# list_payment_methods

List the signed-in user's saved payment cards (brand, last 4, expiry, default). Use the returned publicId with create_one_click_checkout to pre-select a card.

Agent View of the PolicyLayer registry record for `list_payment_methods`. HTML page: https://policylayer.com/tools/com-getmyhotels-getmyhotels/list-payment-methods

## Facts

- Tool: `list_payment_methods`
- Server: GetMyHotels (`https://mcp.getmyhotels.com`) — https://policylayer.com/tools/com-getmyhotels-getmyhotels.md
- Homepage: https://github.com/fenilsonani/gmh
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- 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_payment_methods",
    "arguments": {}
  }
}
```

## Why list_payment_methods is rated Low

This tool retrieves and displays stored payment card information without creating charges, modifying data, or executing transactions. However, severity is elevated from low to medium because payment card metadata (brand, last 4 digits, expiry) is sensitive PII that could be misused if an agent were compromised or manipulated into exfiltrating or logging this information.

From the tool's own definition: "Tool 'lists' payment methods and 'returns' card metadata (brand, last 4, expiry, default). Description emphasizes retrieval: 'List the signed-in user's saved payment cards' with no modification, deletion, or financial transaction."

## Use case

AI agents call list_payment_methods to retrieve information from GetMyHotels 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 GetMyHotels:

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

## Other tools on GetMyHotels (17)

- `cancel_booking` — Destructive — https://policylayer.com/tools/com-getmyhotels-getmyhotels/cancel-booking.md
- `create_checkout` — Financial — https://policylayer.com/tools/com-getmyhotels-getmyhotels/create-checkout.md
- `create_one_click_checkout` — Financial — https://policylayer.com/tools/com-getmyhotels-getmyhotels/create-one-click-checkout.md
- `fetch` — Read — https://policylayer.com/tools/com-getmyhotels-getmyhotels/fetch.md
- `get_booking` — Read — https://policylayer.com/tools/com-getmyhotels-getmyhotels/get-booking.md
- `get_checkout_quote` — Read — https://policylayer.com/tools/com-getmyhotels-getmyhotels/get-checkout-quote.md
- `get_hotel_details` — Read — https://policylayer.com/tools/com-getmyhotels-getmyhotels/get-hotel-details.md
- `get_my_booking` — Read — https://policylayer.com/tools/com-getmyhotels-getmyhotels/get-my-booking.md
- `get_rooms` — Read — https://policylayer.com/tools/com-getmyhotels-getmyhotels/get-rooms.md
- `list_my_bookings` — Read — https://policylayer.com/tools/com-getmyhotels-getmyhotels/list-my-bookings.md
- `list_trips` — Read — https://policylayer.com/tools/com-getmyhotels-getmyhotels/list-trips.md
- `search` — Read — https://policylayer.com/tools/com-getmyhotels-getmyhotels/search.md
- `search_hotels` — Read — https://policylayer.com/tools/com-getmyhotels-getmyhotels/search-hotels.md
- `add_trip_item` — Write — https://policylayer.com/tools/com-getmyhotels-getmyhotels/add-trip-item.md
- `modify_booking` — Write — https://policylayer.com/tools/com-getmyhotels-getmyhotels/modify-booking.md
- `request_booking_action_code` — Write — https://policylayer.com/tools/com-getmyhotels-getmyhotels/request-booking-action-code.md
- `save_trip` — Write — https://policylayer.com/tools/com-getmyhotels-getmyhotels/save-trip.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=com-getmyhotels-getmyhotels · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/com-getmyhotels-getmyhotels