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

# Submit a launch

> Sends the signed create transaction and waits for confirmation. The transaction must be byte for byte the one returned by `/api/launch/prepare`, plus the launcher's signature. Safe to retry with the same body.

Rate limited to 20 per minute.




## OpenAPI

````yaml /api-reference/openapi.yaml post /api/launch/submit
openapi: 3.1.0
info:
  title: Veto API
  version: 1.0.0
  description: >-
    Public API behind veto.fun. Coins, payouts, wallets, launches, trades and
    vetoes.
servers:
  - url: https://api.veto.fun
    description: Production
  - url: http://localhost:4000
    description: Local development
security: []
tags:
  - name: Platform
  - name: Coins
  - name: Payouts
  - name: Veto
  - name: Launch and trade
paths:
  /api/launch/submit:
    post:
      tags:
        - Launch and trade
      summary: Submit a launch
      description: >
        Sends the signed create transaction and waits for confirmation. The
        transaction must be byte for byte the one returned by
        `/api/launch/prepare`, plus the launcher's signature. Safe to retry with
        the same body.


        Rate limited to 20 per minute.
      operationId: submitLaunch
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - draftId
                - transaction
              properties:
                draftId:
                  type: string
                  format: uuid
                  description: The `draftId` from prepare.
                transaction:
                  type: string
                  description: The signed transaction, serialized and base64-encoded.
      responses:
        '200':
          description: The coin is live.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SubmitLaunchResponse'
        '400':
          $ref: '#/components/responses/BadRequest'
        '404':
          $ref: '#/components/responses/NotFound'
        '410':
          description: The prepared launch expired. Prepare it again.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '429':
          $ref: '#/components/responses/RateLimited'
        '504':
          description: >-
            Sent but not confirmed yet. The coin appears automatically if it
            lands.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
components:
  schemas:
    SubmitLaunchResponse:
      type: object
      required:
        - mint
        - signature
      properties:
        mint:
          type: string
        signature:
          type: string
    Error:
      type: object
      required:
        - error
      properties:
        error:
          type: string
          description: A message you can show to users as-is.
  responses:
    BadRequest:
      description: The request is invalid. The message names the field.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error: 'symbol: Ticker can only use letters and numbers'
    NotFound:
      description: Not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            error: Token not found
    RateLimited:
      description: Too many requests from this IP. Wait and retry.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'

````

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