If your company needs instant and scalable information for contacts, we have you covered. By choosing our safe, encrypted services, you can add thousands of emails to be matched right away and have more data appended. Our Reverse Email Batch API USA takes incomplete lists and missing contact entries and fills them with information we can rely on.
Real-Time Matching
Scalable Requests
Secure Transfer
High Accuracy
Our system links every email you send to real names, addresses and phone numbers.
With Append and Export, you can get spotless, well-organized contacts which you can use right away in your CRM or email marketing.
FastAppend gives users an Address Batch API that can help clean, confirm or expand addresses within large batches of data. With the help of this tool, businesses are able to keep their postal addresses accurate which improves how correctly their mail is delivered and their relationships with customers.
Updating your mailing lists or adding information to your old CRM system is easy and reliable with our Address Batch API.
Please allow us to guide you with your integration. Talk to our team at no cost and discover how FastAppend can take your data to the next level.
Make your data do more for you. Turn to FastAppend—your top supplier for complex batch tasks and immediate processing.
With our Reverse Email Batch API, you can process thousands of email addresses in one go. Whether you're enriching your CRM or verifying contact records, our API performs high-volume matches quickly and reliably, delivering precise results with minimal turnaround time.
Beyond just basic contact details, our API helps you uncover the full picture. Gain access to names, phone numbers, and mailing addresses—so you can build more meaningful connections, power multi-channel marketing, and improve customer segmentation effortlessly.
The Reverse Email Batch API allows you to upload or send batches of email addresses and receive appended contact data, such as full names, phone numbers, and mailing addresses—all delivered at scale and with high accuracy.
Our API is designed to handle large volumes efficiently. You can process thousands—even millions—of email addresses in a single batch, depending on your subscription and technical integration.
The API returns matched data including full name, postal address, phone number, and other optional demographic attributes, helping you enrich your customer records and improve campaign targeting.
Yes, we prioritize data privacy and compliance. All data is sourced from reputable providers, and our API operates over secure HTTPS with strict adherence to industry regulations such as GDPR and CCPA.
Reach out to us for accurate data solutions that drive better results.
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