BillFixr

Proprietary — © 2026 BillFixr Solutions, LLC. All rights reserved.

About

Medical bills are confusing, error-prone, and expensive to dispute — most people don't have the time, expertise, or energy to sit on the phone with a billing department arguing over a duplicate charge or a misapplied insurance rate. BillFixr exists to take that burden off patients entirely.

A user uploads a medical bill, and BillFixr's AI reviews it line by line to catch billing errors, duplicate charges, mathematical mistakes, and insurance coverage discrepancies — the kinds of overcharges that routinely slip through and go unchallenged. When errors are found, BillFixr generates a formal negotiation letter and handles the back-and-forth with the provider on the patient's behalf, following up until a resolution is reached, so the patient never has to make the call themselves.

The product is built around a simple promise: review before you pay. A bill shouldn't have to be a burden, and BillFixr's job is to make sure patients only ever pay what they actually owe.

How it works

1. Upload your bill — the patient uploads their medical bill.
2. We review & detect errors — AI scans it for overcharges, duplicate fees, and coverage discrepancies.
3. We negotiate for you — BillFixr generates and sends negotiation documents to the provider, and follows up until it's resolved.
4. You save money — the patient receives their corrected, reduced bill.

Who it's for

BillFixr is available to individuals 18 or older residing in the United States who are reviewing a medical bill that belongs to them, or that they have legal authorization to act on behalf of.

AI backend

Two Python services under services/:

• ai-service — ingestion, OCR, extraction, case analysis, draft generation.
• automation-engine — audit rules and the negotiation autopilot (follow-ups, replies, settlement, the revised bill, the completion fee).

The web app reaches both through one seam, src/lib/aiStack.ts, which answers what is configured, what is reachable, and where to look a hospital's billing contacts up. Everything else goes to whichever service owns it.

Neither is deployed. No AI_SERVICE_BASE_URL or AUTOMATION_ENGINE_BASE_URL is set in any environment, so every AI path answers "unavailable" and no case advances on its own. Deploying them is the remaining work: see docs/AUTOMATION-ENGINE.md, which also covers the order it has to happen in — the engine cannot start a negotiation until something has extracted a bill.

CI runs the TypeScript suite only. The Python suites (32 for the engine, 41 for ai-service) have to be run by hand.

How BillFixr is paid

A small commitment fee is charged when a bill is submitted for analysis. If errors are found and the bill is successfully reduced, a success fee is charged as a percentage of the savings. If no errors are found, no success fee applies.