httpx2-k8s

A small, strictly typed Kubernetes client for Python, built on HTTPX2.

It gives you synchronous and asynchronous clients, Pydantic models, and the familiar Kubernetes API groups—without generating a class for every operation.

Installation

pip install httpx2-k8s

Python 3.11 and newer are supported.

Quick start

Use your current kubeconfig context:

from httpx2_k8s import KubeClient

with KubeClient.from_kubeconfig() as client:
    namespaces = client.core_v1.list_namespace()
    print(namespaces.items)

Or use the credentials mounted inside a Pod:

from httpx2_k8s import KubeClient

with KubeClient.from_in_cluster() as client:
    pods = client.core_v1.list_namespaced_pod("default")

There is also a native asynchronous client with the same API:

from httpx2_k8s import AsyncKubeClient

async with AsyncKubeClient.from_kubeconfig() as client:
    namespaces = await client.core_v1.list_namespace()

What you get

• Strict Pydantic models and precise return types
• Synchronous and asynchronous APIs
• Kubeconfig, in-cluster, token, certificate, and exec-plugin authentication
• Core v1 and common stable API groups, including Apps, Batch, Networking, RBAC, Autoscaling, Policy, Storage, and AdmissionRegistration
• Typed custom resources, plus an Unstructured escape hatch
• Pagination, watches, retries, patching, and server-side apply
• Pod logs, exec, attach, proxy, and port forwarding
• HTTP/2 for regular requests and Kubernetes-compatible WebSocket transports

The API follows Kubernetes group versions:

client.core_v1
client.apps_v1
client.autoscaling_v1
client.autoscaling_v2

Documentation

• Getting started
• Core v1 resources
• Custom resources
• Errors, retries, and watches

Development

uv sync
uv run pytest -m "not integration"
uv run pyrefly check
uv run ruff check .

The integration suite starts a real K3s control plane with Testcontainers:

TESTCONTAINERS_RYUK_DISABLED=true RUN_K3S=1 uv run pytest

License

httpx2-k8s is released under the BSD 3-Clause license.