Relay Features

The world's fastest real-time communication platform. Engineered by Stantia Labs for enterprises that demand 2 billion packets per second.

Relay Core Capabilities

🌐 Multi-Protocol Support

21 application protocols on one platform — IoT, industrial, messaging and agent protocols, with no gateway translation layer in between.

  • ✓ MQTT v3.1.1 / v5.0, MQTT-SN and CoAP
  • ✓ AMQP, STOMP, NATS and gRPC
  • ✓ Industrial: Modbus, OPC UA, DDS/RTPS, SNMP
  • ✓ HTTP/2, HTTP/3 and WebRTC DataChannel

⚡ Ultra-Low Latency

Sub-millisecond message delivery with deterministic latency guarantees across global regions.

  • ✓ 6.5ms p99 latency
  • ✓ Global edge network
  • ✓ Predictable performance
  • ✓ No cold starts

📈 Massive Scale

Handle millions of concurrent connections and billions of messages with automatic scaling.

  • ✓ 10M+ concurrent connections
  • ✓ Billions of messages/month
  • ✓ Elastic auto-scaling
  • ✓ Zero downtime deployments

🔗 Transport Layer

Nine transports under one API, from raw TCP to kernel-bypass XDP. Pick the one your network and your hardware call for.

  • ✓ TLS 1.3 and DTLS 1.3, implemented in-house
  • ✓ QUIC with datagrams and multipath
  • ✓ WebSocket and WSS
  • ✓ AF_XDP kernel bypass with eBPF

🤖 AI Agent Protocols

Agent transports are first-class here, not an SDK afterthought. Relay speaks the emerging agent standards natively.

  • ✓ MCP — 15 methods with SSE streaming
  • ✓ Google A2A — AgentCard and task lifecycle
  • ✓ ACP — agent descriptors and run lifecycle
  • ✓ Agent Mesh — sub-millisecond native coordination

🔒 Enterprise Security

Bank-grade encryption, compliance certifications, and security-first architecture.

  • ✓ End-to-end encryption
  • ✓ HIPAA & GDPR compliant
  • ✓ Data residency control

One platform, every wire format

Relay implements 9 transports and 21 application protocols directly — no gateway sidecars, no translation layer, no per-protocol licence.

Transports

How bytes move: stream, datagram, encrypted and kernel-bypass paths.

  • TCP
  • TLS 1.3
  • DTLS 1.3
  • WebSocket
  • WSS
  • QUIC
  • CoAP / DTLS
  • UDP
  • XDP

IoT & messaging protocols

Device, industrial and broker protocols, parsed natively.

  • MQTT v3.1.1 / v5.0
  • CoAP
  • MQTT-SN
  • DNS
  • Modbus
  • SNMP
  • STOMP
  • AMQP
  • NATS
  • gRPC
  • WebSocket
  • OPC UA
  • DDS / RTPS
  • HTTP/2
  • HTTP/3
  • WebRTC

AI agent protocols

The emerging agent standards, plus Relay's own mesh.

  • JSON-RPC 2.0
  • MCP
  • A2A
  • ACP
  • Agent Mesh

Every protocol and every transport is available on every plan, including Free. See the full matrix with status and specs →

Real-Time Data Processing

🔄

Stream Processing

Process incoming data streams with SQL-based rules, transformations, and enrichment in real-time.

📊

Data Aggregation

Aggregate data from multiple sources, compute time-series analytics, and generate insights instantly.

🎯

Routing & Filtering

Intelligent message routing, conditional delivery, and rule-based filtering without custom code.

Developer-First Platform

Comprehensive SDKs

Official SDKs for JavaScript, React, Python, Java, Go, Kotlin, Swift, Objective-C, Flutter, and more.

Supported Platforms:

JavaScriptTypeScriptReactReact NativePythonJavaGoRustSwiftKotlinFlutter.NET

Rich Documentation

Complete API reference, tutorials, code samples, and interactive examples for every use case.

→API Reference
→Quick Start Guides
→Code Examples
→Best Practices
→Troubleshooting
→FAQ

Pre-Built Integrations

AWS Lambda

Azure Functions

Google Cloud

Webhooks

Kafka

Snowflake

Datadog

Slack

Zapier

Make

IFTTT

Custom API