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A minimal, extensible, fast and productive framework for building HTTP APIs with Python 3.6 and later.
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benchmarks chore(build): drop poetry Jan 15, 2019
examples fix(build): linting errors Jan 15, 2019
molten chore: bump version 0.7.3 → 0.7.4 Feb 3, 2019
.bumpversion.cfg chore: bump version 0.7.3 → 0.7.4 Feb 3, 2019
.gitignore chore(build): ignore build folder Feb 3, 2019
.travis.yml chore(build): drop poetry Jan 15, 2019 fix(validation): accept null for optional union types. Jan 26, 2019
COPYING.LESSER docs: replace liberapay w/ patreon Feb 28, 2019
setup.cfg fix(build): allow *-imports Feb 2, 2019


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A minimal, extensible, fast and productive API framework for Python 3.

Support Molten via Patreon
Professional Support


pip install molten

Supporting the Project

If you use and love Molten and want to make sure it gets the love and attention it deserves then you should consider supporting the project. There are three ways in which you can do this right now:

  1. If you're a company that uses Molten in production then you can get a Tidelift subscription. Doing so will give you an easy route to supporting both Molten and other open source projects that you depend on.
  2. If you're an individual or a company that doesn't want to go through Tidelift then you can support the project via Patreon.
  3. If you're a company and neither option works for you and you would like to receive an invoice from me directly then email me at and let's talk.


Check out the examples folder to get a taste of the framework or read the user guide!


molten is licensed under the LGPL. Please see COPYING and COPYING.LESSER for licensing details.

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