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CreateWebhookSubscription

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

CreateWebhookSubscription Creates a webhook subscription. [POST /v2/webhooks/subscriptions]

Name on the gateway: square_api__create_webhook_subscription · may change things.

Parameters

Name	Type	Description
`idempotency_key`	`string`	A unique string that identifies the CreateWebhookSubscription request.
`subscription` required	`object`	The Subscription to create.

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_webhook_subscription",
  "arguments": {
    "subscription": "…"
  }
}

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 createwebhooksubscription tool with idempotency_key set to ….