Search for a book by its title on Open Library.
AI agents call get_book_by_title to retrieve information from Open Library MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
title | string | — | The title of the book to search for. |
Parameters from the server's own tool schema.
This tool retrieves book information based on a search query. It does not create, modify, delete, or execute any operations—it only queries and returns data. This is a straightforward Read operation with minimal security risk.
From the tool's definition Tool 'get_book_by_title' with description 'Search for a book by its title on Open Library' performs a search and retrieval operation with no mention of modification, deletion, or execution capabilities.
Documented attack patterns abuse exactly the kind of access get_book_by_title gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Open Library MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_book_by_title:
{
"version": "1",
"default": "deny",
"tools": {
"get_book_by_title": {}
}
}get_book_by_title is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Search for a book by its title on Open Library. It is categorised as a Read tool in the Open Library MCP Server MCP Server, which means it retrieves data without modifying state.
get_book_by_title accepts 1 parameter: title. The full parameter table on this page comes from the server's own tool schema.
Register the Open Library MCP Server MCP server in PolicyLayer and add a rule for get_book_by_title: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Open Library MCP Server. Nothing to install.
get_book_by_title is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_book_by_title rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_book_by_title. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_book_by_title is provided by the Open Library MCP Server MCP server (8enSmith/mcp-open-library). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Open Library MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
6 Open Library MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.