CreateCard

An MCP tool from the Square API server, hosted on mcp.hjlabs.in.

CreateCard Adds a card on file to an existing merchant. [POST /v2/cards]

Name on the gateway: square_api__create_card · may change things.

Parameters

Name	Type	Description
`idempotency_key` required	`string`	A unique string that identifies this CreateCard request. Keys can be any valid…
`source_id` required	`string`	The ID of the source which represents the card information to be stored. This…
`verification_token`	`string`	An identifying token generated by Payments.verifyBuyer(). Verification tokens…
`card` required	`object`	Payment details associated with the card to be stored.

Through the Smart Gateway, any client can run it by name with call_tool, or let the gateway find it with search_tools:

call_tool arguments

{
  "name": "square_api__create_card",
  "arguments": {
    "idempotency_key": "…",
    "source_id": "…",
    "card": "…"
  }
}

Or connect the Square API server directly, which lists 308 tools including this one:

Run in your terminal

claude mcp add --transport http hj-square-api https://mcp.hjlabs.in/mcp/square-api \
  --header "Authorization: Bearer YOUR_API_KEY"

Use the createcard tool with idempotency_key set to ….