HCM-LLM MCP Server

A FastAPI-based server that enables AI assistants to perform Highway Capacity Manual (HCM) transportation engineering calculations and semantic searches over HCM documentation. It provides specialized tools for complete Chapter 15 two-lane highway analysis following standard engineering methodologies.

→ crosstraffic/highway-capacity-manual-mcp · listed on glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find.

Install from

Glama

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configDB_MODE

configCHROMA_DB_PATH— ./chroma_db

configPUBLIC_SUPABASE_URL

configPUBLIC_SUPABASE_API— your-anon-key / service-role-key

configPORT

configHOST

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 1 concrete improvement we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/crosstraffic-highway-capacity-manual-mcp-3iib7d)](https://m8ven.ai/mcp/crosstraffic-highway-capacity-manual-mcp-3iib7d)

commit: 5e4d49fbe0070b955011178837c40f60a6ea1c8f

code hash: 83487a728b7109777b159bbf549ca7149208b73d4a00aafe74c28735b2b45f9a

verified: 6/17/2026, 12:21:33 PM

view raw JSON →