openlibrary-isbn-lookup

Look up an Open Library edition by ISBN.

SERVERMeta Data Mcp SOURCEpypi:meta-data-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-derekslinz-meta-data-mcp/openlibrary-isbn-lookup.md

WHAT IT DOES

What openlibrary-isbn-lookup does on Meta Data Mcp

AI agents call openlibrary-isbn-lookup to retrieve information from Meta Data Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why openlibrary-isbn-lookup is rated Low

This tool performs a read-only lookup of public library metadata by ISBN. It queries an open data API (Open Library) to retrieve existing information. There are no side effects, no code execution, no data modification, and no destructive actions. The blast radius of misuse is minimal—an agent could retrieve unwanted bibliographic information, but cannot harm systems or data.

From the tool's definition Tool name 'openlibrary-isbn-lookup' and description 'Look up an Open Library edition by ISBN' indicate a query/lookup operation that retrieves bibliographic data without modifying, executing, or deleting anything.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs openlibrary-isbn-lookup safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Meta Data Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For openlibrary-isbn-lookup, this is the rule to start with:

openlibrary-isbn-lookup Allowed

openlibrary-isbn-lookup is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "openlibrary-isbn-lookup": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Meta Data Mcp, apply this rule, and every openlibrary-isbn-lookup call is checked against it from then on.

FAQ

Questions about openlibrary-isbn-lookup

What does the openlibrary-isbn-lookup tool do? +

Look up an Open Library edition by ISBN. It is categorised as a Read tool in the Meta Data Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on openlibrary-isbn-lookup? +

Register the Meta Data MCP server in PolicyLayer and add a rule for openlibrary-isbn-lookup: 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 Meta Data Mcp. Nothing to install.

What risk level is openlibrary-isbn-lookup? +

openlibrary-isbn-lookup is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit openlibrary-isbn-lookup? +

Yes. Add a rate_limit block to the openlibrary-isbn-lookup 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.

How do I block openlibrary-isbn-lookup completely? +

Set action: deny in the PolicyLayer policy for openlibrary-isbn-lookup. 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.

What MCP server provides openlibrary-isbn-lookup? +

openlibrary-isbn-lookup is provided by the Meta Data MCP server (pypi:meta-data-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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