# list_airports

List all known airports with EU status

Agent View of the PolicyLayer registry record for `list_airports`. HTML page: https://policylayer.com/tools/dev-danielsuchan-eu261/list-airports

## Facts

- Tool: `list_airports`
- Server: EU261 Flight Compensation (`https://eu261.danielsuchan.dev/mcp`) — https://policylayer.com/tools/dev-danielsuchan-eu261.md
- Homepage: https://github.com/MrSucik/eu261-mcp
- Risk category: Read (Low risk)
- Registry record: grade C, identity unverified
- Server auth posture: open
- Server CORS policy: *
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

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

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "list_airports",
    "arguments": {}
  }
}
```

## Why list_airports is rated Low

This tool retrieves/queries a static list of airports. It is a straightforward read-only operation that returns information without creating, modifying, deleting, or executing any operations. The low severity reflects minimal risk from misuse—an AI agent listing airports poses no financial, security, or operational threat.

From the tool's own definition: "Tool name 'list_airports' and description 'List all known airports with EU status' indicate a simple data retrieval operation with no modification, deletion, or side effects."

## Use case

AI agents call list_airports to retrieve information from EU261 Flight Compensation 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 EU261 Flight Compensation:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_airports": {}
  }
}
```

## Other tools on EU261 Flight Compensation (5)

- `check_eligibility` — Read — https://policylayer.com/tools/dev-danielsuchan-eu261/check-eligibility.md
- `compute_ev` — Read — https://policylayer.com/tools/dev-danielsuchan-eu261/compute-ev.md
- `distance` — Read — https://policylayer.com/tools/dev-danielsuchan-eu261/distance.md
- `get_price_history` — Read — https://policylayer.com/tools/dev-danielsuchan-eu261/get-price-history.md
- `record_price` — Write — https://policylayer.com/tools/dev-danielsuchan-eu261/record-price.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=dev-danielsuchan-eu261 · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/dev-danielsuchan-eu261