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Join Slack CommunityBoost Your Users' Outreach Success with Multi-Channel Communication
Enhance your sales engagement software by providing users with seamless LinkedIn, WhatsApp, and email integration through Unipile's API.
Michel OpraVP Operations, NexaTech
Sequence 1
Michel Opra, 4:35 PM
Help Your Users Work Smarter with Advanced Features
Add value to your engagement tool by integrating smart functionalities that help your users find the right contacts, communicate across channels, and manage their daily workflows more efficiently.
Integrated LinkedIn Search to help your users find the right contacts
Let your users search and filter LinkedIn profiles directly from your platform to identify relevant contacts by industry, location, job title, and relationship level.
Advanced filters by industry, role, location, relationship, and keywords
Save contacts to your CRM or sales pipeline for personalized follow-ups
Up-to-date profiles with synced data to keep contact information accurate
Robert FoxCureCorpCEO
Julia ChenMedicoCEO
Lucas MeyerVitalPathCEO
Anna RossiHealthCoCEO
Victor HarrisMediLifeCEOUnipile is an independent technical intermediary, not affiliated with, endorsed by, or sponsored by LinkedIn. Searches run from the authenticated user's own account, and contact details appear only when the member shares them.
Send LinkedIn, Email, and WhatsApp Directly from Your Platform
Enable your users to launch multi-channel campaigns from your platform. Invitations, InMails, personalized emails, and follow-ups, all orchestrated from a single integration.
Build and Customize LinkedIn Campaigns
Empower your users to choose and build campaigns tailored to their engagement strategy: simple invitations, invitations with personalized messages, or InMails for greater engagement.
Mery YardEmail thread
Extend Campaigns with Integrated Email
Build personalized email campaigns by selecting from direct emails, follow-ups, or final emails. Messages are sent on behalf of your users from their own Gmail, Outlook, or IMAP mailboxes, which keeps an authentic sender identity and the best deliverability rate.
Daniel MartinezonlineReach Prospects on WhatsApp
Add WhatsApp to your multi-channel sequences and let your users send personalized messages and follow-ups straight from your platform. Conversations are handled through their own linked WhatsApp account, on their behalf, for a direct and trusted channel.
Unipile is an independent technical intermediary, not affiliated with, endorsed by, or sponsored by LinkedIn. Each action runs on behalf of the authenticated user.
Centralizing and Managing Responses
Allow your users to centralize all responses from ongoing campaigns, making response management more efficient. Enable halting automated sequences based on user interactions and simplifying response handling.
Email
WhatsApp
Michel OpraThat sounds promising.
Sofia RiveraThanks, see you on Monday.Daniel MartinezWhen can we talk?
Michel OpraRepliedmessage_receivedSequence stopped for MichelCentralize Responses into a Unified Inbox
Enable users to consolidate responses from multiple channels, such as LinkedIn, email (Gmail, Outlook, IMAP), and WhatsApp, into a single, organized view.
Automate Sequence Stop Rules
With an integrated inbox, set automated rules to stop follow-ups or campaign sequences for contacts who reply, enhancing professionalism and improving response rates.
Integrated Calendar Sync to Convert Prospects Faster
Embed scheduling directly into your engagement workflows. Automate calendar invites as soon as a prospect replies. No manual back-and-forth, no app switching.
Sarah Brown, Sales Manager
MOMichel Opra, Media Buyer
Smart Meeting Trigger from Reply
Detect a positive reply in LinkedIn, WhatsApp or email and automatically trigger a calendar invite, no need for manual follow-up.
Unified Scheduling Across Channels
Let reps propose availability in cold emails, LinkedIn messages, or WhatsApp. Connect Google and Outlook calendars for real-time syncing of available slots.
Programmatic Event Creation
Create, update, or cancel meetings directly from your platform. Attach context (contact, campaign, message ID) for full traceability.
Manage Multi-Account Access Seamlessly
Let your users handle multiple email and LinkedIn accounts from one centralized platform. Whether managing personal accounts, team accounts, or acting on behalf of colleagues, provide a seamless experience from a single access point.
Sarah BrownGmailLinkedOutlookLinkedWhatsAppLinkedCentralized Multi-Account Control
Users can connect Gmail, Outlook, LinkedIn, and other accounts into one interface, streamlining their daily workflow and eliminating the need to switch between platforms.
Sales team inboxSend Messages Across Accounts
Enable users to communicate from different accounts, ensuring personalized engagement while respecting activity limits and platform guidelines.
Delegate and Act On Behalf
Support actions like scheduling follow-ups or sending messages on behalf of teammates, ensuring continuity and collaboration across the team.
Build Custom Multi-Channel Sequences for Your Users
Enable your software to offer fully customizable multi-channel sequences. Your users can build and coordinate actions like sending LinkedIn invitations, emails, and WhatsApp messages, all within your platform. Deliver a seamless workflow to streamline communication and maximize engagement.
Email Follow-up3 DaysWhatsApp Reminder2 DaysSend a message
Send an email
Send an email
Send an email
Build Personalized Targeted Campaigns
Learn more about sequence setup in our documentation.
