> ## 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.

# getHighestSnapshotSlot

> Returns the highest slot information that the node has snapshots for.

This will find the highest full snapshot slot, and the highest incremental snapshot slot based on the full snapshot slot, if there is one.


## OpenAPI

````yaml openapi/rpc-http/getHighestSnapshotSlot.yaml POST /
openapi: 3.1.0
info:
  title: Solana RPC API
  version: 1.0.0
  description: >-
    Validator synchronization API for retrieving information about available
    Solana blockchain snapshots that enable fast node bootstrapping and ledger
    state reconstruction.
  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: getHighestSnapshotSlot
      description: >
        Retrieve information about the latest available Solana blockchain
        snapshots for validator bootstrapping.

        This node synchronization API returns the highest slots for which this
        RPC endpoint has snapshot data

        available. Snapshots are point-in-time archives of blockchain state that
        enable new validators to

        rapidly bootstrap without replaying the entire transaction history. The
        response includes both full 

        and incremental snapshot information, with full snapshots containing
        complete ledger state and incremental

        snapshots containing only state changes since the last full snapshot.
        Essential for validator operators 

        bootstrapping new nodes, network monitoring tools, and services tracking
        snapshot availability across 

        the network to facilitate fast validator deployment and recovery
        operations.
      operationId: getHighestSnapshotSlot
      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:
                    - getHighestSnapshotSlot
                  example: getHighestSnapshotSlot
                  default: getHighestSnapshotSlot
            example:
              jsonrpc: '2.0'
              id: '1'
              method: getHighestSnapshotSlot
      responses:
        '200':
          description: The node has a snapshot.
          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: >-
                      Latest available Solana blockchain snapshot information
                      from this node.
                    properties:
                      full:
                        type: integer
                        description: >-
                          Highest Solana slot for which a complete blockchain
                          state snapshot is available on this node.
                        example: 100
                      incremental:
                        type: integer
                        nullable: true
                        description: >-
                          Highest Solana slot for which an incremental state
                          delta snapshot is available, built on top of the full
                          snapshot.
                        example: 110
        '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).

````