aiohttp-swagger3
validation for aiohttp swagger openAPI 3
Decision gist · record as of 2026-08-14
Yes, if you are building aiohttp applications and want to integrate OpenAPI 3 documentation and request validation. The package is low-friction to install, permissively licensed, and supports current Python versions. However, note that maintenance is dormant—the last release was 549 days ago—so if you need active support or expect frequent updates to aiohttp or Python, verify compatibility before committing. No known security vulnerabilities.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python >= 3.9 and aiohttp >= 3.8.0.
- Low install friction with a pure-Python wheel.
- Maintenance is dormant—last release was 549 days ago, though the repository remains active with a recent commit on 2025-02-11.
License · maintenance · safety
Apache 2 (permissive) — Licensed under Apache 2, a permissive license that allows commercial and private use with minimal restrictions, making it suitable for most projects.
last release 2025-02-11 (549 days) · last repo commit 2025-02-11 · 61 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 101,801 downloads/mo, #12,915 on PyPI
Alternatives
Verify before relying
pip install aiohttp-swagger3
from aiohttp import web
from aiohttp_swagger3 import SwaggerDocs, SwaggerInfo
app = web.Application()
swagger = SwaggerDocs(app, info=SwaggerInfo(title="API", version="1.0.0"))
swagger.add_routes([web.get("/pets/{pet_id}", handler)])
web.run_app(app)- Whether validation performance is acceptable for high-throughput APIs.
- Current state of support for multipart/form-data or other content types beyond application/json and application/x-www-form-urlencoded.
- Whether dormant maintenance status affects long-term compatibility with future aiohttp releases.
What it is and what it does
aiohttp-swagger3 is a middleware layer for aiohttp applications that reads OpenAPI 3 specifications and automatically validates incoming HTTP requests against them. It can display interactive API documentation via Swagger UI, ReDoc, or RapiDoc, and optionally parse and validate request bodies, query parameters, headers, and path parameters according to the spec. Validation is enabled by default but can be disabled globally or per-route.
The package handles JSON and form-encoded request bodies, supports common JSON Schema constraints (required fields, enums, string formats like email and UUID, array/object validation), and integrates documentation generation into your aiohttp app startup. It requires five runtime dependencies—aiohttp, pyyaml, attrs, fastjsonschema, and rfc3339-validator—all of which are mature and commonly used.
Use it for
- Serve interactive API documentation alongside a running aiohttp service without writing separate docs.
- Automatically validate incoming requests against an OpenAPI spec to catch malformed input early.
- Enforce request schema compliance (required fields, type checking, format validation) without manual parsing code.
- Provide multiple documentation UI options (Swagger UI, ReDoc, RapiDoc) to different teams or use cases.
- Disable validation selectively on specific routes when spec-driven validation is not needed.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you are building aiohttp applications and want to integrate OpenAPI 3 documentation and request validation.
The package is low-friction to install, permissively licensed, and supports current Python versions. However, note that maintenance is dormant—the last release was 549 days ago—so if you need active support or expect frequent updates to aiohttp or Python, verify compatibility before committing. No known security vulnerabilities.
Install
aiohttp-swagger3 on PyPI
Before you install
Low install friction with a pure-Python wheel. Maintenance is dormant—last release was 549 days ago, though the repository remains active with a recent commit on 2025-02-11. The package supports current Python versions (3.9–3.13) and depends on stable, widely-used libraries.
Requires Python >= 3.9 and aiohttp >= 3.8.0.
License in practice
Licensed under Apache 2, a permissive license that allows commercial and private use with minimal restrictions, making it suitable for most projects.
Quickstart
pip install aiohttp-swagger3
from aiohttp import web
from aiohttp_swagger3 import SwaggerDocs, SwaggerInfo
app = web.Application()
swagger = SwaggerDocs(app, info=SwaggerInfo(title="API", version="1.0.0"))
swagger.add_routes([web.get("/pets/{pet_id}", handler)])
web.run_app(app)Verify before relying
- Whether validation performance is acceptable for high-throughput APIs.
- Current state of support for multipart/form-data or other content types beyond application/json and application/x-www-form-urlencoded.
- Whether dormant maintenance status affects long-term compatibility with future aiohttp releases.
Package facts
| License | Apache 2 permissive |
| Python support | Supports the current Python release >=3.9 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 5 packagesaiohttppyyamlattrsfastjsonschemarfc3339-validator |
| Maintenance | Dormant 549 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 101,801 / month, #12,915 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaFramework :: AsyncIOIntended Audience :: DevelopersLicense :: OSI Approved :: Apache Software LicenseOperating System :: MacOS :: MacOS XOperating System :: POSIXProgramming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.10Programming Language :: Python :: 3.11Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.9Topic :: Internet :: WWW/HTTP |
Evidence: aiohttp_swagger3-0.10.0-py3-none-any.whl
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See also flask-openapi3-swagger · aiohttp-swagger · flask-openapi3-rapidoc · connexion · flask-openapi3 · sanic-ext · flask-openapi3-scalar · swagger-ui-py · flask-openapi3-elements · sphinxcontrib-redoc