Zero-persistence relay.
By architecture.

WebSocket relay with no disk, no database, and no Redis in the hot path. Your payloads are forwarded — never archived.

How it works

Client connects

Your app authenticates with an API key. The relay checks quota against your tier limits — in memory, no database query.

Messages relay

Publish to a room. Subscribers receive the event. The payload is forwarded immediately and never written to disk or database.

Period resets

At billing cycle end, aggregate counts (sessions, bytes — never content) are forwarded to the portal ledger. Relay counters reset to zero.

Zero persistence proof

ESLint rule

no-restricted-imports bans fs, @prisma/client, ioredis in the relay workspace. CI fails on violation.

strace CI

GitHub Actions runs strace on every push to apps/relay/. Fails if write syscalls are detected.

readonlyRootFilesystem

ECS Fargate container definition sets readonlyRootFilesystem: true. OS-level enforcement.

Separate binary

The relay process has no DATABASE_URL, no Prisma schema, no Chroma connection. No path to persistence.

Pricing

Tier	Price	Sessions/mo	Concurrent
Developer	Free	1,000	100	Start free →
Startup	$49/mo	25,000	500	Get started →
Growth	$199/mo	150,000	2,500	Choose Growth →
Scale	$499/mo	Unlimited	10,000	Choose Scale →
Enterprise	Custom	Dedicated	SLA	Talk to us →

AI agent ready — all tiers support agent-to-agent pub/sub. No separate pricing required.

SDK

Install the relay client from npm.

terminal

1npm install @flomisma/relay-client▋

client.ts

1import { RelayClient } from '@flomisma/relay-client'
2
3const relay = new RelayClient({
4  url: process.env.NEXT_PUBLIC_RELAY_URL!,
5  apiKey: process.env.RELAY_API_KEY!,
6})
7
8await relay.connect()
9relay.subscribe('orders')
10relay.publish('orders', 'tick', { price: 42 })▋

FAQ

Four independent layers: an ESLint rule bans fs, Prisma, and Redis imports in the relay workspace; strace CI on every push detects write syscalls; the ECS Fargate container sets readonlyRootFilesystem: true; and the relay binary has zero database dependencies — no DATABASE_URL, no Prisma schema, no connection pool.

Zero-persistence relay.By architecture.