launchdarkly-openfeature-server
An OpenFeature provider for the LaunchDarkly Python server SDK
Decision gist · record as of 2026-08-14
Yes, with conditions. Install if you are already using LaunchDarkly and want to adopt the OpenFeature standard, or if you want vendor-neutral feature flag abstraction. Avoid if you need a stable API—this is beta software and breaking changes are expected. No known security vulnerabilities as of August 2026.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.9 or above.
- Requires a valid LaunchDarkly SDK key.
- Low friction install with only two runtime dependencies.
License · maintenance · safety
Apache-2.0 (permissive) — Apache-2.0 permissive license allows commercial and private use with minimal restrictions, typical for open-source SDKs.
last release 2025-11-04 (283 days) · last repo commit 2026-07-01 · 4 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 146,160 downloads/mo, #11,104 on PyPI
Alternatives
Verify before relying
pip install launchdarkly-openfeature-server
from openfeature import api
provider = LaunchDarklyProvider(Config("sdk-key"))
api.set_provider(provider)- Performance characteristics and latency impact when evaluating large numbers of contexts
- Backward compatibility guarantees during beta phase and expected timeline to stable release
- Whether the provider handles network failures and offline scenarios gracefully
What it is and what it does
This package is an OpenFeature provider that adapts LaunchDarkly's server-side Python SDK to work with the OpenFeature standardized API. It allows developers to integrate LaunchDarkly feature flags into applications using the OpenFeature abstraction layer, which provides a vendor-neutral interface for feature flag evaluation.
The provider is designed for multi-user server systems like web applications and handles both single-context and multi-context evaluations. It maps OpenFeature's EvaluationContext to LaunchDarkly's context model, supporting special attributes like targeting keys, private attributes, and anonymous flags. The package depends on launchdarkly-server-sdk and openfeature-sdk, and is currently in beta, meaning its API may change.
Use it for
- Integrate LaunchDarkly feature flags into a web application using the OpenFeature standard API
- Evaluate feature flags for multi-user contexts (e.g., user + organization) in a server environment
- Gradually roll out features to subsets of users based on context attributes and targeting rules
- Switch feature flag providers later by replacing the provider while keeping OpenFeature client code unchanged
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, with conditions.
Install if you are already using LaunchDarkly and want to adopt the OpenFeature standard, or if you want vendor-neutral feature flag abstraction. Avoid if you need a stable API—this is beta software and breaking changes are expected. No known security vulnerabilities as of August 2026.
Install
launchdarkly-openfeature-server on PyPI
Before you install
Low friction install with only two runtime dependencies. Actively maintained as of 2026-07-01 with recent releases. Beta status means the API is not yet stabilized and may introduce breaking changes.
Requires Python 3.9 or above. Requires a valid LaunchDarkly SDK key.
License in practice
Apache-2.0 permissive license allows commercial and private use with minimal restrictions, typical for open-source SDKs.
Quickstart
pip install launchdarkly-openfeature-server
from openfeature import api
provider = LaunchDarklyProvider(Config("sdk-key"))
api.set_provider(provider)Verify before relying
- Performance characteristics and latency impact when evaluating large numbers of contexts
- Backward compatibility guarantees during beta phase and expected timeline to stable release
- Whether the provider handles network failures and offline scenarios gracefully
Package facts
| License | Apache-2.0 permissive |
| Python support | Supports the current Python release <4.0,>=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packageslaunchdarkly-server-sdkopenfeature-sdk |
| Maintenance | Actively maintained 283 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 146,160 / month, #11,104 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 :: Apache Software 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 :: 3.9Topic :: Software DevelopmentTopic :: Software Development :: Libraries |
Evidence: launchdarkly_openfeature_server-0.5.1-py3-none-any.whl
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See also launchdarkly-server-sdk · openfeature-provider-flagsmith · launchdarkly-api · openfeature-sdk · openfeature-provider-unleash · devcycle-python-server-sdk · openfeature-provider-ofrep · openfeature-provider-flagd · openfeature-flagd-api · openfeature-hooks-opentelemetry