NewHow the Agent Session Protocol builds trust between autonomous systems.
Solution

SaaS notification delivery

Every customer receives every notification. Every time.

You ship a notification feature.

It works on day one.

Then a customer endpoint goes down.

Events pile up. Others slow down.

Your team builds retry logic.

Then verification. Then rate limiting.

Six months gone. Still fragile.

npayload handles all of it from day one.

See how it flows

Send once, deliver everywhere

One event. npayload delivers it to every customer independently. If one customer is slow, the others are not affected.

Billing API42ms
Shipping Service38ms
Analytics51ms
Notification Hub29ms

Automatic recovery

If a customer system goes down, npayload holds the events and delivers them all when it comes back. Nothing is lost.

Delivery Attempts
1
POST /webhook
503
retry
+0s
2
POST /webhook
503
retry
+2s
3
POST /webhook
503
retry
+8s
4
POST /webhook
200
delivered
+32s
Exponential backoff. Never lost.

Verified sender

Every delivery is verified to come from you. Your customers know it is authentic without any extra work.

Delivery Proof
api.acme.com/hooks200
sha256=a3f8...14:22:08
events.partner.io200
sha256=7e2b...14:22:09
hooks.client.dev200
sha256=b91c...14:22:09

Ready made tools

Your developers get started in minutes with tools for the most popular development environments.

Adapters
Kafka
SQS
Pub/Sub
EventBridge
Azure SB
SNS
HTTP
RabbitMQ
Keep what you have. Add what you need.

How it works

1

Send once

Your system publishes one event. npayload takes it from there.

2

npayload delivers to every subscriber

Each customer receives the event independently. If one customer is slow, the others are not affected.

3

Failed deliveries recover automatically

If a customer system goes down, npayload holds the events. When it comes back, everything is delivered. Nothing is lost.

SaaS Event Delivery: Before and After

Without npayload

  • Webhook delivery fails silently and customers lose trust in your platform
  • Building reliable delivery with retries and monitoring takes months of engineering
  • No way to know if a customer actually processed your event
  • Each new customer integration requires custom delivery logic
  • Scaling event delivery during traffic spikes means over provisioning infrastructure

With npayload

  • Every event delivery is tracked with proof of receipt and processing confirmation
  • Reliable delivery with retries, circuit breakers, and DLQ out of the box
  • Report messages confirm that customers received and processed your events
  • One integration serves every customer with automatic fan out
  • npayload scales delivery automatically, even during peak traffic

npayload vs Building Event Delivery Yourself

FeaturenpayloadBuild it yourself
Delivery reliabilityGuaranteed delivery with automatic retries and circuit breakersCustom retry logic that breaks under edge cases
Delivery proofCryptographic proof of delivery with report messagesBest effort logging, no proof for disputes
Fan outNative multi subscriber delivery with consumer groupsCustom pub/sub layer per integration
Failure handlingDLQ with automatic routing, inspection, and replayLost events or manual database queries
ScalabilityAutomatic scaling across cells with no configurationCapacity planning, load testing, and over provisioning
Time to integrateSDK integration in hours3 to 6 months to build, then ongoing maintenance

Frequently asked questions

How does npayload guarantee event delivery?+
npayload uses durable storage, automatic retries with exponential backoff, circuit breakers for unhealthy endpoints, and a dead letter queue for events that cannot be delivered. Every event is tracked until confirmed received.
Can my customers choose how they receive events?+
Yes. Customers can subscribe via webhooks, server sent events, polling, or SDKs. npayload handles the delivery mechanics for each method automatically.
What happens during a traffic spike?+
npayload's cell architecture scales horizontally. Events are queued and delivered as fast as your customers' endpoints can accept them, with backpressure to protect both sides.
How do I know if a customer processed my event?+
npayload supports report messages. When a customer processes an event, their acknowledgment flows back through npayload so you have confirmation, not just delivery proof.