contacts_list

List everyone in the caller's address book

Free. This one only touches this instance's own storage, so there is nothing to charge for.

Runs on Contacts — The caller's own address book: turn a name into an address.

Calling it

Three doors onto the same method. MCP is what an agent speaks, REST is what a program speaks, and the answer is identical.

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

Try it in the playground.