SendSend
Sign up

The delivery API for
modern applications

SendSend is a high-throughput delivery engine built for modern application developers and for the cloud era.

Email
Webhooks
Get started free
Multi-channel

One API, every channel

Send through email or webhooks with the same unified API. Configure routing, rate limits, and retries per channel.

Email

Transactional and marketing emails with smart rate limiting, provider failover, and deliverability tracking built in.

Webhooks

Deliver events to any HTTP endpoint with retries, signature verification, and real-time delivery status callbacks.

Made for the cloud

The global
delivery network

Global Edge Delivery

Enable low-latency delivery from edge nodes closest to your users.

Smart Rate Limiting

Per-provider rate limits prevent overwhelming downstream APIs.

Monitoring & Alerts

Monitor health with key metrics or integrate third-party tools.

Developer-first

Built by developers,
for developers

Rich and expressive API that allows you to configure rate limits, retries, and routing rules per destination — no matter how complex.

const config = {
  name: "stripe-webhooks",
  endpoint: "https://api.stripe.com/v1/events",
  rateLimit: {
    maxPerSecond: 100,
    strategy: "sliding-window",
  },
  retry: {
    maxAttempts: 5,
    backoff: "exponential",
    initialDelay: "1s",
  },
  timeout: "30s",
  headers: {
    Authorization: "Bearer sk_live_...",
    "Content-Type": "application/json",
  },
};

await sendsend.configs.create(config);
Use SendSend with your stack
We offer client and server libraries in everything from React and Ruby to iOS.
Try plug & play options
Customize and deploy delivery infrastructure directly from the SendSend Dashboard.
Explore pre-built integrations
Connect SendSend to over a hundred tools including Stripe, Salesforce, or Quickbooks.
Security & privacy
SendSend supports PII data encrypted with AES-256 at rest or explicit user consent flows.
Security at Scale

Architected for speed and reliability

SendSend’s innovative architecture avoids the central bottlenecks of traditional systems, enhancing system reliability. This design ensures high throughput and security, minimizing the risk of service disruptions and outages.

3,000+/s
Throughput
<50ms
Avg delivery latency
Up to 9M
Items delivered / day

Get started today

Create your account and start delivering in minutes. No credit card required.

Create accountSign in