for Spec-Driven Development - Create and manage SDD test specifications with tasks, logs, and acceptance criteria
Openapi Generator
Generates MCP server code from OpenAPI specifications
Plugin
Model Context Protocol (MCP) plugin for Kubb, generating MCP-compatible tools and schemas from OpenAPI specifications for AI assistants.
From Openapi
Production-ready library for converting OpenAPI specifications into MCP tool definitions
Mcp
Model Context Protocol (MCP) server for Kubb, enabling AI assistants to generate code from OpenAPI specifications.
Server
MCP server for Doppler API with auto-generated tools from OpenAPI specification
Mcp4Openapi
Universal MCP server that generates tools from any OpenAPI specification
Agent Perms
Cross-agent permission policy specification for AI coding agents
Agent Permissions Policy
Cross-agent permission policy specification for AI coding agents
Agents Permissions
Cross-agent permission policy specification for AI coding agents
Agents Spec
Cross-agent permission policy specification for AI coding agents
Ask262
MCP server for understanding Javascript internals from ECMAScript specification. Provides vector search over the ECMAScript spec, section content retrieval, and JavaScript code execution with spec section tracing via engine262.
Openapi To
Convert OpenAPI specifications to MCP (Model Context Protocol) servers with optional Emcy telemetry
Api
MCP Server for OpenAPI Specification
Spectool
MCP server for SpecTool design specifications
About Specification skills on iClaude
iClaude is the universal install layer for AI skills. Every Specification skill on this page can be installed into Claude Code, Claude Desktop, Cursor, ChatGPT, n8n, Codex, and more — using a single copy-paste command. No config drift, no per-stack adapters, no manual MCP wiring.