helius_get_minimum_balance_for_rent_exemption
Calculate the minimum SOL balance needed for rent exemption on Solana based on data size and commitment level.
Instructions
Get the minimum balance required for rent exemption
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| dataSize | Yes | ||
| commitment | No |
Implementation Reference
- src/handlers/helius.ts:227-234 (handler)The main handler function that executes the tool logic by calling the Helius connection's getMinimumBalanceForRentExemption method with the provided dataSize and commitment.
export const getMinimumBalanceForRentExemptionHandler = async (input: GetMinimumBalanceForRentExemptionInput): Promise<ToolResultSchema> => { try { const minBalance = await (helius as any as Helius).connection.getMinimumBalanceForRentExemption(input.dataSize, input.commitment); return createSuccessResponse(`Minimum balance for rent exemption: ${minBalance}`); } catch (error) { return createErrorResponse(`Error getting minimum balance: ${error instanceof Error ? error.message : String(error)}`); } } - src/tools.ts:177-188 (schema)The MCP tool definition including the input schema for validation of dataSize (required number) and optional commitment level.
{ name: "helius_get_minimum_balance_for_rent_exemption", description: "Get the minimum balance required for rent exemption", inputSchema: { type: "object", properties: { dataSize: { type: "number" }, commitment: { type: "string", enum: ["confirmed", "finalized", "processed"] } }, required: ["dataSize"] } }, - src/tools.ts:563-563 (registration)Mapping of the tool name to its handler function in the central handlers dictionary used for tool execution.
"helius_get_minimum_balance_for_rent_exemption": getMinimumBalanceForRentExemptionHandler, - src/handlers/helius.types.ts:114-117 (schema)TypeScript interface defining the input shape for the handler function, matching the MCP schema.
export type GetMinimumBalanceForRentExemptionInput = { dataSize: number; commitment?: "confirmed" | "finalized" | "processed"; }