zeep
A Python SOAP client
Decision gist · record as of 2026-08-14
Yes. Zeep is the standard Python SOAP client for production use: stable, actively maintained, low install friction, no known vulnerabilities, and MIT-licensed. Install it if you need to consume SOAP web services; avoid it only if your target services have moved to REST or gRPC.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- lxml requires libxml2 and libxslt system libraries; see lxml installation requirements.
- Low install friction with a pure-wheel distribution.
- Actively maintained as of June 2026 with 2007 repository stars.
License · maintenance · safety
MIT (permissive) — MIT license (permissive) places no restrictions on use, modification, or distribution in proprietary or open-source projects.
last release 2026-06-18 (57 days) · last repo commit 2026-06-18 · 2,007 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 42,981,579 downloads/mo, #651 on PyPI
Alternatives
Verify before relying
pip install zeep
from zeep import Client
client = Client('path/to/wsdl')
result = client.service.method_name()- Whether httpx is an optional or required dependency for asyncio support (not listed in runtime deps).
- Performance characteristics and limits for large SOAP payloads or high-concurrency scenarios.
- Completeness of XOP message support (described as experimental).
What it is and what it does
Zeep is a mature SOAP client library for Python that consumes WSDL files and translates them into callable Python objects. It handles the XML marshalling, SOAP envelope construction, and HTTP transport automatically, supporting both synchronous and asynchronous workflows. The library builds on lxml for XML parsing and requests for HTTP, providing a straightforward interface to call remote SOAP services.
Typical use involves instantiating a Client with a WSDL URL or file path, then calling methods on the client.service object as if they were local functions. Zeep handles authentication schemes like WSSE (username/token or x.509 signing), WS-Addressing headers, and both SOAP 1.1 and 1.2 protocols. It supports Python 3.10 through 3.14 and PyPy3, and is designed for production use despite being stable and not actively extended.
Use it for
- Integrate with legacy enterprise web services that expose SOAP interfaces.
- Automate calls to third-party SOAP APIs (e.g., payment gateways, ERP systems).
- Build async SOAP clients for high-concurrency scenarios using httpx.
- Parse and validate WSDL contracts to generate type-safe service stubs.
- Implement WSSE-secured SOAP communication with x.509 certificates or username tokens.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
Zeep is the standard Python SOAP client for production use: stable, actively maintained, low install friction, no known vulnerabilities, and MIT-licensed. Install it if you need to consume SOAP web services; avoid it only if your target services have moved to REST or gRPC.
Install
zeep on PyPI
Before you install
Low install friction with a pure-wheel distribution. Actively maintained as of June 2026 with 2007 repository stars. The maintainer notes the library is stable and not heavily updated since SOAP itself is mature, but welcomes bug-fix PRs.
lxml requires libxml2 and libxslt system libraries; see lxml installation requirements.
License in practice
MIT license (permissive) places no restrictions on use, modification, or distribution in proprietary or open-source projects.
Quickstart
pip install zeep
from zeep import Client
client = Client('path/to/wsdl')
result = client.service.method_name()Verify before relying
- Whether httpx is an optional or required dependency for asyncio support (not listed in runtime deps).
- Performance characteristics and limits for large SOAP payloads or high-concurrency scenarios.
- Completeness of XOP message support (described as experimental).
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.10 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 7 packagesattrsisodatelxmlplatformdirsrequestsrequests-toolbeltrequests-file |
| Maintenance | Actively maintained 57 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 42,981,579 / month, #651 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 5 - Production/StableLicense :: OSI Approved :: MIT LicenseProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Programming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPy |
Evidence: zeep-4.3.3-py3-none-any.whl
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