About
openmud is an open-source AI platform built for heavy civil and underground utility construction — estimators, project managers, supers, and field engineers.
Mission
Most construction software is built by people who've never run a crew, never bid a job, never stood at the bottom of a 10-foot trench figuring out soil type. The tools don't speak the language. The pricing data is wrong. The AI gives generic answers that would get you fired on a public works project.
openmud is built differently. The AI is trained on actual construction context — pipe sizing, trench specs, labor and equipment rates, bid structure, OSHA standards. The calculators use real engineering equations. The resources are sourced from public domain federal standards, not generic safety content. And the whole thing is open source, so people who actually know the work can make it better.
The goal: from bid to closeout, openmud has a tool, a reference, or an answer. Free. No paywall. No lock-in.
Navigate the platform
Contech API
The estimating and chat engine is available as an API for integration into your own tools and workflows. If you're building construction software and want a working AI backend tuned for heavy civil, openmud's API is a starting point.
API status: checking…
Contact
If you work in construction and want to contribute, have better pricing data, or want to talk about what openmud is building — reach out.