> ## Documentation Index > Fetch the complete documentation index at: https://www.helius.dev/docs/llms.txt > Use this file to discover all available pages before exploring further. # getInflationGovernor > Returns Solana's current inflation governor — the initial rate, terminal rate, foundation share, and taper schedule that determine how SOL issuance decays over time. ## OpenAPI ````yaml openapi/rpc-http/getInflationGovernor.yaml POST / openapi: 3.1.0 info: title: Solana RPC API version: 1.0.0 description: >- Economic policy API for retrieving the core Solana inflation model parameters that govern token issuance, including initial rate, terminal rate, and decay schedule. license: name: Apache 2.0 url: https://www.apache.org/licenses/LICENSE-2.0.html servers: - url: https://mainnet.helius-rpc.com description: Mainnet RPC endpoint - url: https://devnet.helius-rpc.com description: Devnet RPC endpoint security: [] paths: /: post: tags: - RPC summary: getInflationGovernor description: > Retrieve the fundamental parameters that control Solana's long-term monetary policy. This economic design API provides detailed information about the blockchain's inflation model configuration, including initial and terminal inflation rates, disinflationary taper rate, and foundation allocation details. Solana uses a disinflationary token issuance model where inflation gradually decreases from an initial higher rate to a long-term sustainable lower rate. Essential for economic researchers, tokenomics analysts, long-term investors, and applications modeling future token supply, staking rewards projections, or forecasting Solana's monetary policy trajectory over extended timeframes. operationId: getInflationGovernor requestBody: required: true content: application/json: schema: type: object properties: jsonrpc: type: string description: The JSON-RPC protocol version. enum: - '2.0' example: '2.0' default: '2.0' id: type: string description: A unique identifier for the request. example: '1' default: '1' method: type: string description: The name of the RPC method to invoke. enum: - getInflationGovernor example: getInflationGovernor default: getInflationGovernor example: jsonrpc: '2.0' id: '1' method: getInflationGovernor responses: '200': description: Successfully retrieved inflation governor information. content: application/json: schema: type: object properties: jsonrpc: type: string description: The JSON-RPC protocol version. enum: - '2.0' example: '2.0' id: type: string description: Identifier matching the request. example: '1' result: type: object description: >- Comprehensive parameters defining Solana's long-term monetary policy and inflation model. properties: initial: type: number format: float description: >- Starting annual inflation rate at the beginning of Solana's mainnet (decimal format, e.g., 0.08 = 8%). example: 0.15 terminal: type: number format: float description: >- Long-term sustainable inflation rate that the system will eventually reach and maintain indefinitely. example: 0.015 taper: type: number format: float description: >- Annual rate at which inflation decreases from initial to terminal rate (disinflationary schedule speed). example: 0.15 foundation: type: number format: float description: >- Percentage of total inflation allocated to the Solana Foundation for ecosystem development. example: 0.05 foundationTerm: type: number format: float description: >- Duration in years for which the foundation receives an allocation from inflation. example: 7 example: jsonrpc: '2.0' id: '1' result: initial: 0.15 terminal: 0.015 taper: 0.15 foundation: 0.05 foundationTerm: 7 '400': description: Bad Request - Invalid request parameters or malformed request. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: jsonrpc: '2.0' error: code: -32602 message: Invalid params id: '1' '401': description: Unauthorized - Invalid or missing API key. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: jsonrpc: '2.0' error: code: -32001 message: Unauthorized id: '1' '429': description: Too Many Requests - Rate limit exceeded. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: jsonrpc: '2.0' error: code: -32005 message: Too many requests id: '1' '500': description: Internal Server Error - An error occurred on the server. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: jsonrpc: '2.0' error: code: -32603 message: Internal error id: '1' '503': description: Service Unavailable - The service is temporarily unavailable. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: jsonrpc: '2.0' error: code: -32002 message: Service unavailable id: '1' '504': description: Gateway Timeout - The request timed out. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: jsonrpc: '2.0' error: code: -32003 message: Gateway timeout id: '1' security: - ApiKeyQuery: [] components: schemas: ErrorResponse: type: object properties: jsonrpc: type: string description: The JSON-RPC protocol version. enum: - '2.0' example: '2.0' error: type: object properties: code: type: integer description: The error code. example: -32602 message: type: string description: The error message. data: type: object description: Additional data about the error. id: type: string description: Identifier matching the request. example: '1' securitySchemes: ApiKeyQuery: type: apiKey in: query name: api-key description: >- Your Helius API key. You can get one for free in the [dashboard](https://dashboard.helius.dev/api-keys). ````