Flask + marshmallow for beautiful APIs
Flask-Marshmallow is a thin integration layer for Flask (a Python web framework) and marshmallow (an object serialization/deserialization library) that adds additional features to marshmallow, including URL and Hyperlinks fields for HATEOAS-ready APIs. It also (optionally) integrates with Flask-SQLAlchemy.
Get it now
pip install flask-marshmallow
Create your app.
from flask import Flask
from flask_marshmallow import Marshmallow
app = Flask(__name__)
ma = Marshmallow(app)Write your models.
from your_orm import Model, Column, Integer, String, DateTime
class User(Model):
email = Column(String)
password = Column(String)
date_created = Column(DateTime, auto_now_add=True)Define your output format with marshmallow.
class UserSchema(ma.Schema):
email = ma.Email()
date_created = ma.DateTime()
# Smart hyperlinking
_links = ma.Hyperlinks(
{
"self": ma.URLFor("user_detail", values=dict(id="<id>")),
"collection": ma.URLFor("users"),
}
)
user_schema = UserSchema()
users_schema = UserSchema(many=True)Output the data in your views.
@app.route("/api/users/")
def users():
all_users = User.all()
return users_schema.dump(all_users)
@app.route("/api/users/<id>")
def user_detail(id):
user = User.get(id)
return user_schema.dump(user)
# {
# "email": "fred@queen.com",
# "date_created": "Fri, 25 Apr 2014 06:02:56 -0000",
# "_links": {
# "self": "/api/users/42",
# "collection": "/api/users/"
# }
# }http://flask-marshmallow.readthedocs.io/
Learn More
To learn more about marshmallow, check out its docs.
Project Links
License
MIT licensed. See the bundled LICENSE file for more details.
Release files for flask-marshmallow 1.5.0
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 |
|---|---|---|---|---|
| flask_marshmallow-1.5.0.tar.gz | 41.2 kB | With provenance | Details for flask_marshmallow-1.5.0.tar.gz |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| flask_marshmallow-1.5.0-py3-none-any.whl | Python 3 | none | any | Details for flask_marshmallow-1.5.0-py3-none-any.whl |
Total release size: 53.3 kB
Release files / flask_marshmallow-1.5.0.tar.gz
| Download URL | flask_marshmallow-1.5.0.tar.gz |
|---|---|
| Size | 41.2 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
7c06b56e41647eccdb3cd57c25b109f19191b4c62509362bd64920cdf601a066
|
|
BLAKE2b-256 checksum How to use checksums |
65ca22f00dffdd6709332247960e0c1223995bc22ff7537834bffc44ab9ab90b
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.13
|
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 Apr 16, 2026.
Transparency logRelease files / flask_marshmallow-1.5.0-py3-none-any.whl
| Download URL | flask_marshmallow-1.5.0-py3-none-any.whl |
|---|---|
| Size | 12.2 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
99951c77e5654111ed733811c6dc9310bfb4c3688c78a9e76f80b5ae0b2279a6
|
|
BLAKE2b-256 checksum How to use checksums |
d7ef953c6395966388ab37cfb77493c441372201406a260d722e2fefdff134fb
|
| Upload date | |
|
Uploaded using Trusted Publishing? What is trusted publishing? |
Yes |
| Uploaded via |
twine/6.1.0 CPython/3.13.13
|
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 Apr 16, 2026.
Transparency logSecurity for flask-marshmallow 1.5.0
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 2 files in this release have been uploaded with provenance metadata.
Attestation for flask_marshmallow-1.5.0.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 Apr 16, 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.
