Key answers
- How long does it take to integrate an SMS API?
- For a developer familiar with REST, the Bulkit integration typically takes under 15 minutes: authentication is a single API key header, sending is one JSON POST to the /messages endpoint, and delivery status arrives via webhook callbacks.
- How do you authenticate the Bulkit SMS API?
- Pass your API key in the X-API-Key header (or as a query parameter) against base URL https://api.bulkitsms.com/v1. Single and bulk sends use the same /messages endpoint.
- How do SMS delivery reports reach my application?
- Webhook callbacks post JSON to your endpoint with the message ID, recipient, network, timestamp, and delivery status, signed with an HMAC-SHA256 signature you can verify.
Bulkit's REST API was designed with developer experience as the primary constraint. Authentication is a single API key header. Message submission is a JSON POST. Delivery status arrives via webhook callbacks.
The API supports single-recipient and bulk submissions in the same endpoint. Supply a recipient array, set your sender ID, and optionally attach custom merge variables for personalization — all in one request.
Webhook callbacks deliver real-time delivery receipts to your server endpoint. Each callback includes the message ID, recipient, network, timestamp, and delivery status — giving your application full visibility into message state.
- Base URL: https://api.bulkitsms.com/v1
- Authenticate via X-API-Key header or query parameter.
- Single and bulk sends use the same /messages endpoint.
- Supported languages: Python, PHP, Node.js, Go, Ruby, and cURL examples.
- Webhook payloads are JSON with HMAC-SHA256 signature verification.
Integration typically takes under 15 minutes for developers familiar with REST APIs. The documentation includes interactive request builders so you can test payloads directly from the browser.
Start with a free Bulkit account — your first 20 messages are complimentary, giving you space to test and validate your integration before going live.
