https://mcp.agentcard.sh/mcp with your organization credential (client_id + client_secret, or the org access token).
Behavior: read-only.
Get one cardholder by id (must belong to your org, in this mode).
https://mcp.agentcard.sh/mcp with your organization credential (client_id + client_secret, or the org access token).
Behavior: read-only.