---
id: openapi-schema-validator
version: "0.9.0"
license: BSD-3-Clause
license_treatment: permissive
maintenance: active
---

# openapi-schema-validator — OpenAPI schema validation for Python

License: permissive · Maintenance: active · Popularity: top 1,000 on PyPI

## Install

pip install openapi-schema-validator
uv add openapi-schema-validator
poetry add openapi-schema-validator

## Description

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openapi-schema-validator
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.. image:: https://img.shields.io/pypi/v/openapi-schema-validator.svg
     :target: https://pypi.org/project/openapi-schema-validator/
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     :target: https://github.com/python-openapi/openapi-schema-validator/actions
.. image:: https://img.shields.io/codecov/c/github/python-openapi/openapi-schema-validator/master.svg?style=flat
     :target: https://codecov.io/github/python-openapi/openapi-schema-validator?branch=master
.. image:: https://img.shields.io/pypi/pyversions/openapi-schema-validator.svg
     :target: https://pypi.org/project/openapi-schema-validator/
.. image:: https://img.shields.io/pypi/format/openapi-schema-validator.svg
     :target: https://pypi.org/project/openapi-schema-validator/
.. image:: https://img.shields.io/pypi/status/openapi-schema-validator.svg
     :target: https://pypi.org/project/openapi-schema-validator/

About
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openapi-schema-validator is a Python library that validates schemas against:

* `OpenAPI Schema Specification v3.0...

## AI interpretation — verify before relying

Validates data against OpenAPI schema specifications (3.0, 3.1, and 3.2) using jsonschema under the hood, with support for multiple validator classes and configurable reference resolution.

Verdict: A well-maintained, low-friction validator for OpenAPI schemas across all three major versions. No known vulnerabilities, permissive licensing, and active development make it a solid choice for API contract testing and validation workflows.

[View on SkillFed](https://skillfed.io/packages/openapi-schema-validator) · [View on PyPI](https://pypi.org/project/openapi-schema-validator/)