With FQL you can run complex queries over your FHIR meta data. Useful for gaining insight and quality control.
Try Firely Query Language using this project.
API
Project FHIR API
This is the FHIR endpoint of this project. You can use a FHIR client to read, add or update resources to your project. Basic authentication is required for writing.
Project ZIP API
Endpoint for uploading and downloading zip files synchronization [docs]