The Cross References Data Project

Building Open Biblical Infrastructure

This study tool is powered by an open dataset of biblical cross-references. Our goal isn't to compete with existing Bible apps—it's to create infrastructure that any developer can use.

The best cross-reference data should be a public resource, freely available to everyone building tools for studying Scripture.

Learn More

→ For Developers

API documentation, GitHub repositories, integration guides, and licensing information. We want you to use this data in your applications.

→ For Contributors

Help improve cross-references for the global church. Whether you're a theologian, translator, or careful Bible student, there's a way to help.

→ Roadmap

See where we are and where we're going—from the initial TSK import to multi-language support.

→ Vision & Mission

Why we're doing this, how we think about quality, and what success looks like over the next 200 years.

The Core Idea

Most Bible study tools use the Treasury of Scripture Knowledge (TSK) reference system which was compiled in the 1800s and is locked to the King James Version. It's excellent, but has limitations:

  • Tied to KJV translation choices
  • Difficult to adapt to other languages
  • Not all references are equally strong
  • Lacks categorization

We're building on the TSK foundation while addressing these limitations. Our data is translation-agnostic—structured so it can be mapped to any Bible translation in any language.

When we improve the data for English, it automatically improves for French and future languages. When one developer strengthens a connection, every app using our data benefits.

This is infrastructure. We want it used everywhere.