LunchMoney MCP Server

Instructions

Implementation Reference

• src/tools/transactions.ts:596-628 (handler)

  Handler function that performs DELETE request to Lunchmoney API to delete transaction group by ID.

  async ({ input }) => {
      const { baseUrl, lunchmoneyApiToken } = getConfig();
  
      const response = await fetch(
          `${baseUrl}/transactions/group/${input.transaction_id}`,
          {
              method: "DELETE",
              headers: {
                  Authorization: `Bearer ${lunchmoneyApiToken}`,
              },
          }
      );
  
      if (!response.ok) {
          return {
              content: [
                  {
                      type: "text",
                      text: `Failed to delete transaction group: ${response.statusText}`,
                  },
              ],
          };
      }
  
      return {
          content: [
              {
                  type: "text",
                  text: "Transaction group deleted successfully",
              },
          ],
      };
  }

• src/tools/transactions.ts:589-595 (schema)

  Zod input schema defining transaction_id as a required number.

  {
      input: z.object({
          transaction_id: z
              .number()
              .describe("ID of the transaction group to delete"),
      }),
  },

• src/tools/transactions.ts:587-629 (registration)

  Registration of the delete_transaction_group tool with server.tool, including description, schema, and inline handler.

      "delete_transaction_group",
      "Delete a transaction group or a single transaction.",
      {
          input: z.object({
              transaction_id: z
                  .number()
                  .describe("ID of the transaction group to delete"),
          }),
      },
      async ({ input }) => {
          const { baseUrl, lunchmoneyApiToken } = getConfig();
  
          const response = await fetch(
              `${baseUrl}/transactions/group/${input.transaction_id}`,
              {
                  method: "DELETE",
                  headers: {
                      Authorization: `Bearer ${lunchmoneyApiToken}`,
                  },
              }
          );
  
          if (!response.ok) {
              return {
                  content: [
                      {
                          type: "text",
                          text: `Failed to delete transaction group: ${response.statusText}`,
                      },
                  ],
              };
          }
  
          return {
              content: [
                  {
                      type: "text",
                      text: "Transaction group deleted successfully",
                  },
              ],
          };
      }
  );