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Graph Module

From Version 0.4 of the Block Protocol onwards, the Graph Module is now replaced by the SemType specification.

For the historical Graph Module specification, see version 0.3 of the spec.

Add blocks to your app

Anyone with an existing application who wants to embed semantically-rich, reusable blocks in their product can use the protocol. Improve your app’s utility and tap into a world of structured data with no extra effort, for free.

Learn more

Build your own blocks

Any developer can build and publish blocks to the Hub for others to use. Contribute to an open-source community building a more interoperable future web.

Read the quickstart guide