the402-mcp-server

Instructions

Implementation Reference

• src/tools/subscriptions.ts:27-41 (handler)

  The "subscribe_to_plan" tool is defined and registered here. The handler logic directly makes a balance-authorized POST request to the API.

  server.tool(
  	"subscribe_to_plan",
  	"Subscribe to a plan on the402.ai. Pays the first billing period from your pre-funded balance. Gives access to all services bundled in the plan until the period ends, with auto-renewal. Requires API key.",
  	{
  		plan_id: z.string().describe("The plan ID to subscribe to"),
  	},
  	async ({ plan_id }) => {
  		const result = await client.balancePost(`/v1/plans/${plan_id}/subscribe`);
  		return {
  			content: [
  				{ type: "text" as const, text: JSON.stringify(result, null, 2) },
  			],
  		};
  	}
  );