> ## Documentation Index
> Fetch the complete documentation index at: https://magicblock-42-dhruvja-docs-navigation-restructure.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Send Transaction

> Submit a signed, serialized transaction. Use the `sendTo` value returned by a build endpoint (deposit / transfer / withdraw / stealth-pool) to route the transaction to the base layer or the ephemeral RPC. Accepts an optional `Authorization: Bearer <token>` header for ephemeral submissions that require it.



## OpenAPI

````yaml pages/ephemeral-spl-token/api-reference/openapi/transaction-send.openapi.json POST /v1/transaction/send
openapi: 3.1.0
info:
  title: Private Payments API
  version: 0.1.0
  description: >-
    Submit a signed transaction produced by the build endpoints to the correct
    base-layer or ephemeral RPC.
servers:
  - url: https://payments.magicblock.app
    description: Mainnet - Private Payments API
security: []
paths:
  /v1/transaction/send:
    post:
      summary: Send Transaction
      description: >-
        Submit a signed, serialized transaction. Use the `sendTo` value returned
        by a build endpoint (deposit / transfer / withdraw / stealth-pool) to
        route the transaction to the base layer or the ephemeral RPC. Accepts an
        optional `Authorization: Bearer <token>` header for ephemeral
        submissions that require it.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                transactionBase64:
                  type: string
                  minLength: 1
                  description: The signed, serialized transaction encoded as base64.
                sendTo:
                  type: string
                  enum:
                    - base
                    - ephemeral
                  description: >-
                    Where to submit. Use the `sendTo` value returned by the
                    build endpoint.
                sendRpcEndpoint:
                  type: string
                  format: uri
                  description: >-
                    Optional. Explicit ephemeral RPC endpoint. Only valid when
                    `sendTo` is `ephemeral`.
                cluster:
                  anyOf:
                    - type: string
                      enum:
                        - mainnet
                        - devnet
                        - mainnet-private
                        - devnet-private
                    - type: string
                  example: mainnet
                  description: Optional. Cluster selector or custom http(s) RPC URL.
                confirm:
                  type: boolean
                  description: >-
                    Optional. Defaults to `false`. When `true`, the API confirms
                    the transaction and requires `recentBlockhash` and
                    `lastValidBlockHeight`.
                recentBlockhash:
                  type: string
                  description: Required when `confirm` is `true`.
                lastValidBlockHeight:
                  type: integer
                  minimum: 0
                  description: Required when `confirm` is `true`.
                skipPreflight:
                  type: boolean
                  description: Optional. Skip preflight checks on submission.
                maxRetries:
                  type: integer
                  minimum: 0
                  description: Optional. Maximum number of send retries.
              required:
                - transactionBase64
                - sendTo
              if:
                properties:
                  confirm:
                    const: true
                required:
                  - confirm
              then:
                required:
                  - recentBlockhash
                  - lastValidBlockHeight
              example:
                transactionBase64: AQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
                sendTo: base
                confirm: false
      responses:
        '200':
          description: Submission result
          content:
            application/json:
              schema:
                type: object
                properties:
                  signature:
                    type: string
                  sendTo:
                    type: string
                    enum:
                      - base
                      - ephemeral
                  confirmed:
                    type: boolean
                  confirmationRpcEndpoint:
                    type: string
                    format: uri
                  confirmationRequiresAuthToken:
                    type: boolean
                required:
                  - signature
                  - sendTo
                  - confirmed
                  - confirmationRpcEndpoint
                  - confirmationRequiresAuthToken
              example:
                signature: 5x8...abc
                sendTo: base
                confirmed: true
                confirmationRpcEndpoint: https://api.mainnet-beta.solana.com
                confirmationRequiresAuthToken: false
        '400':
          description: Send error
        '422':
          description: Validation error
      security:
        - bearerAuth: []
        - {}
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Token obtained from the `/v1/spl/login` flow.

````