One API.
Any Channel. Any Provider.
Your Rules.

Stop managing multiple messaging providers. OneSend2U gives you a single API to send SMS, Email, WhatsApp, etc. through any provider — with configurable provider routing, cost visibility, and zero vendor lock-in.

// Send via any provider with one call
POST /api/app/notifications/send
{
  "transactionId": "tx-abc-001",
  "application": "shop",
  "region": "ES",
  "language": "es",
  "notificationType": "orders",
  "notificationSubtype": "confirmation",
  "recipients": [
    { "channel": "sms", "recipient": "+34612345678" },
    { "channel": "whatsapp", "recipient": "+34612345678" },
    { "channel": "email", "recipient": "maria@shop.com" }
  ],
  "templateVariables": [
    { "orderId": "12345" }
  ]
}
// Send via any provider with one call
await client.Notifications.SendAsync(new SendNotificationRequest
{
  TransactionId = "tx-abc-001",
  Application = "shop",
  Region = "ES",
  Language = "es",
  NotificationType = "orders",
  NotificationSubtype = "confirmation",
  Recipients =
  [
    new() { Channel = Channel.Sms,      Recipient = "+34612345678" },
    new() { Channel = Channel.WhatsApp, Recipient = "+34612345678" },
    new() { Channel = Channel.Email,    Recipient = "maria@shop.com" }
  ],
  TemplateVariables = [new() { ["orderId"] = "12345" }]
});
POST /api/app/notifications/send
{ "application": "shop", "region": "ES", "recipients": [...] }

One integration. Every provider.

Adding a new SMS, Email or WhatsApp provider usually means another SDK, another contract, another dashboard and another webhook format to maintain. OneSend2U collapses all of that into a single integration layer.

Without OneSend2U

  • Separate Twilio, Infobip, SendGrid, Meta, etc. integrations
  • Multiple dashboards, webhooks and credentials
  • Code changes every time you swap a provider
  • Cost split across opaque vendor invoices
  • No unified consent, audit or delivery view
  • Each app re-implements the same messaging plumbing

With OneSend2U

  • One API covers SMS, Email, WhatsApp, etc.
  • Single dashboard, unified webhooks, one credential
  • Switch providers without touching application code
  • Consolidated cost view, no markup over provider fees
  • Built-in consent, audit trail and delivery tracking
  • Every app reuses the same provider-agnostic layer

How it works

One integration. Multiple providers. Automatic routing and cost visibility across every channel you use.

Send through any provider

Integrate once with the OneSend2U API. We route your SMS, Email, and WhatsApp messages through Twilio, Infobip, SendGrid, SMTP, or any configured provider — without changing a single line of your code.

Provider routing

Define routing rules per region, application, channel, notification type or subtype, etc. Set your preferred providers and switch them at runtime — no redeployment required.

See what you actually pay

Track costs by provider, channel, region, application, environment, etc. When providers report per-message pricing, you see it automatically. Full visibility into your communication spend.

One platform, every role in your messaging stack

Engineers, product teams, operations and compliance officers all work against the same notifications — but each needs different answers from them. OneSend2U gives every role the view, the controls and the data they actually need.

Developers

One SDK, typed clients, sandbox and webhooks. Ship multi-channel notifications without learning a new API per provider.

Product & Growth

Launch new notification types, iterate on content and swap channels without a release train. No engineering ticket to change a template.

Operations & Support

Live delivery visibility, searchable message history, webhook delivery logs and consolidated cost tracking per application.

Compliance & Security

Opt-in and opt-out tracked per channel, full audit trail, per-tenant isolation and data residency controls.

An enterprise-grade messaging platform

OneSend2U is built as an enterprise-grade solution from day one: a modern, event-driven architecture engineered for the reliability, security, scalability and auditability that mission-critical communications demand.

For your applications
Your Application
OneSend2U API Validate & Enqueue
Security Auth, encryption & RBAC
Message routing
Webhooks
Providers
Twilio SMS · WA · Email
Infobip SMS · WA · Email
Meta WhatsApp
SMTP Email
Any provider Any channel
User End recipient
For your users
Your Users
OneSend2U Portal Configure, Test & Analyze
Security Auth, encryption & RBAC
Message routing
Delivery tracking
Webhooks
Providers
Twilio SMS · WA · Email
Infobip SMS · WA · Email
Meta WhatsApp
SMTP Email
Any provider Any channel
User End recipient

Be among the first

OneSend2U is launching in Q2 2026. Request early access and get:

  • Priority onboarding with dedicated support
  • Direct access to the engineering team for feedback
  • Early adopter pricing locked for 12 months
Request Early Access

We'll reach out within 48 hours.