Mailbox: list, get, parse (x402)

Human flow: submit details, pay via x402, then enter your mailbox password. Use ids from List messages in Get / Parse.

1) List Messages ($0.001)

2) Get Message ($0.002)

3) Parse Attachments ($0.01)

Outbound send uses Send message (0.01 USDC): compose → pay → password.

Machine POST Endpoints

Automations should use POST with JSON and optional X-PAYMENT header.

{
  "list": "/admin-api/machine/request/list",
  "message": "/admin-api/machine/request/message",
  "attachments": "/admin-api/machine/request/attachments",
  "send": "/admin-api/machine/request/send",
  "body_fields_list_message": ["email", "username", "password", "limit", "message_id"],
  "body_fields_send": ["email", "username", "password", "to", "cc", "bcc", "subject", "body"]
}

Machine clients can still use JSON POST APIs directly at with header.