How do I install the MCP Server Builder skill?

Run npx skills-ws install mcp-server-builder in your project. The skill is added to your agent's skills directory (.claude/skills, .cursor/skills, .agents/skills, or the OpenClaw workspace skills/ directory) and works with Claude Code, OpenClaw, Cursor, Codex, and GitHub Copilot.

Which AI coding assistants support the MCP Server Builder skill?

MCP Server Builder works with any agent that supports the SKILL.md standard, including openclaw, claude-code, cursor, codex.

Is the MCP Server Builder skill free?

Yes. MCP Server Builder is MIT-licensed open source and free to use. Source code is on GitHub at github.com/san-npm/skills-ws.

MCP Server Builder skill

MCP Server Builder is an agent skill for AI coding assistants (Claude Code, OpenClaw, Cursor, Codex). Build production MCP servers: tool/resource/prompt schemas (Zod/Pydantic), Streamable HTTP + stdio (spec 2025-11-25, SSE legacy), OAuth 2.1 bearer auth, FastMCP (Python) and @modelcontextprotocol/sdk (TS), Stripe + x402 v2 monetization, deploy. Use when shipping, monetizing, or deploying an MCP server or wrapping a REST API as tools. Install with: npx skills-ws install mcp-server-builder.

devv1.11.0Updated Aug 2026

copied ✓

openclawclaude-codecursorcodex

0 installsSecurity scan: cleanSource code

MCP Server Builder — Production Skill

Pick the transport first. stdio for local-process servers (Claude Desktop, CLI). Streamable HTTP for everything remote/shared/monetized — StreamableHTTPServerTransport in TS (@modelcontextprotocol/sdk v1.x), FastMCP in Python. The two standard transports are stdio and Streamable HTTP. The old HTTP+SSE transport (/sse + /messages) is legacy/deprecated (replaced in spec 2025-03-26, current spec 2025-11-25); ship it only as a backward-compat appendix for old clients (see §2c).

Build production-grade Model Context Protocol servers that wrap any REST API into AI-callable tools, with three-tier auth, monetization, and battle-tested deployment.

Related skills: for the consuming side (connecting to / calling MCP servers) see mcp-client; for general agent architecture see ai-agent-building; for REST contract/versioning design see api-design; for the Stripe billing details behind §7 see stripe-billing; for the SSRF/secret-handling depth in §9 see security-hardening.

Reference guide

Read only the references needed for the current request:

When to Use: references/when-to-use.md
1. MCP Architecture Overview: references/1-mcp-architecture-overview.md
2. Server Setup — TypeScript (@modelcontextprotocol/sdk): references/2-server-setup-typescript-modelcontextprotocol-sdk.md
3. Server Setup — Python (FastMCP, the mcp package): references/3-server-setup-python-fastmcp-the-mcp-package.md
4. Tool Schema Design (JSON Schema): references/4-tool-schema-design-json-schema.md
5. REST API to MCP Pattern: references/5-rest-api-to-mcp-pattern.md
6. Three-Tier Authentication: references/6-three-tier-authentication.md
7. Monetization Strategy: references/7-monetization-strategy.md
8. Express.js Architecture: references/8-express-js-architecture.md
9. Security: references/9-security.md
10. Monitoring & Logging: references/10-monitoring-logging.md
11. Deployment: references/11-deployment.md
12. Testing with Claude Desktop & Claude Code: references/12-testing-with-claude-desktop-claude-code.md
13. Listing on mcpservers.org: references/13-listing-on-mcpservers-org.md
Tools: references/tools.md
Quick Start: references/quick-start.md
14. Environment Variables Reference: references/14-environment-variables-reference.md
15. Common Patterns & Gotchas: references/15-common-patterns-gotchas.md
16. Complete Production Checklist: references/16-complete-production-checklist.md
Appendix A: Graceful Shutdown: references/appendix-a-graceful-shutdown.md
Appendix B: Redis Rate Limiter (Production): references/appendix-b-redis-rate-limiter-production.md
Appendix C: Tool Registration Helper: references/appendix-c-tool-registration-helper.md

MCP Server Builder — Production Skill

Reference guide

Related Dev skills