list_customers tool only returns customer IDs

[safranchik]

Describe the bug

The list_customers tool only returns a list of customer IDs:

[{"id":"cus_S0DqdedL4d4E27"},{"id":"cus_S0DqbklTTosNkC"},{"id":"cus_S0Dqztq8AjzSkZ"},{"id":"cus_S0DqMnmgl9EDpl"},{"id":"cus_S0Dqcp3HDU5f6L"},{"id":"cus_S0DqohKYJy6LE9"},{"id":"cus_S0DqXmUppyTgul"},{"id":"cus_S0DqJaIaY6jzBd"},{"id":"cus_S0Dq9n0LJ6OSkS"},{"id":"cus_S0Dq4x1XWMqRQM"}]

However, the API documentation suggests that customer metadata should also returned.

To Reproduce

1. Run MCP debug server

npx -y @modelcontextprotocol/inspector npx @stripe/mcp --tools=all --api-key={{API-KEY}}

2. Go to the Tools tab, click List Tools, and run the list_customers tool

Expected behavior

The MCP server should return a a list of users IDs and their metadata.

OS

macOs

Language version

Python 3.11.9

Additional context

This issue seems to be across all implementations, not just MCP

[HJ1X]

I've opened a PR for this issue. #59

[matv-stripe]

Hi @safranchik - we are thinking about the best way to do this and avoid data exfiltration when used with other MCP servers. We have thought about an opt-in system to enable exposing more sensitive data like customer PII. What are your thoughts on that?