You can combine any frontend with any backend, because they all adhere to the same API spec
While most "todo" demos provide an excellent cursory glance at a framework's capabilities, they typically don't convey the knowledge required to actually build real applications with it — nor the real-world constraints a minimal demo never has to face.
RealWorld solves this problem by providing the same demo app for each framework, at a sweet spot between simplicity and breadth.
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Over 100 implementations have been created using various languages, libraries, and frameworks.
Explore them on CodebaseShow.
These backends pass the full API spec test suite:
Create a new implementation >>>
Or you can view upcoming implementations (WIPs).
See LICENSES_LOGOS.md for framework logo licensing and attribution details.
$ claude mcp add realworld \
-- python -m otcore.mcp_server <graph>