--- title: "Onyx Ranked #1 — Black Book 2026 Payer Interoperability & ePA" description: "Onyx ranked #1 overall in Black Book's 2026 report on FHIR-based payer interoperability and ePA — first in 11 of 18 KPIs. Download the full research report." --- [Skip to content](https://info.onyxhealth.io/black-book-2026-report#main-content) ![](https://info.onyxhealth.io/hubfs/Onyx%20Logo%20White.svg)Homepage - [Default HubSpot Blog](https://onyxhealth-8504347.hs-sites.com/blog?hsLang=en) Get started - [Default HubSpot Blog](https://onyxhealth-8504347.hs-sites.com/blog?hsLang=en) Get started [![Onyx](https://info.onyxhealth.io/hubfs/onyx-logo-white%202.svg)](https://onyxhealth.io/?hsLang=en)[Download the Report](https://info.onyxhealth.io/black-book-2026-report#download) 2026 Black Book Market Research # Onyx Ranked #1 Overall for FHIR-Based Payer Interoperability & ePA Black Book Market Research ranked Onyx first overall in its Q3 2026 report on FHIR-based payer interoperability and ePA, based on feedback from 764 qualified healthcare respondents. Onyx placed first in 11 of 18 key performance indicators. [Download the Full Report](https://info.onyxhealth.io/black-book-2026-report#download)[View Black Book's Announcement →](https://www.accessnewswire.com/newsroom/en/healthcare-and-pharmaceutical/onyx-earns-no.-1-overall-ranking-in-2026-black-book-fhir-based-payer-1203731) Black Book evaluates solutions using validated customer and end-user experience rather than vendor submissions, sponsorships, paid participation, analyst opinion, or product demonstrations. ![Black Book 2026 report cover](https://info.onyxhealth.io/hubfs/Landing%20Pages/Images/report-cover.png) ![Black Book seal](https://info.onyxhealth.io/hubfs/Landing%20Pages/Images/black-book-seal.jpg) What set Onyx apart ## #1 Across 11 Key Performance Indicators Black Book recognized Onyx across more than regulatory execution, with leadership spanning interoperability, connected healthcare data, workflow integration, analytics, governance, intelligence, and platform operations. Regulatory + API Execution 2 Regulatory Alignment and CMS-0057 Execution Readiness Patient, Provider, and Payer-to-Payer API Coverage Data + Workflow 3 Clinical Data Acquisition, Normalization, and Quality Workflow Integration Across UM, Risk, Quality, and Care Management Provider Network Activation and Adoption Governance + Intelligence 3 Security, Privacy, Consent, and App Governance Analytics, Operational Metrics, and Audit-Ready Reporting AI-Enabled Clinical Document Intelligence and Automation Governance Platform + Ecosystem 3 Partner Ecosystem and Deployment Flexibility Developer Experience, App Onboarding, and API Operations Roadmap Credibility and Standards Upgrade Discipline From interoperability to intelligence ## Build the foundation once. Create greater value from the data. Rather than deploying a new solution for every mandate, Onyx helps health plans build a reusable interoperability foundation that acquires, normalizes, and governs healthcare data once. That trusted foundation enables intelligence across digital quality, risk adjustment, care gap closure, payment integrity, and other critical payer priorities—improving outcomes, strengthening financial performance, and unlocking greater enterprise value. Download the report ## Get the Full Research See the complete vendor rankings, individual KPI results, market trends, and methodology behind Black Book's 2026 payer interoperability and ePA research. ![Black Book 2026 report cover](https://info.onyxhealth.io/hubfs/Landing%20Pages/Images/report-cover.png) ### Get the Full Report By submitting this form, you agree that Onyx may contact you about this report and related products and services. See our [Privacy Policy](https://onyxhealth.io/privacy-policy-2/?hsLang=en). [View Black Book's announcement →](https://www.accessnewswire.com/newsroom/en/healthcare-and-pharmaceutical/onyx-earns-no.-1-overall-ranking-in-2026-black-book-fhir-based-payer-1203731) 55+ Health plans 25+ State Medicaid programs 1 in 6 Americans supported ![Onyx](https://info.onyxhealth.io/hubfs/onyx-logo-white%202.svg) Copyright 2026 Onyx Technology, LLC | All Rights Reserved Disclaimer: FHIR® is the registered trademark of HL7 and is used with the permission of HL7. Black Book™ and the Black Book logo are trademarks of Black Book Market Research LLC. [Privacy Policy](https://onyxhealth.io/privacy-policy-2/?hsLang=en)[Terms of Use](https://onyxhealth.io/terms-of-use/?hsLang=en)[Contact](https://onyxhealth.io/contact/?hsLang=en) [![](https://info.onyxhealth.io/hubfs/Onyx%20Logo%20White.svg)](http://onyxhealth.io?hsLang=en) - [Default HubSpot Blog](https://onyxhealth-8504347.hs-sites.com/blog?hsLang=en) --- Privacy Policy · Legal · © 2026 Onyx Technology. All rights reserved.