Low Risk

list_airlines

List airlines with pagination and optional search.

How to control list_airlines ↓

What list_airlines does on Aviationstack MCP Server

AI agents call list_airlines to retrieve information from Aviationstack MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Low Risk

Why list_airlines needs a policy

This tool retrieves and queries airline data without modifying, deleting, or executing any operations. It fits the Read category profile: search, list, and fetch operations that have no side effects on the system or data. Low severity reflects minimal risk from misuse—an AI agent can safely call this tool as it only returns informational data about airlines.

From the tool's definition Tool name 'list_airlines' and description 'List airlines with pagination and optional search' indicate a data retrieval operation with no side effects. The verb 'list' and context of pagination and search are characteristic of read-only query operations.

Documented attack patterns abuse exactly the kind of access list_airlines gives an agent:

How to control list_airlines

PolicyLayer is an MCP gateway — it sits between your AI agents and Aviationstack MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for list_airlines:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_airlines": {}
  }
}

list_airlines is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

  1. Create a free account and register Aviationstack MCP Server — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
CAP THIS TOOL →

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Related tools and policies

Go deeper

Questions about list_airlines

What does the list_airlines tool do? +

List airlines with pagination and optional search. It is categorised as a Read tool in the Aviationstack MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_airlines? +

Register the Aviationstack MCP Server MCP server in PolicyLayer and add a rule for list_airlines: 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 Aviationstack MCP Server. Nothing to install.

What risk level is list_airlines? +

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

Can I rate-limit list_airlines? +

Yes. Add a rate_limit block to the list_airlines 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 list_airlines completely? +

Set action: deny in the PolicyLayer policy for list_airlines. 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 list_airlines? +

list_airlines is provided by the Aviationstack MCP Server MCP server (pradumnasaraf/aviationstack-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Aviationstack MCP Server tool call.

Start from Aviationstack 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.

12 Aviationstack MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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