# Sovereign Logos

> Verbatim public-domain scripture with the Septuagint as the Old Testament: the text the apostles quoted. Side-by-side comparison against Masoretic-based translations, with free JSON, Markdown and MCP access for AI agents.

Sovereign Logos serves the full Septuagint Old Testament, including the books and passages missing from Masoretic-based Bibles, alongside the King James Version with Apocrypha and other public-domain texts. Scripture text is served exactly as published by its source and never altered. Every API response includes a citation URL to the chapter page; please link it when quoting.

## Agent access

- [MCP server](https://sovereignlogos.com/api/mcp): Streamable HTTP, no auth. Tools: get_passage, compare_translations, search_scripture, list_translations, list_books. Add with `claude mcp add --transport http sovereign-logos https://sovereignlogos.com/api/mcp`
- [Passage API](https://sovereignlogos.com/api/v1/scripture/passage?ref=Psalm%2023&translation=lxx2012&format=md): one passage, up to 200 verses, JSON or Markdown
- [Compare API](https://sovereignlogos.com/api/v1/scripture/compare?ref=Isaiah%207:14&translations=lxx2012,kjv&format=md): one reference across 2 to 6 translations
- [Search API](https://sovereignlogos.com/api/v1/scripture/search?q=virgin&translation=lxx2012): phrase search in one translation
- [OpenAPI spec](https://sovereignlogos.com/api/v1/scripture/openapi.json): full REST reference
- [Developer guide](https://sovereignlogos.com/developers): setup for Claude, ChatGPT, Cursor and VS Code, endpoints, limits, citation
- [Full reference for LLMs](https://sovereignlogos.com/llms-full.txt): this file plus parameters, numbering rules and provenance

## Translations

- `geneva-1560`: Geneva Bible (1560), Apocrypha. Public domain.
- `lxx-brenton`: Brenton's Septuagint Translation (1844). Public domain.
- `lxx2012`: Septuagint in American English (2012). Public domain by dedication.
- `kjv`: King James Version, with the Apocrypha (1611). Public domain.
- `web`: World English Bible, with the Deuterocanon (2020). Public domain by dedication.
- `geneva-1599`: Geneva Bible, 1599 edition (Tomson New Testament). Public domain.
- `charles-1917`: The Book of Enoch, translated by R.H. Charles (1917). Public domain.

Psalm references default to Masoretic (KJV) numbering and are converted for the Septuagint translations. Responses state the Septuagint number.

## Read

- [Bible](https://sovereignlogos.com/bible): every book and chapter, URL pattern /bible/{translation}/{book-slug}/{chapter}, e.g. https://sovereignlogos.com/bible/lxx2012/isaiah/7
- [Read the Septuagint](https://sovereignlogos.com/septuagint): every Septuagint book, grouped, in two English translations
- [Compare](https://sovereignlogos.com/compare): Septuagint and Masoretic-based texts side by side, with the passages the New Testament quotes from the Septuagint
- [Apocrypha](https://sovereignlogos.com/apocrypha): the books removed from English Bibles after 1827, in up to five translations
- [Geneva Bible](https://sovereignlogos.com/geneva-bible): the 1599 Geneva Bible and the 1560 Geneva Apocrypha, original spelling
- [Restored Books](https://sovereignlogos.com/restored-books): passages the Masoretic text removed, restored from the Septuagint
- [About the Septuagint](https://sovereignlogos.com/about-the-septuagint): why the Septuagint is the Old Testament text here, and how its numbering works
- [Beyond the Canon](https://sovereignlogos.com/beyond-the-canon): 1 Enoch, quoted in Jude 1:14-15
- [Sources](https://sovereignlogos.com/sources): translator, date, licence and upstream for every text

## Optional

- [Webster's 1828 Dictionary](https://sovereignlogos.com/dictionary): original definitions with scripture references
- [Bible reading plan](https://sovereignlogos.com/bible-reading-plan): a one-year plan through the whole Bible, with audio and daily email or SMS