Built by engineers who have shipped real systems at scale.
Vibe coding tools, software agents, and low-code platforms ignore software architecture and components.
plain is a platform for building modular software systems where components evolve independently over time. Architecture and components are treated as explicit, durable building blocks, not side effects.
plain generates modular backend systems from explicit system schema definitions.
CRUD services and domain APIs with explicit schemas, validation, authentication.
Typed service connectors for third-party APIs with versioning, retries, rate limits, and failure handling.
Long-running and stateful workflows with durable execution, retries, and explicit state transitions.
Ingestion services, background workers, and batch or streaming pipelines with explicit state and error handling.
Backend services that power AI agents, tool execution, memory, and orchestration without collapsing into opaque logic.
Infrastructure components generated as code, including queues, storage, compute, and environment configuration for all major clouds.
Deterministic system components, built from specifications
AI builds deterministic factories that generate modules from clear specifications, making the same input always produce the same output.
Every module is designed for real production deployment from day one, with multi-cloud and multi-environment support out of the box.
Each module functions independently with clear boundaries and explicit contracts, remaining reusable and replaceable as systems evolve.
Modules can be modified, extended, or reworked without impacting the rest of the system, as long as they adhere to their external contract.
Strong architectural opinions based on production experience help teams avoid common failure modes and move faster without sacrificing system integrity.
Start with plain and ship backend infrastructure that scales.
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