Offer Sending Limit Management
Allow your users to manage daily limits for emails, LinkedIn messages, and comments, helping them ensure safe and effective campaign execution while respecting platform guidelines.
Provide detailed analytics and actionable insights to help your users optimize their campaigns while staying within each platform's limits.
Email Open Rate22%WhatsApp Response Rate59%Emails65/dayRamp-up doneSupport a Gradual Ramp-Up for New Accounts
Let users increase activity on a new account step by step, with progress tracking, so their usage stays within the limits each platform sets.
Unipile is an independent technical intermediary acting on behalf of each authenticated user, not affiliated with LinkedIn: the cadence of activity remains the customer's responsibility, within the limits each platform sets.
Your Extension Captures. Your Engagement Tool Enriches.
While your extension interacts with users on LinkedIn, Unipile's API works in the background to enrich profiles, route data securely and trigger follow-up actions inside your platform, all without exposing sensitive API keys.
Extension Captures
Your Chrome extension detects the active LinkedIn profile and sends structured data to your secure backend via Unipile's API.
API Enriches Securely
Unipile processes the data server-side, enriching profiles and resolving contact info without leaking credentials to the browser.
Your Tool Takes Action
Enriched data lands directly in your engagement tool. Add to sequences, send InMails, trigger follow-ups, all from one unified interface.
Michel Opra
VP of Operations at Nexatech
Operations leader with 12+ years of experience driving efficiency in tech companies.
Michel OpraVP of Operations at NexatechSyncedEmailSend a personalized email
InMailSend a LinkedIn InMail
WhatsAppSend a WhatsApp message
Every action runs on behalf of the authenticated user, from their own linked account. Contact details appear only when the member shares them.
Start Building in Minutes
Integrate LinkedIn messaging, profile enrichment and calendar sync into your engagement tool with a few API calls. REST endpoints, official SDKs and full documentation ready to go.
Create your API key
Sign up and generate credentials from the Unipile dashboard in seconds.
Connect a LinkedIn account
Use the hosted auth flow or embed it directly in your CRM UI.
Call the Messaging API
Send messages, retrieve threads, sync inbox, attach files, all via REST.
Receive webhooks
Get notified in real-time when prospects reply, accept invitations or open emails.
/ Acme / Engagement toolSarah Brownacc_3Kd9WpOperationalSarah Brownacc_9Tx4RbOperationalTom Kelleracc_5Nv1QeOperationalTom Kelleracc_2Gy8ZcReconnectOptimize Your Integration with Experts Support
Whether you're starting from scratch or already have a system in place, our integration process is made to get you live fast.
Built-In Security and Compliance
Enterprise-grade protection for your data and workflows Learn more about our security
Multi-Channel Engagement FAQ
Everything you need to know about adding multi-channel engagement capabilities to your platform
Unipile provides a unified API covering LinkedIn (Classic, Recruiter, Sales Navigator), Email (Gmail, Outlook, IMAP), WhatsApp, Telegram, and Instagram. Your users can send messages, invitations, InMails, and emails across all these channels from a single integration.
You build the sequence logic on your side, Unipile handles the execution. Your platform defines the steps (LinkedIn invitation, follow-up email, WhatsApp message), timing, and conditions. Unipile's API sends each action on behalf of your authenticated users, respecting platform rate limits and guidelines. When a prospect replies, webhooks notify your system in real time so you can pause or adjust the sequence.
Your platform sets the pace. You can configure daily limits per account for LinkedIn invitations, messages, comments, and emails, and show users their activity against those limits. Unipile is an independent technical intermediary acting on behalf of each authenticated user, not affiliated with LinkedIn: the cadence of activity remains the customer's responsibility, within the limits each platform sets.
Yes. Unipile's API lets you aggregate all incoming messages, whether from LinkedIn, Gmail, Outlook, WhatsApp, or other connected channels, into a single unified inbox within your application. You receive real-time webhooks for every new message, enabling you to build reply detection, sequence stop rules, and conversation threading across all channels.
If you've already integrated a messaging provider, you can add multi-channel capabilities in 1 to 2 days. From scratch, expect 4 to 10 days depending on your team. Our documentation covers every endpoint with code examples, and our support team is available via Slack and live chat during integration.
Yes. Each of your users can connect multiple accounts (LinkedIn, Gmail, Outlook, WhatsApp) through Unipile's hosted authentication flow. Your platform can then act on behalf of any linked account, enabling team-based engagement, account switching, and delegation, all from a single API integration.
Absolutely. Unipile's Calendar API connects Google Calendar and Outlook Calendar. You can programmatically create, update, or cancel meetings directly from your platform. Combine it with reply detection to automatically trigger calendar invites when a prospect responds positively, no manual back-and-forth needed.
Yes. Unipile is GDPR compliant and SOC 2 certified. All data is processed securely with encryption in transit and at rest. We act as a technical intermediary on behalf of your authenticated users, meaning data flows through secure, auditable channels. Please contact us if you require audit reports or additional security documentation.
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