# Standardize and correct the address input

Source: https://developer.avalara.com/address-validation/hjc0705586333506/

# Standardize and correct the address input

**Element type**: Required

**Endpoints/Models used**: [ResolveAddressPost](https://developer.avalara.com/api-reference/avatax/rest/v2/methods/Addresses/ResolveAddressPost/)

Your integration must include the ability to standardize and correct the address that a user inputs. It should then optionally allow users to either accept or reject the suggested address.

The [ResolveAddressPost](https://developer.avalara.com/api-reference/avatax/rest/v2/methods/Addresses/ResolveAddressPost/) API handles standardizing addresses. Your back-end environment must handle the ability to accept or reject the address.

**View an example**:

```
curl
  -X POST 'https://sandbox-rest.avatax.com/api/v2/addresses/resolve'
  -H 'Accept: application/json'
  -H 'Authorization: Basic ${btoa(`:`)}'
  -H 'Content-Type: application/json'
  --data '{
     "line1": "2000 Main Street",
     "textCase": "Upper",
     "city": "Irvine",
     "region": "CA",
     "country": "US",
     "postalCode": "92614"
  }'
```