Korvex
A fast Python web framework, with a router and an HTTP server written in Rust.
- Simple: a function per route; its parameters say what it reads.
- Typed: parameters and bodies validated with msgspec or pydantic, and described in OpenAPI, with Swagger UI.
- Fast: on one CPU core, it serves more requests than the other Python frameworks tested, with less memory.
- Complete: dependencies, WebSockets, a test client, ready-made middleware, and its own server, with workers and threads.
Korvex is young (alpha): the API can still change before 1.0, each change listed in the changelog with how to update.
pip install korvex
Quickstart
import msgspec # or pydantic: pip install korvex msgspec
from korvex import App, HTTPException
class Task(msgspec.Struct):
id: int
title: str
app = App()
app.docs(title="Tasks") # Swagger UI at /docs
TASKS = {1: Task(1, "Write the docs")}
@app.get("/tasks/{id:int}")
def get_task(id: int) -> Task:
"""Get a task"""
if id not in TASKS:
raise HTTPException(404, "no such task")
return TASKS[id]
if __name__ == "__main__":
app.run() # http://127.0.0.1:8000/tasks/1
And its test:
from korvex.testing import TestClient
def test_get_task():
with TestClient(app) as client:
assert client.get("/tasks/1").json() == {"id": 1, "title": "Write the docs"}
assert client.get("/tasks/2").status == 404
The guide
- Routes: path parameters, groups, hosts, links, static files.
- Requests and responses: what a handler gets and returns.
- Validation: typed parameters, JSON bodies, headers, cookies, forms.
- Dependencies: signing in, database connections, shared checks.
- Errors and hooks: errors, code around every request, startup and shutdown.
- WebSockets
- OpenAPI and security: statuses, tags, documented errors, Bearer and API keys.
- Ready-made middleware: CORS, request IDs, rate limiting, compression.
- Testing
- The built-in server and deployment: nginx, Caddy, Docker, AWS Lambda.
examples/ goes from a few lines to a
complete app laid out like a real project.
Performance
The same app on the same 4 CPU cores, each server with its best number of workers:
- On one core with uvicorn, Korvex serves 33.7k requests/s; Starlette 3.0k to 30.6k, FastAPI 1.6k to 12.4k.
- With validation, a request takes 17.8 µs in Korvex, 76.2 µs in FastAPI.
- On free-threaded Python, one worker with 3 threads serves 57% more than one thread, with a third of the memory of 4 workers.
Performance has every benchmark, and how to run them.
Contributing
uv sync # the tools, and Korvex built from source
uv run pytest
CONTRIBUTING.md has the layout of the code and every check CI runs; ROADMAP.md what's planned. Report a vulnerability privately, as SECURITY.md explains. Everyone taking part follows the code of conduct.
License
1 maintainer
Metadata
1 maintainer
Release files for korvex 0.14.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| korvex-0.14.0.tar.gz | 579.7 kB | With provenance | Details for korvex-0.14.0.tar.gz |
Built distributions (wheels)
Total release size: 14.2 MB
Release files / korvex-0.14.0.tar.gz
| Download URL | korvex-0.14.0.tar.gz |
|---|---|
| Size | 579.7 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
dac17079b7b9e46db10f544bed495151ae9e16062d83e1211f290910ca5fbd7e
|
|
BLAKE2b-256 checksum How to use checksums |
9b3431929f9ec7b57a1da14133e01bf1d190801985fb0e63d23d1543d7fa40be
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / korvex-0.14.0-cp314-cp314t-win_amd64.whl
| Download URL | korvex-0.14.0-cp314-cp314t-win_amd64.whl |
|---|---|
| Size | 842.3 kB |
| Tags | CPython 3.14 CPython 3.14 free-threading Windows x86-64 |
|
SHA-256 checksum How to use checksums |
9c4245286972a1739a6e2f03f1acf2107c6db74ee3947c20301e1ffe96903405
|
|
BLAKE2b-256 checksum How to use checksums |
504b5be6bddf882e5af1babfef63525b05fb27c81115fba6c0e457484f393eac
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / korvex-0.14.0-cp314-cp314t-manylinux2014_x86_64.manylinux_2_17_x86_64.whl
| Download URL | korvex-0.14.0-cp314-cp314t-manylinux2014_x86_64.manylinux_2_17_x86_64.whl |
|---|---|
| Size | 1.6 MB |
| Tags | CPython 3.14 CPython 3.14 free-threading Linux glibc 2.17+ x86-64 |
|
SHA-256 checksum How to use checksums |
c0262e9da9fad71820b22af0812e7751b59aadccb769c79c9072dae2bd451e0b
|
|
BLAKE2b-256 checksum How to use checksums |
4e501538973b1a46e7da1de5d8d1864825741dfb2e7bf3b105d032a5fa68eb7d
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / korvex-0.14.0-cp314-cp314t-manylinux2014_aarch64.manylinux_2_17_aarch64.whl
