Content API for Developers

Public REST API

Fideograph provides a read-only REST API for third-party access to its theological content database.

Authentication

All API requests require an API key sent via the X-FG-API-Key header. Rate limited to 100 requests per minute by default.

Endpoints

• GET /fideograph/v1/api/claims — Historical claims with doctrine/verdict filters
• GET /fideograph/v1/api/fathers — Church Father profiles
• GET /fideograph/v1/api/comparisons — Denominational comparisons
• GET /fideograph/v1/api/catechism — Catechism entries with search
• GET /fideograph/v1/api/councils — Ecumenical councils
• GET /fideograph/v1/api/quiz/questions — Quiz questions
• GET /fideograph/v1/api/doctrines — All doctrine categories with counts
• GET /fideograph/v1/api/engines — Registered engine summary