SMS API vs User API
Messaging & Communication APIs · Side-by-side API comparison
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SMS API
nexmo
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User API
vonage
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| Description | With the SMS API you can send SMS from your account and lookup messages both messages that you've sent as well as messages sent to your virtual numbers. Numbers are specified in E.164 format. More SMS… | The Vonage Business Cloud User API enables you to retrieve information about users. Your application must subscribe to the Provisioning API suite to use this API. … |
| Auth Type | No Auth | No Auth |
| Pricing | Free & Open | Free & Open |
| Uptime (7 days) | No data | No data |
| Avg Response | — | — |
| SDKs | — | — |
| Sample Requests | 1 endpoint | 2 endpoints |
| Categories | API | API Sandbox |
| Full Details | View SMS API | View User API |