MCP Helius

Instructions

Implementation Reference

• src/handlers/helius.ts:281-289 (handler)

  The core handler function that executes the tool logic by calling getEpochSchedule on the Helius Solana connection and formatting the response.
  export const getEpochScheduleHandler = async (input: GetEpochScheduleInput): Promise<ToolResultSchema> => { try { // getEpochSchedule doesn't accept any parameters in the real SDK const epochSchedule = await (helius as any as Helius).connection.getEpochSchedule(); return createSuccessResponse(`Epoch schedule: ${JSON.stringify(epochSchedule, null, 2)}`); } catch (error) { return createErrorResponse(`Error getting epoch schedule: ${error instanceof Error ? error.message : String(error)}`); } }
• src/tools.ts:231-241 (schema)

  The MCP tool schema defining the name, description, and input validation schema.
  { name: "helius_get_epoch_schedule", description: "Get the epoch schedule", inputSchema: { type: "object", properties: { commitment: { type: "string", enum: ["confirmed", "finalized", "processed"] } }, required: [] } },
• src/tools.ts:567-567 (registration)

  Registration of the tool name to its handler function in the handlers dictionary.
  "helius_get_epoch_schedule": getEpochScheduleHandler,
• src/handlers/helius.types.ts:134-136 (schema)

  TypeScript type definition for the handler input, matching the tool schema.
  export type GetEpochScheduleInput = { commitment?: "confirmed" | "finalized" | "processed"; }