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

# List Supported Chains

> Returns all supported chains with their tokens and capabilities.



## OpenAPI

````yaml GET /transfer/chains
openapi: 3.1.0
info:
  title: Zet API
  description: >
    The Zet API enables businesses to integrate smart on/off ramp, token swap,
    and cross-chain transfer capabilities into their applications.


    Built on ERC-4337 smart accounts with gas-sponsored transactions, Zet
    handles the complexity of blockchain interactions so you can focus on your
    product.


    ## Base URL


    ```

    https://api.zet.money/v1

    ```


    ## Authentication


    All requests must include your API key in the `x-api-key` header. Contact
    [zetdotmoney@gmail.com](mailto:zetdotmoney@gmail.com) to obtain your API
    keys.


    ## Rate Limits


    - **60 requests per minute** per API key (default)

    - Rate limit headers are included in every response

    - Contact us for higher limits
  version: 1.0.0
  contact:
    name: Zet Support
    url: https://zet.money/support
    email: support@zet.money
  license:
    name: Proprietary
servers:
  - url: https://api.zet.money/v1
    description: Production
  - url: https://api-staging.zet.money/v1
    description: Staging
security:
  - apiKey: []
tags:
  - name: Wallets
    description: Create and manage smart wallets for your users
  - name: On-Ramp
    description: Buy crypto with Nigerian Naira (NGN)
  - name: Off-Ramp
    description: Sell crypto for Nigerian Naira (NGN)
  - name: Swap
    description: Swap tokens on the same chain or across chains
  - name: Cross-Chain Transfer
    description: Transfer tokens across different blockchains
  - name: Webhooks
    description: Register webhook URLs to receive async event notifications
  - name: Transactions
    description: Query transaction history and details
paths:
  /transfer/chains:
    get:
      tags:
        - Cross-Chain Transfer
      summary: List supported chains
      description: Returns all supported chains with their tokens and capabilities.
      operationId: listChains
      responses:
        '200':
          description: Supported chains and tokens.
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    example: true
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/ChainInfo'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    ChainInfo:
      type: object
      properties:
        chain:
          $ref: '#/components/schemas/Chain'
        chainId:
          type: integer
          example: 8453
        name:
          type: string
          example: Base
        type:
          type: string
          enum:
            - primary
            - destination
          description: >-
            `primary` chains support full wallet operations. `destination`
            chains support receiving cross-chain transfers.
        explorerUrl:
          type: string
          format: uri
          example: https://basescan.org
        tokens:
          type: array
          items:
            $ref: '#/components/schemas/SwapToken'
    Chain:
      type: string
      enum:
        - base
        - bsc
        - ethereum
        - polygon
        - arbitrum
        - avalanche
        - solana
      description: Blockchain network identifier
    SwapToken:
      type: object
      properties:
        symbol:
          type: string
          example: USDC
        name:
          type: string
          example: USD Coin
        contractAddress:
          type: string
          example: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'
        decimals:
          type: integer
          example: 6
        chain:
          $ref: '#/components/schemas/PrimaryChain'
        logoUrl:
          type: string
          format: uri
          example: https://assets.zet.money/tokens/usdc.png
    Error:
      type: object
      required:
        - success
        - error
      properties:
        success:
          type: boolean
          example: false
        error:
          type: object
          required:
            - code
            - message
          properties:
            code:
              type: string
              example: INVALID_REQUEST
            message:
              type: string
              example: The 'amount' field is required.
    PrimaryChain:
      type: string
      enum:
        - base
        - bsc
      description: Primary chains where Zet-managed wallets operate
  responses:
    Unauthorized:
      description: Missing or invalid API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
          example:
            success: false
            error:
              code: UNAUTHORIZED
              message: Invalid API key.
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: x-api-key
      description: Your Zet API key. Contact zetdotmoney@gmail.com to obtain your keys.

````