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Theosis

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PostgreSQL-backed MCP server for deep Bible study, integrating 140+ translations, Greek/Hebrew lexicons, cross-references, and semantic search.

PrattyT85by PrattyT85
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About

PostgreSQL-backed MCP server for deep Bible study, integrating 140+ translations, Greek/Hebrew lexicons, cross-references, and semantic search.

README

Theological Research AI Interface — PostgreSQL-backed MCP server for deep Bible study.

Connect any MCP-compatible AI (Claude, GPT, local LLMs via Open WebUI) to a unified theological database with 140+ Bible translations, Greek/Hebrew lexicons, 340K+ cross-references, Church Fathers, Apocrypha, Pseudepigrapha, and AI-powered semantic search.

Features

  • Word Studies: LSJ Greek, BDB Hebrew, Abbott-Smith NT lexicons (19K+ entries)
  • Original Languages: Morphologically-tagged Greek NT and Hebrew OT (31K verses)
  • Cross-References: 340K+ connections from TSK, Harrison/Romhild, and scholarly sources
  • Study Notes: Aquifer Open Study Notes (102K entries) + Tyndale Bible Dictionary
  • 140+ Translations: Side-by-side comparison with full-text PostgreSQL tsvector search
  • Extra-Biblical Library: Church Fathers, Apocrypha, Pseudepigrapha (69+ texts)
  • Semantic Search: pgvector embeddings for finding thematically related passages
  • ANE Context: Ancient Near East cultural background across 9 historical periods
  • Theographic Data: 1,100+ biblical persons with genealogy and relationship graphs

Quick Start

# Set database URL
export THEOSIS_DATABASE_URL="postgresql://theosis:***@192.168.1.130:5432/theosis"

# Run as stdio MCP server (for Claude Desktop, Cursor, etc.)
uvx theosis-mcp --transport stdio

# Run as Streamable HTTP server (for Open WebUI)
uvx theosis-mcp --transport streamable-http --host 0.0.0.0 --port 8000

Open WebUI Integration

  1. In Open WebUI Admin Settings → External Tools, add an MCP connection:

    • URL: http://192.168.1.130:8000/mcp
    • Transport: Streamable HTTP

  2. All tools become available to any model in Open WebUI

Tools

Tool Description
word_study Deep dive into Greek/Hebrew words with full lexicon data
lookup_verse Get verse text with original language and morphology
search_lexicon Search LSJ/BDB/Strong's by English concepts
get_cross_references Find scholarly cross-reference connections
lookup_name Biblical persons, places with relationship data
parse_morphology Explain Greek/Hebrew grammatical codes
search_by_strongs Find all verses using a specific Greek/Hebrew word
find_similar_passages Semantic search with pgvector embeddings
explore_genealogy Multi-generational family trees
get_study_notes Aquifer study notes and Tyndale dictionary
get_dictionary_article Full Tyndale Bible Dictionary articles
get_ane_context Ancient Near East cultural background
get_theology_context Systematic theological themes
list_translations Browse 140+ available Bible translations
get_translation_verse Get a verse in a specific translation
compare_translations Side-by-side translation comparison
search_bible_fulltext Full-text search across all translations
list_extra_biblical_categories Browse Church Fathers library
search_extra_biblical Search Church Fathers, Apocrypha, Pseudepigrapha
get_extra_biblical_text Read specific extra-biblical texts
get_reading_plan Generate structured Bible reading plans

Credits

Built on the foundation of StudyBible MCP by David Jayatillake. Data from scrollmapper/bible_databases, STEPBible (CC BY 4.0), and the Theographic Bible Knowledge Graph.

License

MIT

from github.com/PrattyT85/theosis-mcp

Install Theosis in Claude Desktop, Claude Code & Cursor

Recommended · one command, every IDE
unyly install theosis-mcp

Installs into Claude Desktop, Claude Code, Cursor & VS Code — handles npx, uvx and build-from-source repos for you.

First time? Get the CLI: curl -fsSL https://unyly.org/install | sh

Or configure manually

Run in your terminal:

claude mcp add theosis-mcp -- uvx --from git+https://github.com/PrattyT85/theosis-mcp theosis-mcp

FAQ

Is Theosis MCP free?

Yes, Theosis MCP is free — one-click install via Unyly at no cost.

Does Theosis need an API key?

No, Theosis runs without API keys or environment variables.

Is Theosis hosted or self-hosted?

A hosted option is available: Unyly runs the server in the cloud, no local setup required.

How do I install Theosis in Claude Desktop, Claude Code or Cursor?

Open Theosis on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.

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