mlserver-mlflow
MLflow runtime for MLServer
Decision gist · record as of 2026-08-14
Yes, if you are already using MLServer and need to serve MLflow models. The low install friction and permissive license make it a straightforward addition. However, the aging maintenance status (434 days since release) means you should verify that the package's feature set matches your MLflow and MLServer versions before committing to production use.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires mlserver and mlflow to be installed; Python 3.9–3.12 only (capped below Python 3.13).
- Low install friction with a pure Python wheel.
- Maintenance status is aging—last release was 434 days ago—so expect slower response to issues, though the package remains functional for its narrow purpose.
License · maintenance · safety
Apache-2.0 (permissive) — Apache-2.0 permissive license allows commercial and private use with minimal restrictions; suitable for most projects that can comply with attribution and derivative-work disclosure.
last release 2025-06-06 (434 days)
0 known vulnerabilities (OSV.dev, 2026-08-14) · 80,309 downloads/mo, #14,299 on PyPI
Alternatives
Verify before relying
pip install mlserver mlserver-mlflow
from mlserver import MLServer
from mlserver_mlflow import MLflowRuntime
# MLServer will auto-load MLflow models when configured with this runtime- Whether the dict content type stacking with other content types (e.g., np) is production-ready or still experimental.
- Current state of the upstream repository and whether maintenance is expected to resume.
What it is and what it does
mlserver-mlflow is a specialized runtime adapter that bridges MLflow and MLServer, allowing MLflow-serialized models to be served as REST/gRPC inference endpoints. It extends MLServer's runtime system with MLflow-specific model loading and inference logic, and introduces a dict content type for handling MLflow's native dictionary-of-tensors input format.
The package is narrow in scope: it does not train models or manage MLflow tracking—it only handles model serving. It is most useful in deployment pipelines where MLflow is the model registry and MLServer is the inference platform. The aging maintenance status (434 days since last release) suggests the package is stable but not actively developed; it will work for its intended use but may lag behind new MLflow or MLServer features.
Use it for
- Serve MLflow-registered models as production REST endpoints without writing custom inference code.
- Integrate MLflow model artifacts into a MLServer-based inference platform for multi-model serving.
- Deploy dictionary-of-tensors models from MLflow that require the dict content type for correct deserialization.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are already using MLServer and need to serve MLflow models.
The low install friction and permissive license make it a straightforward addition. However, the aging maintenance status (434 days since release) means you should verify that the package's feature set matches your MLflow and MLServer versions before committing to production use.
Install
mlserver-mlflow on PyPI
Before you install
Low install friction with a pure Python wheel. Maintenance status is aging—last release was 434 days ago—so expect slower response to issues, though the package remains functional for its narrow purpose.
Requires mlserver and mlflow to be installed; Python 3.9–3.12 only (capped below Python 3.13).
License in practice
Apache-2.0 permissive license allows commercial and private use with minimal restrictions; suitable for most projects that can comply with attribution and derivative-work disclosure.
Quickstart
pip install mlserver mlserver-mlflow
from mlserver import MLServer
from mlserver_mlflow import MLflowRuntime
# MLServer will auto-load MLflow models when configured with this runtimeVerify before relying
- Whether the dict content type stacking with other content types (e.g., np) is production-ready or still experimental.
- Current state of the upstream repository and whether maintenance is expected to resume.
Package facts
| License | Apache-2.0 permissive |
| Python support | Capped below the current Python release <3.13,>=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagesmlservermlflow |
| Maintenance | Aging 434 days since the last release |
| First released | |
| Downloads | 80,309 / month, #14,299 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | License :: OSI Approved :: Apache Software LicenseProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.9 |
Evidence: mlserver_mlflow-1.7.1-py3-none-any.whl
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See also mlserver · mlflow · mlflow-skinny · sagemaker-serve · tensorflow-serving-api · azureml-mlflow · litserve · sagemaker-mlflow · azureml-inference-server-http · mlflow-tracing