Reply API Labs
Power up your product with business email sending capabilities to help your users scale personal communications with just a few lines of code.
AI Assistant API
Supercharge user emails with AI-backed algorithms to maximize open and reply rates
Full RESTful API
A unified API helps you integrate AI capabilities into your app.
AI Assistant is trained on 100M emails for maximum reliability.
Reply’s API integrates into your products with little to no effort.
Reply API solutions are Privacy Shield certified and GDPR compliant
Email texts generation
Create custom, human-like emails and follow-ups in seconds with built-in GPT-3 model.
Email quality check
Improve email subject line and body text to maximize engagement and response rate.
Boost your productivity by having an algorithm automatically sort through incoming emails.
Automatic opt-out via text
Detect opt-out replies to automatically stop further communication with the contact.
Meeting intent detection
Spot meeting intent in replies and streamline appointment bookings in your app.
Identify unavailable contacts and their date of return to automate communication workflow.
SPAM words detection
Increase your deliverability and avoid SPAM filters by removing trigger words from your emails.
Focus on engaged prospects with clear sales intent sorted to the ‘Interested’ folder.
Scalable API ecosystem
Get the most of email outreach with compatible Reply APIs – Email sending API, AI Assistant API
Enrich your stack with AI Assistant now
Help your users generate human-like emails in seconds and maximize open and reply rates.
Includes 24/7 help from a friendly and knowledgeable CS team.
Frequently Asked Questions
How to get started with the AI Assistant API?
What kinds of companies use Reply AI Assistant API?
How is the AI Assistant API secured?