# books.librivox.search

Search 20K+ public-domain audiobooks by title, author, or genre. Returns book IDs, descriptions, languages, copyright years, total time, and ZIP download URLs. LibriVox public domain

Agent View of the PolicyLayer registry record for `books.librivox.search`. HTML page: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/books.librivox.search

## Facts

- Tool: `books.librivox.search`
- Server: Apibase (`apibase-mcp-client`) — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase.md
- Install: `npx -y apibase-mcp-client`
- Homepage: https://github.com/whiteknightonhorse/APIbase
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 5
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `genre` | string | no | Genre filter — e.g. "Adventure", "Children's Fiction", "Mystery", "Plays", "Poetry". |
| `limit` | integer | no | Max results to return (default 25, max 100). |
| `title` | string | no | Substring search on audiobook title (e.g. "pride and prejudice", "treasure"). |
| `author` | string | no | Author name search (e.g. "shakespeare", "twain", "tolstoy"). |
| `offset` | integer | no | Pagination offset for stepping through large result sets. |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "books.librivox.search",
    "arguments": {}
  }
}
```

## Why books.librivox.search is rated Low

Retrieves metadata and download links for public-domain audiobooks; no side effects or mutations.

From the tool's own definition: "Search 20K+ public-domain audiobooks by title, author, genre. Returns book IDs, descriptions, languages, copyright years, total time, and ZIP download URLs."

## Use case

AI agents call books.librivox.search to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Apibase:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "books.librivox.search": {}
  }
}
```

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- …and 1353 more: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-whiteknightonhorse-apibase · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-whiteknightonhorse-apibase