get_card_balance - Agentcard

Connect to https://mcp.agentcard.sh/mcp with the user’s connection token (or a buy_token for org-owned accounts). Behavior: read-only, idempotent.

What it does

The live balance of ONE virtual card (the user’s overall cash balance is get_balance). Prefer this over get_card_details when you only need to verify available funds: it is faster and does not expose sensitive card credentials.

Inputs

Field	Type	Description
`card_id` (required)	string	The card ID

Returns

Field	Type	Description
`message` (required)	string	Human-readable balance summary.
`balanceCents`	number	Available balance in cents.
`balanceDollars`	string	Available balance formatted as USD dollars, e.g. “12.50”.
`cached`	boolean	Whether the balance was served from a short-lived cache rather than fetched live.

Example call

{
  "tool": "get_card_balance",
  "arguments": {
    "card_id": "\u2026"
  }
}