marshmallow
Python object serialization and deserialization, lightweight and fluffy
A pluggable API specification generator. Currently supports the OpenAPI 2.0 specification (f.k.a. Swagger 2.0).
JSON API 1.0 (http://jsonapi.org/) formatting with marshmallow
A lightweight library for converting complex objects to and from simple Python datatypes.
SQLAlchemy integration with marshmallow
Flask + marshmallow for beautiful APIs
Use 3rd-party validators (e.g. from WTForms and colander) with marshmallow