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

# zks_getBaseTokenL1Address

> Retrieves the L1 base token address



## OpenAPI

````yaml /api-reference/openapi.json post /zks_getBaseTokenL1Address
openapi: 3.0.0
info:
  title: Abstract JSON-RPC API
  description: JSON-RPC API documentation for Abstract blockchain
  version: 1.0.0
servers:
  - url: https://api.mainnet.abs.xyz
    description: Abstract Mainnet
security: []
tags:
  - name: Overview
    description: Overview of the Abstract JSON-RPC API
  - name: Ethereum API
    description: Standard Ethereum JSON-RPC methods
  - name: ZKSync API
    description: ZKSync-specific JSON-RPC methods
paths:
  /zks_getBaseTokenL1Address:
    post:
      tags:
        - ZKSync API
      summary: zks_getBaseTokenL1Address
      description: Retrieves the L1 base token address
      operationId: zks_getBaseTokenL1Address
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
                - jsonrpc
                - method
                - id
                - params
              properties:
                jsonrpc:
                  type: string
                  default: '2.0'
                  description: JSON-RPC version
                method:
                  type: string
                  default: zks_getBaseTokenL1Address
                  description: The RPC method to be invoked
                id:
                  type: integer
                  default: 1
                  description: Request identifier
                params:
                  type: array
                  items: {}
                  default: []
                  description: No parameters required
            examples:
              example1:
                value:
                  jsonrpc: '2.0'
                  id: 1
                  method: zks_getBaseTokenL1Address
                  params: []
      responses:
        '200':
          description: Returns the Layer 1 Ethereum address of base token
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BaseTokenL1AddressResponse'
              examples:
                example1:
                  value:
                    jsonrpc: '2.0'
                    result: '0x0000000000000000000000000000000000000001'
                    id: 1
components:
  schemas:
    BaseTokenL1AddressResponse:
      $ref: 871e874b-3a6b-4a1d-8e00-fbe32c96047f

````