Unipile
Unified REST API for multi-channel messaging, email, and calendars — LinkedIn, WhatsApp, Instagram, Telegram, Gmail, Outlook, and IMAP behind one integration
Overview
Unipile is a unified communication API that puts messaging, email, and calendar providers behind a single REST interface. Its official positioning is "One API for Multi-Channel Messaging in your app," and it covers a channel mix most unified-API vendors do not touch: LinkedIn, WhatsApp, Instagram, and Telegram alongside Gmail, Outlook, and generic IMAP, plus Google and Outlook calendars. Applications authenticate on behalf of real end users through hosted, white-label-compatible auth pages, then read and write across every connected account using the same endpoints — the calling code stays identical whether the user connected Gmail, Outlook, or IMAP.
The platform bundles the operational parts that make consumer-account access viable at scale: real-time webhooks, managed proxies and rate limiting for account protection, unified inbox sync, and profile data enrichment. Its typical buyers are ATS, CRM, and outreach software publishers, sales-enablement products, and AI agent builders that need to act inside a user's real inboxes and social messaging rather than send from a shared corporate sender.
The Verdict
Who Should Use Unipile?
Best For
- ATS, CRM, and sales-outreach products where LinkedIn or WhatsApp messaging is a first-class feature
- AI agents that need to read and send from a user's real inbox and social DMs
- Teams that want predictable per-seat costs instead of per-API-call metering
- Products needing hosted, white-labeled account-connection flows
- EU-based buyers who want data hosted in France
Not Ideal For
- Teams needing HIPAA or ISO 27001 attestations for regulated workloads
- Products that only need email and calendar — narrower vendors may cost less
- Buyers uncomfortable with the account-restriction risk of automating LinkedIn and WhatsApp
- Non-technical teams wanting a finished outreach product rather than infrastructure
- Broad SaaS integration needs beyond communication channels (use Nango or Merge)
What's Great
- Channel breadth no email-only unified API matches — LinkedIn, WhatsApp, Instagram, Telegram plus email and calendar
- Per-connected-account pricing with unlimited API requests, so traffic can scale without cost surprises
- Hosted authentication pages mean no OAuth or credential handling in your own app
- Managed proxies and rate limiting reduce the account-protection work you would otherwise build
- Provider-agnostic code: the same calls work for Gmail, Outlook, and IMAP
- EU-only hosting in France with Google CASA Tier II certification
Watch Out For
- Automating LinkedIn and WhatsApp runs against those platforms' terms and carries account-restriction risk for your end users
- No HIPAA or ISO 27001 certification, a real gap versus Nylas for regulated buyers
- Thin third-party review footprint — little independent validation on G2 or Capterra
- Deliberately infrastructure-only: endpoints and protection, but the product is still yours to build
- €49/month floor makes it expensive for very small deployments
- Small, seed-stage company ($1.58M raised) relative to enterprise vendors
Pricing
View all features & details
Key Features
- Unified REST API with 500+ endpoints
- Real-time webhooks for message and email events
- Hosted authentication pages (white-label compatible)
- Managed proxies and rate limiting
- Unified inbox with real-time sync
- Profile and company data enrichment
- Multi-channel outreach sequences
- LinkedIn profiles, posts, and invitations
Supported Channels
- Messaging: WhatsApp, LinkedIn, Instagram, Telegram
- Email: Gmail, Outlook, IMAP
- Calendar: Google Calendar, Outlook Calendar
- Roadmap: SMS/RCS, contacts
Typical Buyers
- ATS and recruiting software publishers
- CRM and sales-enablement platforms
- Outreach and sequencing tools
- AI agent and no-code platform builders
Security & Hosting
- EU-only hosting in France
- Google CASA Tier II certification
- No HIPAA or ISO 27001 attestation
- 99.9% uptime over trailing 24 months
How It Compares
| Feature | Unipile | Nylas | Nango |
|---|---|---|---|
| Email & calendar | Yes | Yes | Yes |
| LinkedIn / WhatsApp messaging | Yes | No | Partial |
| Channel focus | Communication | Email & calendar | 800+ general APIs |
| Pricing basis | Per connected account | Per account + usage | Per connection tier |
| Open source | No | No | Yes |
| Data residency | EU (France) | US / EU | Self-host option |
| HIPAA / ISO 27001 | No | Yes | Enterprise |
| Best for | Multi-channel outreach products | Regulated email/calendar apps | Broad SaaS integrations |