# BoekenBase — Nederlandse boekencatalogus (nl.boekenbase/catalogus@1.0.0) > Source: > Published: 2026-09-15 14:50:56+00:00 [← Index](https://mcpindex.ai/leaderboard) # BoekenBase — Nederlandse boekencatalogus Search the Dutch book catalog (2M+ titles, daily updates): natural language, ISBN, new releases. The current version, v1.0.0, was published to the official MCP registry on 2026-09-15. It is distributed as a hosted remote over streamable-http, filed under Search by this index. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; [the index's current counts](https://mcpindex.ai/stats) put this record in context. ## Using BoekenBase — Nederlandse boekencatalogus in Claude, Cursor, Gemini CLI, Cline, or Zed? MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and **HOLDs the call** when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use **Install this server** for that). Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less ``` uv tool install mcpindex-gate && mcpindex-config-wire ``` [method](https://mcpindex.ai/methodology) Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: [the eval, four-state verdict, honest limits](https://mcpindex.ai/methodology). Own this server? [Screen its description →](https://mcpindex.ai/screen) ## That verdict was true at screening time (snapshot 2026-09-15). Contracts can change after screening, with no version bump. The gate pins BoekenBase — Nederlandse boekencatalogus’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday. [See your first HOLD in 2 minutes →](https://mcpindex.ai/guides/install-the-gate-first-hold) Related: [how to trust an MCP server](https://mcpindex.ai/guides/how-to-trust-an-mcp-server) · [screen before install](https://mcpindex.ai/guides/screen-mcp-server-before-install) · [silent contract drift](https://mcpindex.ai/guides/mcp-silent-contract-drift) [methodology](https://mcpindex.ai/methodology) [EmpirioLabs AIai.empiriolabs/mcp](https://mcpindex.ai/server/ai-empiriolabs-mcp) Every EmpirioLabs model and platform feature as tools: chat, media, search, jobs, GPU Cloud, agents. [Fodda Topic & Trend Researchai.fodda/topic-research](https://mcpindex.ai/server/ai-fodda-topic-research) Trend, stats & insight search across PSFK expert graphs with citable sources. [Intermediair Jobsnl.intermediair.www/jobs](https://mcpindex.ai/server/nl-intermediair-www-jobs) Search and retrieve job postings on Intermediair (read-only).