---
title: CMS-0057 Onyx Is Here to Help
description: Get compliant for CMS-0057 Interoperability and Prior Authorization Final Rule with Onyx's   Payer to Payer, Patient Access, Provider Access and Prior Authorization solutions
image: https://info.onyxhealth.io/hubfs/2025-best-in-klas-cms-payer-interoperability.svg
---

[![onyx-logo-white (1)-1](https://info.onyxhealth.io/hubfs/onyx-logo-white%20(1)-1.svg "onyx-logo-white (1)-1")](http://onyxhealth.io?hsLang=en)

# Helping You Get CMS-0057 Right. 

#### Onyx helped shape the CMS-0057 standards and we’re already powering live payer implementations with production-ready FHIR APIs.

###### The CMS-0057 deadline is coming fast. Requirements are complex, timelines are tight, and the internal lift is heavy. But you don’t have to navigate it alone.

###### Here’s how we make CMS-0057 compliance across Patient Access, Provider Access, Payer-to-Payer Exchange, and ePA simpler:

- ###### Cut through complexity**:** Understand exactly what CMS-0057 requires, and what it doesn’t.
- ###### **Rely on proven tech:** Scalable, standards-based FHIR APIs already live in payer environments.
- ###### Follow a clear plan: Step-by-step Playbooks and a milestone-driven roadmap that reduce risk and integrate seamlessly with your systems.

 

### Our Team is Here to Help

> "Your Playbooks...it's all spelled out, step-by-step, and man they are clear as day."
> 
> 
> 
> *IT Program Manager,  Large Regional Health Plan *

![2025-best-in-klas-cms-payer-interoperability](https://info.onyxhealth.io/hubfs/2025-best-in-klas-cms-payer-interoperability.svg "2025-best-in-klas-cms-payer-interoperability")

## Why Onyx?  

- ###### We set the standards – Helped draft CMS-0057 guides; lead roles in HL7, Da Vinci, CARIN, and FHIRBall.
- ###### Proven at scale – Built CMS Blue Button 2.0 for 60M+ Americans; live with federal agencies and commercial payers.
- ###### Recognized leader – Best in KLAS for CMS Payer Interoperability (2025); “Most Accurate & Relevant” by Black Book.
- ###### Simplifies compliance – Easy Playbooks, modular design, and seamless integration reduce lift, cost, and risk.
- ###### Partnership network – Works with your existing systems to simplify design, reduce complexity, and lower costs.
- ###### Built for what’s next – OnyxOS delivers scalable, secure, cloud-native FHIR solutions—ready for CMS-0057 and beyond.

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