GoPython & Node.js SDKs in progress Write the handler once.
Write the handler once.
Serve it everywhere.
Redelay is an event-driven Go framework. One module serves REST, the event bus, SSE, MCP tools and cron — and FlowDSL turns the diagram you draw into the topology that runs.
Apache-2.0 · repos in private beta — request accessorders/handler.gomodule.yamlorders.flowdsl.yaml5 surfaces
1func GetOrder(ctx context.Context, in GetOrderIn) (*Order, error) {
2o, err := orders.Find(ctx, in.ID)
3if err != nil { return nil, err }
4events.Publish(ctx, "order.viewed", o)
5return o, nil
6}
curl api.example.com/orders/ord_42✓ 200 OK · 4 ms
Transport-agnosticOne handler.
One handler.
Five ways to call it.
Your code never knows how it was invoked. Pick a surface — the handler, the event and the schema stay the same.
- OpenAPI + AsyncAPI generated from the module
- Every side effect is a typed, validated event
- Every operation auto-exposed as an MCP tool
$ curl api.example.com/orders/ord_42
{ "id": "ord_42", "status": "paid", "total": 129.0 }
event order.viewed corr=7f3a… ✓ schema valid
FlowDSLThe diagram is the code.
The diagram is the code.
Run it and watch.
The .flowdsl.yaml you draw in Studio is the topology that runs. Pick a ticket and run it — the YAML highlights the node that is executing.
nodes:
ticket_in:
kind: source
classify:
kind: llm · model: qwen3
route:
kind: router
answer:
kind: llm · grounded
handoff:
kind: email · durable
edges:
- ticket_in → classify → route
- route → answer | handoff
Ticket:
ticket_in source
classify llm · qwen3
route router
answer llm · grounded
handoff email · durable
running · node 1 of 40 ms
Batteries included35 modules.
35 modules.
Blank-import what you need.
go-flowdslCore libraryParse .flowdsl.yaml into a canonical IR, scaffold Go modules, render SVG, detect drift and execute flows at runtime. Read the reference
go get github.com/redelay/go-flowdslAdmin + StudioAn admin in
An admin in
one command.
A Nuxt 4 admin with users, settings, flows, live runs and the AI-usage ledger — extend it as a layer. Click around: this one is live-ish.
make admin
acme admin
Flows4 live · sample data
support · classify → answer● live1,204 runs
payment captured → order● live340 runs
i18n sweep● live88 runs
blog media → ComfyUI● live12 runs
Example architectures Patterns you've built the hard way.
Illustrative reference designs — not customer deployments. Hover a card for its flow. Patterns you've built the hard way.
Mapped to real flows.
Build with us Need it built, not just a framework?
Need it built, not just a framework?
Our team ships it on Redelay.
The people behind Redelay run stufio, a small studio that builds AI products on it — assistants, agents, shops and admin panels. Tell us what you need; the quote is free.
- Architecture + FlowDSL design with your team
- Modules, admin and deployment — production-ready
- Hand-over or ongoing support, your choice
Three commands From empty repo to a
From empty repo to a
running service.
$ redelayctl validate-module orders.module.yaml
OK — orders (v1.0.0): 0 warnings
entities: orders.order · events: order.created, order.viewed