mcp-server-nih-clinicaltrials

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 (FastMCP) or Node/TypeScript (MCP SDK).

Diagnose and fix HTTP requests that fail (403, timeout, or connection reset) against CDN-protected APIs that block standard Python clients via TLS/JA3 fingerprinting. Use when adding or debugging outbound HTTP to ClinicalTrials.gov or any upstream where httpx/requests are silently rejected but a browser or curl works.