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Factom Interoperability Specifications
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Factom Interoperability Specifications (FIS) ⚙️

This is the central location for collaboration on data and interoperability specifications for parties working with and implementing on top of the Factom ® Protocol. The intention is not to force people to implement solutions. Instead, it is to formalise specifications that implementors can adhere to when building on the Factom ® Protocol in order to encourage ecosystem interoperability.

How Does FIS Work?

See FIS-X, the initial standard that defines the FIS process.

What is the relationship to the Factom Improvment Proposals (FIP)?

FIPs govern proposed changes and improvements for the Factom ® Protocol, APIs, core software and native language drivers. FIS, however, governs proposals, changes and improvements to 2nd layer specifications that software and data on top of the Factom ® Protocol can use.

FIS List

Work In Progress

FIS Name Category


FIS Name Category
X Standard, Contributions, and Process Guidelines for Factom ® Protocol 2nd layer data and solutions Meta

Last Call

FIS Name Category


FIS Name Category


FIS Name Category


FIS-X is the initial standard that describes the core framework, conventions and guidelines for creating a FIS submission. Create your submission in a markdown file following the guidelines defined in FIS-X and the FIS Template

To submit your specification, fork this repo and then submit a pull request to have it reviewed and included for evaluation by the community.


Our current list of editors and curators:


This organizational structure and workflow is inspired by the Factom Asset Token protocol and Ethereum Improvement Protocol


Copyright and related rights waived via CC0.

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