> ## Documentation Index
> Fetch the complete documentation index at: https://chainstack-docs-polygon-erigon-trace-deprecation.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# addressBook | TON v3

> The addressBook endpoint retrieves information about a specific address from the TON blockchain's address book. TON v3 via Chainstack.

The `addressBook` endpoint retrieves information about a specific address from the TON blockchain's address book. This can be useful for identifying known entities or contracts on the network.

<Note>
  **TON billing: full (1 RU)**

  This method is always billed as full. See [Request units — TON method scope](/docs/request-units#ton-method-scope).
</Note>

## Parameters

* `address` (string, required) — The address to look up in the address book. This should be a raw address format. Example: `0:ed1691307050047117b998b561d8de82d31fbf84910ced6eb5fc92e7485ef8a7`.

## Response

* `name` (string) — The name associated with the address, if available.
* `description` (string) — A description of the address or the entity it represents.
* `icon` (string) — URL of an icon associated with the address or entity.
* `website` (string) — Website associated with the address or entity.
* `address` (string) — The queried address, confirming the lookup.

## Use case

The `addressBook` endpoint can be used in various scenarios:

1. Wallet applications can use it to display human-readable names and descriptions for known addresses.
2. Block explorers can enhance their UI by showing additional information about significant addresses.
3. DApps can use it to verify if they're interacting with known, trusted contracts or entities.


## OpenAPI

````yaml openapi/ton_node_api/v3/getAddressBookInfo.json GET /addressBook
openapi: 3.0.0
info:
  title: TON API
  version: 3.0.0
  description: API for interacting with The Open Network (TON) blockchain
servers:
  - url: >-
      https://ton-mainnet.core.chainstack.com/f2a2411bce1e54a2658f2710cd7969c3/api/v3
security: []
paths:
  /addressBook:
    get:
      tags:
        - Blockchain
      summary: Get Address Book Information
      description: Retrieves information about an address from the address book
      operationId: getAddressBookInfo
      parameters:
        - name: address
          in: query
          description: The address to look up in the address book
          required: true
          schema:
            type: string
            default: 0:ed1691307050047117b998b561d8de82d31fbf84910ced6eb5fc92e7485ef8a7
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                type: object
                properties:
                  name:
                    type: string
                    description: The name associated with the address
                  description:
                    type: string
                    description: A description of the address or associated entity
                  icon:
                    type: string
                    description: URL of an icon associated with the address
                  website:
                    type: string
                    description: Website associated with the address
                  address:
                    type: string
                    description: The queried address

````