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Bible MCP

Bible corpus MCP server: scripture, Greek/Hebrew interlinear data, cross-refs, semantic search.

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Overview

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From the project README

bible-mcp

An MCP server for Christian scholarship and research. Non-commercial, aiming to become a public resource. See corpus-survey.md for the full source/license landscape and ROADMAP.md for direction.

What's in it (v0.14)

DataSourceLicense
Berean Standard Bible (66 books)berean.biblePublic Domain
World English Bible, Ecumenical (83 books incl. Apocrypha)ebible.orgPublic Domain
Septuagint (Brenton translation, 1851) — OT + Apocrypha, incl. Susanna/Bel and the Dragon/Epistle of Jeremiah as separate books; Psalms remapped to standard English/KJV numbering (LXX's own numbering diverges throughout most of the Psalter — verified verse-by-verse against WEB); Jeremiah, Daniel-Greek, Exodus, Job, Esther-Greek, and Baruch retain Brenton's native LXX chapter/verse structure, which differs from BSB/WEB in these books (reordering and/or length, not just numbering)ebible.orgPublic Domain
Septuagint, Greek text (Swete edition, Cambridge 1887–1894) — Genesis through Malachi plus Apocrypha, Theodotion Daniel/Susanna/Bel; same Psalms remap and native-structure caveats as the English Brenton text above. Word-level (surface form only, no lemma/Strong's/morphology), powers get_interlinear alongside the Hebrew/Aramaic OT and Greek NTOpen Greek and Latin Project / First1KGreek, via github.com/nathans/lxx-sweteCC BY-SA 4.0
613,690 original-language words: Greek NT + Hebrew/Aramaic OT with lemmas, Strong's, morphology, glosses, semantic domainsMACULA (Clear-Bible/Biblica)CC BY 4.0
Brown-Driver-Briggs Hebrew and English Lexicon (1906, 9,290 entries) + Strong's Hebrew Dictionary (1890, revised, 8,674 entries) — full scholarly entries (etymology, sense divisions, verse citations) keyed by Strong's number, including BDB's own lettered homographs (e.g. H2617a "lovingkindness" vs H2617b "reproach" — genuinely different words, same spelling); surfaces in word_study alongside the existing short glossOpenScriptures HebrewLexiconCC BY 4.0 (markup; underlying BDB/Strong's text is Public Domain)
Abbott-Smith's Manual Greek Lexicon of the New Testament (1922, 517 entries) — same treatment for Greek NT wordsFirst1KGreek / Open Greek and Latin Project, via github.com/biblicalhumanities/Abbott-SmithPublic Domain
~345,000 ranked cross-referencesopenbible.infoCC BY
~4,800 people/places/events/groups + 53,000 verse linksTheographic Bible MetadataCC BY-SA 4.0
Six PD classics: Augustine's Confessions, Imitation of Christ, Pilgrim's Progress, Practice of the Presence of God, Julian's Revelations, Chesterton's OrthodoxyProject GutenbergPublic Domain
The Apostolic Fathers, ten works: 1 & 2 Clement, Epistle of Barnabas, Polycarp to the Philippians, Martyrdom of Polycarp, Epistles of Ignatius (shorter recension), Martyrdom of Ignatius, Epistle to Diognetus, Pastor of Hermas, Fragments of PapiasANF (Roberts-Donaldson-Crombie), Project Gutenberg #77576Public Domain
Irenaeus: Against Heresies, Books I–V + Fragments — 806 sections addressed as IREN-AH<book>.<chapter>.<section> so standard citations (AH 3.3.4) resolve directly; 1,598 tier-1 scripture citationsANF vol. I (Roberts-Rambaut), Wikisource transcriptionPublic Domain
Justin Martyr: First Apology, Second Apology, Dialogue with Trypho, Martyrdom of Justin — 423 sections, ~408 tier-1 citationsANF vol. I, Wikisource transcriptionPublic Domain
Tier-1 citation graph: scripture citations extracted from the translators' own footnotes across the patristic shelf (see DESIGN.md §4)——
Versemap: 988 empirically derived MT/NA ↔ English verse alignments across 31 books (Joel 2–4, Malachi 3–4, Hosea, Isaiah 64, Kings/Chronicles/Nehemiah seams, 3 John, Acts 19, Rev 12…), gloss-validated; plus the Psalms superscription offsetsderived from corpus—
Research outputs layer (layer='output'): Layer 0 corpus surveys + Layer 2 research briefs for potter-and-clay, living water, wilderness — searchable, embedded, with draws_on links back to their grounding refsgenerated in-project—
~112,400 embeddings (verse/window/paragraph) for semantic + hybrid search across every layerbge-small-en-v1.5, generated locally—
Easton's Bible Dictionary (1897 3rd edition, 2,491 entries) — a full corpus document like the PD classics above: searchable (search(version="EASTON")), readable (read_work("EASTON", ...)), embedded for semantic searchTheographic's structured JSON re-derivationPublic Domain
OT+NT concept graph: 5,673 concept nodes (theological themes + lexical keywords, seeded from Easton's Bible Dictionary) and 171,000+ typed/associated edges (broader/narrower/causes/part_of/symbol_of/fulfills/associated) linking concepts to each other, to entities, and to verse anchors across both Testaments; ~440 typed edges hand-reviewed against cited evidence (Phase 5/6), the rest mechanical associated overlap counts. Live via get_concept/concepts_in_passage/get_concept_relations, see DESIGN.md §5derived from corpus + Easton's Bible Dictionary—

All in one SQLite file (db/bible.db, ~400MB) with FTS5 full-text search. Prose works are addressed as WORK.chapter.paragraph. See DESIGN.md for the architecture rationale.

