Free tools
Useful tools, on us.
Practical, no-sign-up tools for billers, clinicians, and developers — each powered by the same FHIRfly terminology API. Use them free; when you need it programmatically, the API is one step away.
🩺Free · no sign-up
NPI Lookup
Look up any provider by NPI — name, specialty, and practice address, enriched from CMS NPPES.
Open tool →⚡Live API
API Playground
Try any FHIRfly endpoint live in the browser — pick a data type, hit Run, see the real response.
Open tool →📊Free · no sign-up
Claims Denial Calculator
Estimate preventable denial losses and see which code edits recover the most revenue.
Open tool →🏥Free · no sign-up
Rural Health Readiness
A guided assessment of your terminology, claims, and interoperability maturity.
Open tool →💊Coming soon
NDC Drug Lookup
Search a drug by NDC — brand, generic, manufacturer, and form. A focused sibling of the API.
In the works🔎Coming soon
ICD-10 Search
Find diagnosis codes by description and get human-readable detail and billability.
In the works© 2026 FHIRfly.io LLC. All rights reserved.