configcat-client
ConfigCat SDK for Python. https://configcat.com
Decision gist · record as of 2026-08-14
Yes. The package is actively maintained with no known vulnerabilities, uses a permissive MIT license, and carries low install friction. It ranks in the top 5000 PyPI packages by download volume. Install it if you need remote feature flag management or configuration control.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- You must obtain an SDK Key from the ConfigCat Dashboard before the client can connect to the service.
- Low install friction with only two lightweight runtime dependencies (requests and semver).
- The package is actively maintained with a recent release on 2026-03-10.
License · maintenance · safety
MIT (permissive) — MIT license permits unrestricted use, modification, and distribution in both open-source and commercial projects with minimal obligations.
last release 2026-03-10 (157 days) · last repo commit 2026-07-20 · 18 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 1,420,921 downloads/mo, #3,925 on PyPI
Alternatives
Verify before relying
pip install configcat-client
import configcatclient
client = configcatclient.get('#YOUR-SDK-KEY#')
value = client.get_value('setting_key', False)
client.close()- Whether all three documented polling modes are fully supported in version 10.0.0
- Performance characteristics and latency of feature flag lookups under typical load
- Whether user targeting works with all custom attribute types or has limitations
What it is and what it does
ConfigCat SDK for Python is a client library that connects your application to ConfigCat's hosted feature flag and configuration management service. It lets you retrieve feature flag values and configuration settings remotely, enabling you to control feature availability without redeploying code. The SDK supports user targeting, allowing you to serve different flag values to different users based on attributes like region, email, or custom properties.
The package depends on requests for HTTP communication and semver for version handling. It maintains an internal cache of settings and provides multiple polling strategies to keep that cache fresh. You initialize it with an SDK key, query flag values with optional user context, and close it on application shutdown.
Use it for
- Enable or disable new features in production without redeployment or restart.
- Run A/B tests by serving different feature states to different user segments.
- Gradually roll out features to a percentage of users or specific regions.
- Manage configuration values across multiple environments from a central dashboard.
- Implement kill switches to quickly disable problematic features in production.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
The package is actively maintained with no known vulnerabilities, uses a permissive MIT license, and carries low install friction. It ranks in the top 5000 PyPI packages by download volume. Install it if you need remote feature flag management or configuration control.
Install
configcat-client on PyPI
Before you install
Low install friction with only two lightweight runtime dependencies (requests and semver). The package is actively maintained with a recent release on 2026-03-10.
You must obtain an SDK Key from the ConfigCat Dashboard before the client can connect to the service.
License in practice
MIT license permits unrestricted use, modification, and distribution in both open-source and commercial projects with minimal obligations.
Quickstart
pip install configcat-client
import configcatclient
client = configcatclient.get('#YOUR-SDK-KEY#')
value = client.get_value('setting_key', False)
client.close()Verify before relying
- Whether all three documented polling modes are fully supported in version 10.0.0
- Performance characteristics and latency of feature flag lookups under typical load
- Whether user targeting works with all custom attribute types or has limitations
Package facts
| License | MIT permissive |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagesrequestssemver |
| Maintenance | Actively maintained 157 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 1,420,921 / month, #3,925 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Intended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Topic :: Software DevelopmentTopic :: Software Development :: Libraries |
Evidence: configcat_client-10.0.0-py2.py3-none-any.whl
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