| Download URL | korvex-0.14.0-cp314-cp314t-manylinux2014_aarch64.manylinux_2_17_aarch64.whl |
|---|---|
| Size | 1.6 MB |
| Tags | CPython 3.14 CPython 3.14 free-threading Linux glibc 2.17+ ARM64 |
|
SHA-256 checksum How to use checksums |
b9e2bd2e92e8bb3d2921d2c6a9d3b3ae3e134c8e07f0d6bf1de75c51e66a6733
|
|
BLAKE2b-256 checksum How to use checksums |
5ab03a51d449fcdb11dea437e52e1ef92e46cf7e75ee2a4b4d8dca8f83576b03
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / korvex-0.14.0-cp314-cp314t-macosx_11_0_arm64.whl
| Download URL | korvex-0.14.0-cp314-cp314t-macosx_11_0_arm64.whl |
|---|---|
| Size | 1.4 MB |
| Tags | CPython 3.14 CPython 3.14 free-threading macOS 11.0+ ARM64 |
|
SHA-256 checksum How to use checksums |
64293b1a82b679478ea764412ae7035670b31539d6c56fb744dddb78ea0b61de
|
|
BLAKE2b-256 checksum How to use checksums |
4ff56c85cd731ab7bba70650647933e61ebea208ddf6c1d6bbe176368d50071c
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / korvex-0.14.0-cp314-cp314t-macosx_10_12_x86_64.whl
| Download URL | korvex-0.14.0-cp314-cp314t-macosx_10_12_x86_64.whl |
|---|---|
| Size | 1.4 MB |
| Tags | CPython 3.14 CPython 3.14 free-threading macOS 10.12+ x86-64 |
|
SHA-256 checksum How to use checksums |
956379df283d584755113dab3abf8f25c4c01863b3901b38100bb0b08c94684e
|
|
BLAKE2b-256 checksum How to use checksums |
91108c5fc222b6762103afdd3cd539087f421ee7915fea16c3645541383d6753
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / korvex-0.14.0-cp39-abi3-win_amd64.whl
| Download URL | korvex-0.14.0-cp39-abi3-win_amd64.whl |
|---|---|
| Size | 851.7 kB |
| Tags | CPython 3.9 Windows x86-64 abi3 |
|
SHA-256 checksum How to use checksums |
14bab55152cc07f4326660f8102d0b3176065e6f75989652385b7b1b857e79ed
|
|
BLAKE2b-256 checksum How to use checksums |
5ffa53ddf9d74351f6cb4b395db2176b548520bd97fa4e900904c67010dc5753
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / korvex-0.14.0-cp39-abi3-manylinux2014_x86_64.manylinux_2_17_x86_64.whl
| Download URL | korvex-0.14.0-cp39-abi3-manylinux2014_x86_64.manylinux_2_17_x86_64.whl |
|---|---|
| Size | 1.6 MB |
| Tags | CPython 3.9 Linux glibc 2.17+ x86-64 abi3 |
|
SHA-256 checksum How to use checksums |
a7187dcf263f43069f403e93cccae4f9775738f35c05588f476c86cba6cc8df2
|
|
BLAKE2b-256 checksum How to use checksums |
84e8c206f9220bbd1f7dc48bcb9ac5bd34fc750808bc5dd616881ca029dea574
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / korvex-0.14.0-cp39-abi3-manylinux2014_aarch64.manylinux_2_17_aarch64.whl
| Download URL | korvex-0.14.0-cp39-abi3-manylinux2014_aarch64.manylinux_2_17_aarch64.whl |
|---|---|
| Size | 1.6 MB |
| Tags | CPython 3.9 Linux glibc 2.17+ ARM64 abi3 |
|
SHA-256 checksum How to use checksums |
942a35be8e3e6283c823238972fc918a4986230b72de6b9bb748cdab5165f801
|
|
BLAKE2b-256 checksum How to use checksums |
6c4124ad7cc4ce183c65c85bf5a37aa19432c9c713651ff7f9e9a73ee9dc548d
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / korvex-0.14.0-cp39-abi3-macosx_11_0_arm64.whl
| Download URL | korvex-0.14.0-cp39-abi3-macosx_11_0_arm64.whl |
|---|---|
| Size | 1.4 MB |
| Tags | CPython 3.9 abi3 macOS 11.0+ ARM64 |
|
SHA-256 checksum How to use checksums |
51cf8685fe6ade2284b28566349af81e57b6736e4ac843f64c9bc2588f94ccf5
|
|
BLAKE2b-256 checksum How to use checksums |
b9e5d9104828698f9a3d7d876d82a5a273618539a88a86657808cc42d6b94f9a
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logRelease files / korvex-0.14.0-cp39-abi3-macosx_10_12_x86_64.whl
| Download URL | korvex-0.14.0-cp39-abi3-macosx_10_12_x86_64.whl |
|---|---|
| Size | 1.4 MB |
| Tags | CPython 3.9 abi3 macOS 10.12+ x86-64 |
|
SHA-256 checksum How to use checksums |
9e40982f378745b2e56d139946cdf8e3d34f1943bfdec45cbeb7dec0b9777cf7
|
|
BLAKE2b-256 checksum How to use checksums |
69a2a794a75278778506806e9d3f39db72302996ec206eb17ff83631692990b9
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/7.0.0 CPython/3.13.16
|
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logSecurity for korvex 0.14.0
Provenance
Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.
Full provenance
All 11 files in this release have been uploaded with provenance metadata.
Attestation for korvex-0.14.0.tar.gz
PyPI Publish Attestation
PyPI verified that this artifact, at this checksum, originated from the publisher listed below.
Signed by GitHub Actions, verified by PyPI on Nov 6, 2026.
Transparency logA note on package security
PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.
To learn more about protecting yourself from malicious actors, visit our package security documentation.
