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

# Submit transaction

> Forward a fully signed Solana transaction (base64-encoded) on behalf
of the caller. Used by the UI to relay the create / buy / sell
transactions through the platform's RPC for priority-fee uplift and
retry handling.




## OpenAPI

````yaml /api-reference/openapi/launch-mint-v1.yaml post /create/sendTransaction
openapi: 3.0.3
info:
  title: Raydium Launch Mint API
  description: >-
    Provides access to mint creation, leaderboards, search, and historical data
    for LaunchLab tokens. Supports searching by name, symbol, wallet creator,
    and various filtering options.
  version: 1.0.0
servers:
  - url: https://launch-mint-v1.raydium.io
    description: Mainnet
  - url: https://launch-mint-v1-devnet.raydium.io
    description: Devnet
security: []
tags:
  - name: Discovery
    description: Search and browse mints
  - name: Details
    description: Retrieve mint information
  - name: User Activity
    description: Get user creation and trading statistics
  - name: Vesting
    description: Query vesting schedule data
  - name: Configuration
    description: Platform configuration and metadata
  - name: Creation
    description: Create new mints and submit transactions
  - name: Utilities
    description: Health checks and status
paths:
  /create/sendTransaction:
    post:
      tags:
        - Creation
      summary: Submit transaction
      description: |
        Forward a fully signed Solana transaction (base64-encoded) on behalf
        of the caller. Used by the UI to relay the create / buy / sell
        transactions through the platform's RPC for priority-fee uplift and
        retry handling.
      operationId: postCreateSendTransaction
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - transaction
                - wallet
              properties:
                transaction:
                  type: string
                  description: Base64-encoded fully-signed VersionedTransaction.
                wallet:
                  type: string
                  description: >-
                    Caller wallet (base58). Must match the transaction's fee
                    payer.
                priorityFee:
                  type: integer
                  description: |
                    Optional priority-fee override in micro-lamports. If
                    omitted the platform applies its default policy.
      responses:
        '200':
          description: Accepted
          content:
            application/json:
              schema:
                type: object
                properties:
                  signature:
                    type: string
                    description: Base58 transaction signature.

````