> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dynamic.xyz/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Sponsor a Solana transaction via Grid API

> Sponsors a Solana transaction using the Grid API by Squads.
The Grid API replaces the fee payer with a sponsored account so users don't need SOL for gas.
Only available for environments with SVM gas sponsorship enabled.




## OpenAPI

````yaml post /sdk/{environmentId}/solana/sponsorTransaction
openapi: 3.0.1
info:
  title: Dashboard API
  description: Dashboard API documentation
  version: 1.0.0
servers:
  - url: https://app.dynamicauth.com/api/v0
  - url: https://app.dynamic.xyz/api/v0
  - url: http://localhost:3333/api/v0
security: []
tags:
  - name: Analytics
  - name: SDK
  - name: Organizations
  - name: Projects
  - name: Environments
  - name: Users
  - name: Invites
  - name: Tokens
  - name: Origins
  - name: Allowlists
  - name: Wallets
  - name: Members
  - name: Sessions
  - name: Settings
  - name: Gates
  - name: Chains
  - name: Exports
  - name: Events
  - name: Webhooks
  - name: Custom Fields
  - name: OrganizationMfaSettings
  - name: CustomHostnames
  - name: TestAccount
  - name: NameServices
  - name: GlobalWallets
  - name: GlobalWalletConnections
  - name: UserApiTokens
  - name: Waas
  - name: WalletConnect
paths:
  /sdk/{environmentId}/solana/sponsorTransaction:
    post:
      tags:
        - SDK
      summary: Sponsor a Solana transaction via Grid API
      description: >
        Sponsors a Solana transaction using the Grid API by Squads.

        The Grid API replaces the fee payer with a sponsored account so users
        don't need SOL for gas.

        Only available for environments with SVM gas sponsorship enabled.
      operationId: sponsorSVMTransaction
      parameters:
        - $ref: '#/components/parameters/environmentId'
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/SponsorSVMTransactionRequest'
        required: true
      responses:
        '200':
          description: Sponsored transaction
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SponsorSVMTransactionResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '500':
          $ref: '#/components/responses/InternalServerError'
components:
  parameters:
    environmentId:
      in: path
      name: environmentId
      required: true
      description: ID of the environment
      schema:
        $ref: '#/components/schemas/uuid'
  schemas:
    SponsorSVMTransactionRequest:
      type: object
      description: Request to sponsor a Solana transaction via Grid API
      properties:
        transaction:
          type: string
          pattern: ^[A-Za-z0-9+/]+={0,2}$
          description: >-
            Base64 encoded unsigned Solana transaction (versioned transaction
            format)
      required:
        - transaction
    SponsorSVMTransactionResponse:
      type: object
      description: Response containing the sponsored Solana transaction
      properties:
        transaction:
          type: string
          description: Base64 encoded transaction with Grid as the fee payer
    uuid:
      type: string
      pattern: ^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$
      minLength: 36
      maxLength: 36
      example: 95b11417-f18f-457f-8804-68e361f9164f
    BadRequest:
      type: object
      properties:
        error:
          type: string
    InternalServerError:
      type: object
      properties:
        error:
          type: string
          example: Internal Server Error
  responses:
    BadRequest:
      description: Bad Request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/BadRequest'
    InternalServerError:
      description: Internal Server Error
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/InternalServerError'

````