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Base URL

All API requests are made to: 
https://api.interactsms.com/api/v2

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Authentication

Authenticate by first obtaining an access token from: 
https://auth.interactsms.com/token
Then include the access token in the Authorization header on every API request: 
Authorization: Bearer YOUR_ACCESS_TOKEN

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Request format

All request bodies should be JSON with Content-Type: application/json.

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Response codes

CodeMeaning
200OK — request succeeded
201Created — resource created successfully
400Bad Request — invalid parameters
401Unauthorized — invalid or missing access token
422Unprocessable Entity — validation error
429Too Many Requests — rate limit exceeded
500Internal Server Error
Last modified on April 9, 2026