Tools

  • get_passage(reference, version="BSB") — Bible text for a reference, e.g. John 3:16, John 3:16-18, Genesis 1. Versions: BSB, WEB (Apocrypha requires version="WEB").
  • search(query, version="BSB", book="", limit=20) — Full-text search, stemmed and ranked (BM25). Supports quoted phrases and AND/OR/NOT, e.g. faith AND works NOT law. version also takes any prose work id. Note: stemming conflates related surface forms (e.g. "desert" also matches "deserted") — quote exact phrases or add AND-terms to disambiguate.
  • semantic_search(query, top_k=12, kind="", hybrid=True) — Meaning-based search across the whole corpus (scripture + prose), hybrid-fused with keyword search (RRF) by default. Finds passages on a theme even with no shared words, e.g. "divine self-emptying". kind optional: verse | window | paragraph.
  • find_similar(reference, top_k=10) — Nearest passages by embedding to a given verse or prose paragraph, across scripture, Apocrypha, and the classics. Powers parallel-finding across corpus layers.
  • word_study(query, language="", limit=15) — Original-language word study by Strong's number (zero-padding optional), lemma (pointed or unpointed), Hebrew/Aramaic transliteration (e.g. miqweh, macrons optional), or English gloss. Returns occurrence counts, gloss range, book distribution, a full scholarly lexicon entry when available (BDB/Strong's for Hebrew, Abbott-Smith for Greek — richer than the gloss, truncated to ~700 chars), and sample verses. Lettered homograph variants (e.g. H4723 vs H4723a — same written form, different word) are surfaced together. language optional: grc | hbo | arc.
  • get_interlinear(reference) — Word-by-word original language for a verse or short range: surface form, lemma, Strong's, gloss, morphology (Hebrew/Aramaic OT, Greek NT). Versemap-corrected across all books, not just Psalms. For OT verses also shows Septuagint Greek surface text where available (no lemma/Strong's/morphology in that source).
  • get_cross_references(reference, limit=20) — Cross-references for a verse (OpenBible.info, ranked by community votes), with the target text included.
  • get_citations(reference, limit=20) — Where a verse is cited by name in the patristic corpus, extracted from the translators' own footnotes (tier 1). Complements get_cross_references (scripture→scripture); this is patristic text→scripture. Coverage is sparse by design — an empty result doesn't mean uncited; full-text search within the patristic works is the thorough probe.
  • get_entity(name, entity_type="") — Look up a biblical person, place, event, or people group by name (Theographic knowledge graph); returns details and where they appear. entity_type optional: person | place | event | people_group.
  • entities_in_passage(reference) — People, places, and events linked to a verse or chapter, e.g. Genesis 14.
  • get_concept(name, concept_type="") — Look up a theological concept or lexical keyword in the OT+NT concept graph (seeded from Easton's Bible Dictionary); returns its definition, verse anchors, instantiating entities, and a relation-count summary. concept_type optional: theme | keyword. Also accepts a Strong's number.
  • concepts_in_passage(reference) — Theological concepts and keywords linked to a verse or chapter, e.g. Genesis 15. Complements entities_in_passage.
  • get_concept_relations(name, verb="", limit=20) — Typed relations for a concept: broader/narrower/causes/part_of/symbol_of/fulfills/contrasts, hand-reviewed against cited evidence. Excludes the much larger mechanical associated tier by default — pass verb="associated" to include it.
  • read_work(work, chapter=1, start=1, end=5) — Read a prose work by paragraph range (CONFESSIONS, IMITATION, PILGRIM, PRESENCE, JULIAN, ORTHODOXY, 1CLEMENT, BARNABAS, EASTON, and others — see corpus_info() for the full list). Use search(version=<WORK>) to find passages first.
  • compare_versions(reference) — A verse or short range in BSB and WEB, side by side.
  • corpus_info() — What's in the corpus: documents, layers, licenses, and counts.

Prompts

The server also exposes the synthesis pipeline as MCP prompts, generated from .claude/skills/ (the source of truth): corpus_survey(theme) — Layer 0 raw reading discipline; corpus_composer(theme) — Layer 2 research-brief composition. Any MCP client that installs bible-mcp gets the discipline bundled with the data.

Setup

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Frequently Asked Questions about Bible MCP

bible-mcp is an MCP server that provides Bible texts, original-language data, interlinear material, cross-references, semantic search, and historical Christian writings for scholarship and research. It includes BSB, WEB, Septuagint English and Greek, MACULA language data, lexicons, metadata, and patristic and classic works. Its listed sources and licenses are documented in the project README.

bible-mcp includes the 66-book Berean Standard Bible, the 83-book ecumenical World English Bible, and Brenton’s English Septuagint. It also includes Swete’s Greek Septuagint text, including the Apocrypha and specified deuterocanonical works. The Septuagint data includes documented Psalms remapping and native chapter-and-verse structure differences in several books.

Yes, bible-mcp provides Greek New Testament and Hebrew/Aramaic Old Testament data with lemmas, Strong’s numbers, morphology, glosses, and semantic domains from MACULA. Its Greek Septuagint text also powers get_interlinear, but that Swete data contains surface forms only and does not provide lemma, Strong’s, or morphology information.

bible-mcp includes Brown-Driver-Briggs, Strong’s Hebrew Dictionary, and Abbott-Smith’s Manual Greek Lexicon. It also provides ranked cross-references, people/place/event/group metadata, scripture citation graphs, patristic works including Irenaeus and Justin Martyr, six public-domain Christian classics, and the word_study capability for lexical research.

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