> ## 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.

# Undelegate Ephemeral ATA

> Build an unsigned ephemeral-rollup transaction that undelegates a wallet's ephemeral ATA (eATA) for a mint, committing its balance back toward the base layer. Accepts an optional `Authorization: Bearer <token>` header.



## OpenAPI

````yaml pages/ephemeral-spl-token/api-reference/openapi/undelegate-ephemeral-ata.openapi.json POST /v1/spl/undelegate-ephemeral-ata
openapi: 3.1.0
info:
  title: Private Payments API
  version: 0.1.0
  description: >-
    Build an unsigned ephemeral-rollup transaction that undelegates a wallet's
    ephemeral ATA for a mint.
servers:
  - url: https://payments.magicblock.app
    description: Mainnet - Private Payments API
security: []
paths:
  /v1/spl/undelegate-ephemeral-ata:
    post:
      summary: Undelegate Ephemeral ATA
      description: >-
        Build an unsigned ephemeral-rollup transaction that undelegates a
        wallet's ephemeral ATA (eATA) for a mint, committing its balance back
        toward the base layer. Accepts an optional `Authorization: Bearer
        <token>` header.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                payer:
                  type: string
                  example: 3rXKwQ1kpjBd5tdcco32qsvqUh1BnZjcYnS5kYrP7AYE
                mint:
                  type: string
                  example: EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v
                  description: SPL mint for the eATA to undelegate.
                cluster:
                  anyOf:
                    - type: string
                      enum:
                        - mainnet
                        - devnet
                    - type: string
                  example: mainnet
                  description: Optional. Cluster selector or custom http(s) RPC URL.
              required:
                - payer
                - mint
              example:
                payer: 3rXKwQ1kpjBd5tdcco32qsvqUh1BnZjcYnS5kYrP7AYE
                mint: EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v
      responses:
        '200':
          description: Unsigned serialized transaction
          content:
            application/json:
              schema:
                type: object
                properties:
                  kind:
                    type: string
                    enum:
                      - undelegateEphemeralAta
                  version:
                    type: string
                    enum:
                      - legacy
                      - v0
                  transactionBase64:
                    type: string
                  sendTo:
                    type: string
                    enum:
                      - base
                      - ephemeral
                  sendRpcEndpoint:
                    type: string
                    format: uri
                    description: >-
                      Exact ephemeral RPC endpoint where the signed undelegation
                      transaction should be submitted.
                  recentBlockhash:
                    type: string
                  lastValidBlockHeight:
                    type: integer
                  instructionCount:
                    type: integer
                    minimum: 0
                  requiredSigners:
                    type: array
                    items:
                      type: string
                required:
                  - kind
                  - version
                  - transactionBase64
                  - sendTo
                  - sendRpcEndpoint
                  - recentBlockhash
                  - lastValidBlockHeight
                  - instructionCount
                  - requiredSigners
        '400':
          description: Build error
        '422':
          description: Validation error
      security:
        - bearerAuth: []
        - {}
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: Token obtained from the `/v1/spl/login` flow.

````