I built a tiny API that detects champion loss in B2B SaaS

I’ve been working in RevOps for 10 years, and one pattern keeps showing up: accounts don’t churn because of usage issues first, they churn because the champion drifts away.

Champion drift is silent. No ticket. No alert. No one notices until renewal dies.

I wanted a small, code-first way to detect this earlier, so I built a tiny FastAPI service:

- You send a list of stakeholders, their roles, activity dates, and renewal date - The API returns a risk score (0 to 1), a risk level, and the reasons - It flags things like: * Champion hasn't been seen in 60 to 90 days * Champion left the company * Renewal is approaching without an active internal owner

Repository: https://github.com/malukutty/champion-drift-detector-api Interactive docs at /docs once you run it locally.

This is not a product. Just a minimal piece of logic that I think should exist in the world. If you have ideas to make the scoring smarter or want to extend it, I’d love feedback.