| API Name | Classification | Description | Official Documentation |
|---|---|---|---|
| Terra API | Freemium | Unified health data from Apple, Fitbit, Garmin, Oura, and more | Terra API Documentation |
| Apple HealthKit | Free | Health and fitness tracking from iOS devices | HealthKit Documentation |
| Google Fit | Free | Aggregated fitness and wellness data on Android | Google Fit Documentation |
| Fitbit Web API | Free (with OAuth); Paid for commercial use | Access Fitbit wearable data (steps, heart rate, sleep, nutrition) | Fitbit API Documentation |
| Garmin Health API | Free with Partnership Approval | Access health/fitness data from Garmin wearables | Garmin Health API Documentation |
| Oura Cloud API | Free for personal use; Paid for enterprise | Sleep, readiness, activity scores from Oura Ring | Oura API Documentation |
| Withings API | Free | Body metrics, blood pressure, heart rate, sleep from Withings devices | Withings API Documentation |
| Biostrap API | Free | Medical-grade health metrics (heart rate, oxygen, sleep) | Biostrap API Documentation |
| Validic API | Paid | Unified data from 570+ wearables and remote monitoring devices | Validic API Documentation |
| API Name | Classification | Description | Official Documentation |
|---|---|---|---|
| OpenMRS API | Open-Source | Open-source EMR system; access patients, encounters, clinical forms | OpenMRS API Documentation |
| OpenEMR API | Open-Source | Open-source EHR; access charts, appointments, billing | OpenEMR API Documentation |
| Medplum API | Open-Source / Freemium Cloud | Open-source cloud FHIR server and healthcare backend | Medplum API Documentation |
| Epic FHIR API | Freemium | Access Epic patient data (demographics, labs, meds) via FHIR | Epic FHIR API Documentation |
| Cerner Ignite API | Freemium | Access Cerner Millennium EHR clinical data via FHIR | Cerner Ignite API Documentation |
| Allscripts API | Freemium | FHIR API to Allscripts EHRs for patients, scheduling, notes | Allscripts API Documentation |
| Athenahealth API | Freemium | Integrate scheduling, billing, and patient data from AthenaNet | Athenahealth API Documentation |
| API Name | Classification | Description | Official Documentation |
|---|---|---|---|
| Twilio Programmable Messaging/Video API | Paid | HIPAA-eligible SMS, video, voice for telehealth apps | Twilio for Healthcare |
| Vonage Video API | Paid | HIPAA-compliant video conferencing for telemedicine | Vonage Video API |
| Bluestream Health API | Freemium | Telehealth API platform (secure video visits, EHR workflows) | Bluestream Health API |
| API Name | Classification | Description | Official Documentation |
|---|---|---|---|
| openFDA API | Free | Drug safety, recalls, adverse events data | openFDA API Documentation |
| DrugBank API | Freemium | Drug properties, pharmacology, interactions database | DrugBank API Documentation |
| RxNorm API | Free | Standardized drug names, codes, ingredient mappings | RxNorm API Documentation |
| DailyMed API | Free | FDA-approved drug labels and dosage info | DailyMed API Documentation |
| API Name | Classification | Description | Official Documentation |
|---|---|---|---|
| ClinicalTrials.gov API | Free | Registry and details of clinical trials worldwide | ClinicalTrials.gov API Documentation |
| NCBI E-Utilities API | Free | Access to biomedical literature, genomics databases (PubMed, GenBank) | NCBI E-Utilities API Documentation |
| Ensembl REST API | Free | Genomic data retrieval (variants, annotations) | Ensembl REST API Documentation |
| API Name | Classification | Description | Official Documentation |
|---|---|---|---|
| Redox API | Paid | Normalize and integrate EHR data across hospitals | Redox API Documentation |
| Particle Health API | Paid | Unified patient health history aggregation via HIEs | Particle Health API Documentation |
| Human API | Paid | Aggregates health data from hospitals, labs, wearables | Human API Documentation |
| Ribbon Health API | Paid | Provider directory and insurance data (costs, quality ratings) | [Ribbon Health API Documentation](https://ribbon.readme.io/docs/welcome-to-the-ribbon-health-api?_gl=1*pl7gzy*_gcl_au*NTgwMjI2ODc4LjE3NDU3MTk3NDc.*_ga*MTg0NTE0MTAxLjE3NDU3MTk3NDc.*_ga_94W66G7ZVC*MTc0NTcxOTc0Ni4xLjAuMTc0NTcxOTc0Ni42MC4wLjA.) |
| API Name | Classification | Description | Official Documentation |
|---|---|---|---|
| Azure API for FHIR | Paid | Managed FHIR data storage and access in Azure cloud | Azure API for FHIR Documentation |
| Google Cloud Healthcare API | Paid | Secure FHIR, HL7v2, DICOM healthcare cloud backend | Google Cloud Healthcare API Documentation |
| AWS HealthLake | Paid | HIPAA-eligible FHIR datastore + analytics with ML | AWS HealthLake Documentation |
| API Name | Classification | Description | Official Documentation |
|---|---|---|---|
| Infermedica API | Freemium | AI-driven symptom checking and triage recommendations | Infermedica API Documentation |
| ApiMedic Symptom API | Freemium | Modular symptom checker for patient triage | ApiMedic Symptom API Documentation |