fhirclient
A flexible client for FHIR servers supporting the SMART on FHIR protocol
Decision gist · record as of 2026-08-14
Yes. The library is actively maintained, has no known vulnerabilities, installs with minimal friction, and is the standard choice for FHIR + SMART integration in Python. Use it if you need to connect to FHIR servers or work with FHIR data models in Python.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.10 or later.
- Low friction: pure Python wheel with only requests as a runtime dependency.
- Actively maintained with recent commits and stable production status.
License · maintenance · safety
permissive license (permissive) — Permissive license allows use in both open-source and proprietary projects without significant restrictions.
last release 2026-02-10 (185 days) · last repo commit 2026-04-13 · 694 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 330,970 downloads/mo, #7,523 on PyPI
Alternatives
Verify before relying
pip install fhirclient
from fhirclient import client
from fhirclient.models.patient import Patient
settings = {'app_id': 'my_app', 'api_base': 'https://r4.smarthealthit.org'}
smart = client.FHIRClient(settings=settings)
patient = Patient.read('patient-id', smart.server)
print(patient.birthDate.isostring)- Whether the library handles FHIR versions beyond R4 (4.0.1) in current releases.
- Performance characteristics when querying large result sets or performing bulk operations.
- Specific OAuth flow support details and limitations for different SMART server implementations.
What it is and what it does
fhirclient is a Python library that connects your code to FHIR (Fast Healthcare Interoperability Resources) servers—the standard format for electronic health records. It handles both the network communication and the data model, so you can read patient records, search for encounters or procedures, and work with healthcare data in a Pythonic way. The library supports SMART on FHIR, which means it can manage OAuth login flows for protected servers, and it includes pre-built classes for common FHIR resources like Patient, Encounter, and Procedure.
You use it by creating a FHIRClient with your server URL, then calling methods on resource classes to fetch or search for data. The library validates data structure as you build or deserialize FHIR objects, catching schema errors early. It's actively maintained, requires only requests as a dependency, and supports current Python versions.
Use it for
- Fetch a patient's demographics and medical history from a SMART-enabled EHR for display in a web or mobile app.
- Search for all encounters or procedures for a patient within a given date range and process the results.
- Build a Flask or Django app that logs users in via SMART OAuth and displays their own health data.
- Validate and serialize FHIR data objects when building healthcare integrations or data pipelines.
- Query a public FHIR sandbox server for research or testing without authentication setup.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
The library is actively maintained, has no known vulnerabilities, installs with minimal friction, and is the standard choice for FHIR + SMART integration in Python. Use it if you need to connect to FHIR servers or work with FHIR data models in Python.
Install
fhirclient on PyPI
Before you install
Low friction: pure Python wheel with only requests as a runtime dependency. Actively maintained with recent commits and stable production status.
Requires Python 3.10 or later.
License in practice
Permissive license allows use in both open-source and proprietary projects without significant restrictions.
Quickstart
pip install fhirclient
from fhirclient import client
from fhirclient.models.patient import Patient
settings = {'app_id': 'my_app', 'api_base': 'https://r4.smarthealthit.org'}
smart = client.FHIRClient(settings=settings)
patient = Patient.read('patient-id', smart.server)
print(patient.birthDate.isostring)Verify before relying
- Whether the library handles FHIR versions beyond R4 (4.0.1) in current releases.
- Performance characteristics when querying large result sets or performing bulk operations.
- Specific OAuth flow support details and limitations for different SMART server implementations.
Package facts
| License | permissive license permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 1 packagerequests |
| Maintenance | Actively maintained 185 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 330,970 / month, #7,523 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableIntended Audience :: DevelopersLicense :: OSI Approved :: Apache Software LicenseNatural Language :: EnglishOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 3Topic :: Software Development :: Libraries :: Python Modules |
Evidence: fhirclient-4.4.0-py3-none-any.whl
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See also fhir.resources · fhirpy · fhir-core · carelytics · oauth2-client · requests-oauth2client · oauth2client · Flask-OAuthlib · Authlib · oauth2