---
title: "Register address"
method: POST
path: "/address/registerCustomer"
tags: ["Address Book"]
---

# Register address

`POST /address/registerCustomer`

Registers the blockchain address of a customer in your address book.

## Request body

- RegisterCustomerInput
  - `vaspDID` string, required — Decentralized Identifier
  - `asset` union
    - string — Asset symbol (BTC,ETH)
    - CAIP19 — Object with property caip to hold the type of the asset
      - `caip19` string, required — CAIP-19 string that defines a type of asset
    - CoingeckoIdAndNetwork — Object containing coingeckoId and network of the asset
      - `coingeckoId` string, required — String that represents an asset in Coingecko
      - `network` string, required — String that represents a network in Notabene
  - `address` string, required
  - `customerRef` string, required

## Response `200`

Addess Owner is already registered?

---

[API](https://skmtc.net/notabene/apis/notabene-api.md) · [All operations](https://skmtc.net/notabene/apis/notabene-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/notabene/notabene-api/versions/70056745a433/schema)