# Lookups

## Lookup Number

**get** `/api/evaluate-service`

Determine if a phone number supports iMessage or SMS. Useful for checking if a number is an iPhone, if it is real, or which provider to use.

### Query Parameters

- `number: string`

  The number you want to evaluate in E.164 format

### Returns

- `number: optional string`

  The number you evaluated in E.164 format

- `service: optional "iMessage" or "SMS"`

  The service the number supports

  - `"iMessage"`

  - `"SMS"`

### Example

```http
curl https://api.sendblue.co/api/evaluate-service \
    -H "sb-api-key-id: $SENDBLUE_API_API_KEY" \
    -H "sb-api-secret-key: $SENDBLUE_API_API_SECRET"
```