Listen to Sadhu MCP server

• Registry nameapp.listentosadhu/corpusverified in the MCP registry

The registry name sits under listentosadhu.app. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-31
• Tools21
• Server calls itselflectorium-corpus-mcp
• Server version164e873d29
• Protocol version2025-06-18

On 2026-10-31 the server answered initialize and tools/list without a sign-in. First answer in 463 ms.

• Its tools do every use case we checked: listen to scripture lectures during a commute or walk; locate lectures by topic, author, or date.
• Checked on 5 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 5 so far
• What an agent can do with it2 of 2 use cases
• Answeredmeasuring5 of the 7 daily checks it takes to print a share
• Median first answer469 ms
• Space in an agent's context≈ 3,358 tokensthe definitions of all its tools (21), which an agent carries on every turn
• Tool definitionsA · 98 of 100
• Typed results21 of 21 toolsdeclared outputSchema: results come typed, read once

• No description an agent can choose by: 2 of 21

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• author_list

  List all authors.

• author_resolve

  Find a author by name (fuzzy).

• document_get

  Get a document (commentary/prose_chapter/letter) by id.

• document_list

  List documents at a reference / in a book. A verse's purport = document_list(source, tokens, kind:"commentary").

• excerpt_prepare

  Generate (or fetch, if cached) the audio clip for a lecture passage and return its playable URL. This is the excerpt player's Play action — it is called for you by the player UI on demand. Agents should use excerpt_render to show the…

• excerpt_render

  Let the user HEAR a lecture passage inline. Call this when the user wants to LISTEN to a specific moment in a track — e.g. from a search(types:["track"]) hit, pass its track_id plus start_ms/end_ms. Renders an inline audio player that…

• location_list

  List all locations.

• location_resolve

  Find a location by name (fuzzy).

• media_render

  Show/play an existing corpus VIDEO clip inline. Call this when the user wants to WATCH a clip found via search(types:["media"]) — pass the hit's media_id. Renders an inline video player.

• search

  Semantic + lexical search over the corpus. Returns verses, documents, track passages and titles matching a natural-language query, each with the id needed to fetch the full record (verse_id→verse_get, document_id→document_get…

• source_get

  Get one book by id or code ("source_…" or "BG"/"БГ").

• source_list

  List all books (Caitanya-caritāmṛta is three sources).

• source_resolve

  Find a book by name (fuzzy): "gita", "бхагаватам", "CC Madhya".

• track_get

  Get a track (lecture/conversation): metadata, cited references, transcript/pdf availability.

• track_list

  List tracks, filterable by reference (source[+tokens] = tracks citing it), author/location/kind/date/lang. No filter ⇒ recent tracks (date desc).

• transcript_window

  Read a track's transcript around a time window (from a search track hit or track_list). Widen with pad_ms.

• verse_get

  Fetch a verse's raw fields for your own reasoning (NOT for display — to show a verse to the user, use verse_render). Returns original script + transliteration as line arrays; with lang, also the canonical translation inline plus an…

• verse_list

  List the verses of a book / chapter. Skips .0 chapter summaries; collapses merged verses into one item with a covers span.

• verse_render

  Show a verse to the user. THE DEFAULT way to display/read a scripture verse: renders an inline card with the original script (centered), transliteration in the requested language, the word-by-word, and the translation — all at once. Use…

• verse_synonyms

  Fetch the word-by-word ("Synonyms") as a raw {word, meaning} array for one verse translation (data — verse_render already shows the word-by-word inside the card). Defaults to the canonical rendering; pass `kind` for an alternative.

• verse_translation

  Fetch the text of ONE translation of a verse (data, not a card — to display a verse use verse_render). Defaults to the canonical (kind=canonical); pass a `kind` from verse_get's `alternatives` manifest to fetch a specific rendering.