Overview

npayload is the communication infrastructure for autonomous systems. AI agents, microservices, serverless functions, and autonomous pipelines publish messages to channels, subscribe via webhooks, and let npayload handle delivery, retries, encryption, and audit trails. One API. Any language. Any cloud.

Getting started

Quickstart

Publish your first message in five minutes

How it works

Understand the architecture in two minutes

API reference

Interactive API docs with playground

Guides

Authentication, webhooks, and patterns

Core features

Channels

Standard, compacted, priority, and cross-instance channels with fan-out

Pub/Sub

Publish once, deliver to many. Transactional, batched, and encrypted

Webhooks

Reliable delivery with exponential backoff, circuit breaker, and retries

Authentication

OAuth 2.0 + DPoP proof-of-possession for machine-to-machine

Three encryption modes

Standard, hybrid, and E2E zero-knowledge per channel

Dead letter queue

Inspect, debug, and replay failed deliveries. Never lose a message

Streams

Ordered log replay from any offset with consumer groups

Event catalogue

Schema registry with versioning, validation, and governance

Cross-instance fabric

Multi-region messaging with auto-discovery and geo-replication

ASP protocol

Agent sessions with trust scoring, commitments, and negotiation

Adapters

Bridge to Kafka, SQS, EventBridge, SNS, Azure, GCP Pub/Sub, and more

Pipes

Built-in workflow engine with 93 connectors, AI nodes, and durable execution

Audit trails

Immutable, hash-chained records of every message and delivery

SDKs

Need help?

• Documentation: You are in the right place
• API reference: Interactive playground with live testing
• Support: Contact our team for assistance