The Poland SMS Sender API supports various authentication mechanisms, including API keys, OAuth tokens, and HMAC authentication, ensuring secure access to the API endpoints.

The API provides comprehensive delivery status tracking, including statuses such as "Sent," "Delivered," "Failed," and "Pending," allowing developers to monitor the delivery progress of each message.

Yes, developers can send both plain text and Unicode messages through the API. Unicode support enables sending messages in languages with non-Latin characters, ensuring compatibility with diverse audiences.

Absolutely, the API supports message personalization through dynamic content insertion, allowing developers to customize messages with recipient-specific information such as names, account details, or transactional data.

The API implements robust security measures, including encryption protocols (such as TLS/SSL) for data transmission and storage, ensuring end-to-end security and compliance with industry standards and regulations.

The Poland SMS Sender API returns data related to the status of sent messages, including delivery confirmations and error messages. Each response provides insights into whether the message was sent, delivered, or failed.

Key fields in the response data include "status" (indicating delivery status), "messageId" (unique identifier for the message), and "error" (providing details if the message failed to send).

The response data is structured in JSON format, with key-value pairs that detail the message status, identifiers, and any error messages. This structure allows for easy parsing and integration into applications.

The POST Sender endpoint accepts parameters such as "sender" (name of the sender), "recipient" (mobile number), "content" (message body), "type" (marketing or transactional), and "webUrl" (for webhook notifications).

Users can customize their requests by specifying the "type" parameter to choose between marketing and transactional messages, and by personalizing the "content" field with recipient-specific information.

Typical use cases include sending promotional offers, transactional notifications like order updates, appointment reminders, and implementing two-factor authentication (2FA) for enhanced security.

Data accuracy is maintained through regular updates and monitoring of message delivery statuses. The API employs robust error handling to provide feedback on failed messages, allowing users to address issues promptly.

Standard data patterns include a clear indication of message status (e.g., "Delivered," "Failed"), along with relevant identifiers. Users can expect consistent formatting, making it easy to track and analyze message performance.

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To give you the opportunity to experience our APIs without any commitment, we offer a 7-day free trial that allows you to make up to 50 API calls at no cost. This trial can be used only once, so we recommend applying it to the API that interests you the most. While most of our APIs offer a free trial, some may not. The trial concludes after 7 days or once you've made 50 requests, whichever occurs first. If you reach the 50 request limit during the trial, you will need to "Start Your Paid Plan" to continue making requests. You can find the "Start Your Paid Plan" button in your profile under Subscription -> Choose the API you are subscribed to -> Pricing tab. Alternatively, if you don't cancel your subscription before the 7th day, your free trial will end, and your plan will automatically be billed, granting you access to all the API calls specified in your plan. Please keep this in mind to avoid unwanted charges.

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When you subscribe to an API free trial, you can make up to 50 API calls. If you wish to make additional API calls beyond this limit, the API will prompt you to perform an "Start Your Paid Plan." You can find the "Start Your Paid Plan" button in your profile under Subscription -> Choose the API you are subscribed to -> Pricing tab.

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