Public APIs
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Joshua Project

Open Data

People groups of the world with the fewest followers of Christ.

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About Joshua Project

The Joshua Project API provides programmatic access to data on ethnic people groups, countries, and languages worldwide, including information on their populations and the presence of Christian followers among them. It also includes data on current missional work being conducted in these areas. The underlying Joshua Project research initiative focuses on documenting people groups with the fewest followers of Christ.

Access requires requesting and receiving an API key by submitting a form with name, email, and intended use of the data (personal interest, presentations, research, organizational use, websites, or mobile apps), along with agreement to the Terms of Use. The provider offers getting-started tutorials, sample code, and interactive documentation in PHP, JavaScript, Ruby, and Python.

The API is intended for developers and organizations building websites, mobile apps, or research tools that require structured demographic and religious-affiliation data on global ethnic and linguistic groups.

Key features

  • Access to data on ethnic people groups worldwide
  • Country data covering nations globally
  • Language data for people groups
  • Data on current missional work being done in various areas
  • Interactive documentation available with an API key

Frequently asked questions

Is there a free tier?

The API requires requesting a free API key by submitting a form with name, email, and anticipated use of the data.

What data does this API provide?

It provides data on ethnic people groups, countries, languages, and current missional work happening in those areas.

What languages or platforms are supported for integration?

Sample code and getting-started tutorials are offered in PHP, JavaScript, Ruby, and Python.

Who is this API for?

It is intended for believers and others interested in accessing Joshua Project's research data for personal interest, presentations, research, organizational use, websites, or mobile apps.

Do I need an API key to view documentation?

You need an API key to use the interactive documentation, though general documentation is available to review.

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