Modular Monolith. Domain-Driven.

Ship enterprise platforms without the boilerplate.

OpenPlate gives your team a clean Modular Monolith architecture with Domain-Driven Design, structured GraphQL and REST APIs, and AI-ready scaffolding, so engineers and LLM agents can navigate your codebase with precision.

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Multi-Tenant

Isolate every tenant's data with global query filters, no per-repository checks to remember.

DDD

Bounded contexts, aggregates, and repositories enforced by structure, not by discipline.

OAuth

OAuth and OpenID Connect built on OpenIddict, with your own login screen instead of a redirect to someone else's.

Modular Monolith

Independent, isolated modules deployed as one app — no distributed-systems tax to pay upfront.

GraphQL

A typed GraphQL surface generated from your domain — every module, queryable, with no hand-written schema.

AI-native

Streamed AI replies and RAG built in, on a codebase structured for AI coding agents to extend.

Background Jobs

Schedule, retry, and monitor background work from a built-in dashboard.

Event Bus

Inspect in-flight and dead-lettered messages on the bus, without touching transport internals.

Modular Monolith architecture, from the ground up: modules vs. microservices.

Traditional microservices spin up a service, and its infrastructure overhead, for every bounded context. OpenPlate uses lightweight domain modules, so dozens of contexts can share a single deployable.

Microservices

Modular monolith

Domain module
Infra overhead
Developer Experience

Model your domain, not your infrastructure.

Write plain TypeScript domain models, services, and repositories. OpenPlate wires up the Modular Monolith plumbing, so GraphQL and REST resolvers stay generated, not hand-maintained.

  • ✓ Full TypeScript support
  • ✓ GraphQL & REST scaffolding
  • ✓ AI-assisted code generation
01 export class PostStore {
02   private api = inject(this, ApiContext);
03   posts: Post[] = [];
04 

05   constructor() {
06     makeAutoObservable(this, {}, { autoBind: true });
07     this.watch();
08   }
09 

10   async load() {
11     this.posts = await this.api.posts
12       .recent()
13       .pageAsync()
14       .then(r => r.nodes);
15   }
16 

17   watch() {
18     return this.api.posts
19       .onPostPublished()
20       .subscribe(p => this.posts.unshift(p));
21   }
22 }

Why choose OpenPlate over the alternatives?

Same outcome, three different paths — see where the time and risk actually go.

MetricBuild it yourselfTypical microservicesOpenPlate
Cost to stand upBuild it yourselfHigh — months of engineering timeMicroservicesHigh — per-service infra overheadOpenPlateLow — scaffolded in minutes
Time to marketBuild it yourselfWeeks to monthsMicroservicesWeeks per serviceOpenPlateDays
CustomizationBuild it yourselfFull, but slow to extendMicroservicesFull, but fragmented across servicesOpenPlateFull, and structured by module
Compliance & securityBuild it yourselfDIY, re-audited per projectMicroservicesRe-implemented per serviceOpenPlateBuilt into the shared foundation
Long-term maintainabilityBuild it yourselfDegrades as the team growsMicroservicesComplex cross-service operationsOpenPlateEnforced module boundaries

Powerful modules, seamlessly integrated

Every module you need to build a real platform, running on the same architecture that powers OpenPlate.

Realtime & AI

  • Notifications

    Realtime, targeted, with delivery and read state

  • Chat

    Persistent conversations with streamed AI replies

  • RAG

    Grounded, cited answers over your own documents

  • Source Generators

    Services wired from a marker interface, with zero reflection

Operations

  • Background Jobs Manager

    Queued and recurring work, monitored from a dashboard

  • Process Manager

    Start, stop, and monitor workers from one surface

  • Event Bus Manager

    Inspect in-flight and dead-lettered messages

  • Multi-Tenant

    Every tenant's data isolated by global query filters

Records & Access

  • Activity Trail

    A full timeline of who changed what, and when

  • File Records Manager

    Tenant-scoped uploads, modeled as first-class records

  • OAuth (OpenIddict)

    Your own login screen, backed by OpenID Connect

  • Preferences

    Typed settings that drive your business rules

Build without the boilerplate

Join engineering teams shipping enterprise platforms faster with clean domain boundaries, structured APIs, and AI-ready scaffolding. Start building for free, no credit card required.

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Modular Monolith architectureDomain-Driven Design boundariesGraphQL & REST out of the boxAI-ready code scaffolding