Audioknihy MCP server

• Registry namecz.audioknihy/catalogverified in the MCP registry

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

• Stateanswerschecked 2026-10-26
• Tools13
• Server calls itselfcz.audioknihy/catalog
• Server version0.3.1
• Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 217 ms.

• Its tools do every use case we checked: find the cheapest audiobook across Czech shops; browse the catalogue by genre, author or narrator.
• Checked on 2 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: 2 so far
• What an agent can do with it2 of 2 use cases
• Answeredmeasuring2 of the 7 daily checks it takes to print a share
• Median first answer446 ms
• Space in an agent's context≈ 2,391 tokensthe definitions of all its tools (13), which an agent carries on every turn
• Tool definitionsA · 100 of 100
• Typed results13 of 13 toolsdeclared outputSchema: results come typed, read once

• Every tool passes all six checks.

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 →

• search_audiobooks

  Full-text + fuzzy search across more than 12,000 Czech audiobooks (title, author, narrator). Use when an agent needs to resolve a free-form query into one or more audiobook records.

• get_audiobook

  Full audiobook detail by author + work slug — title, description, cover, runtime, ISBN, genres, narrator, publisher, and the full table of active offers across retail partners.

• find_cheapest_offer

  Lowest-price active offer for an audiobook across all affiliate partners. USP — only Czech site that compares audiobook prices across all major retail partners.

• compare_all_offers

  Full price comparison table across every active retail partner for one audiobook. Returns price + format + last-seen timestamp per partner — agents can rank or filter.

• browse_genres

  List all 35 Czech audiobook genres with audiobook counts. Discovery entry point — agents enumerate genres before drilling into a specific one.

• search_by_filters

  Multi-facet search of audiobooks: combine genre, narrator, max price, year range. Use when an agent has structured constraints rather than a free-form query. V1 supports genre + narrator + price_max + year filters; partner filter coming…

• get_author

  Author profile + their audiobook works. Returns biography, photo, country, and the full list of audiobook editions where this person is credited as author / co-author / editor.

• get_narrator

  Narrator profile + audiobooks they have read. Czech audiobook listeners often choose by narrator (performance quality often matters more than the underlying text).

• list_partners

  List active retail partners with audiobook counts. Required for transparency / disclosure when an agent needs to explain HOW audioknihy.cz monetises recommendations (we are an affiliate aggregator, not a retailer).

• get_audiobook_rankings

  Catalog-wide audiobook rankings — cheapest, best-rated (databazeknih.cz, attributed), biggest price drops, or currently at price floor. Use for "best Czech audiobooks to buy now / cheapest / most discounted" queries that span the whole…

• get_price_trend

  Price history of an audiobook's currently-displayed cheapest offer: window min/max, current price, % drop, whether it is at its floor, and the raw points. Use to answer "is this a good price right now / has it dropped?". Returns null when…

• get_publisher

  Publisher (nakladatelství) profile + their audiobooks. Czech audiobook production is concentrated in a few publishers (Tympanum, OneHotBook, Témbr, Radioservis…); this resolves a publisher slug to its display name, audiobook count, and…

• get_price_index

  Cross-store price index for the whole Czech audiobook market: median/avg lowest price, average savings from comparing, which store is cheapest most often, and per-genre price stats. Original-research aggregate no single retailer publishes…