API Architect vs Routebase

API Architect is a web product for describing software architecture, business rules, APIs, and AI governance in a shared executable DSL. Its versioned language models systems, containers, and flows, while centralizing DTOs, compliance rules, and operational constraints. From those definitions, it generates APIs aligned with business needs, governance, and standards. Enterprise DSL is presented as a declarative language covering architecture, business, APIs, rules, AI, governance, and compliance. AI systems can load the DSL as an internal model so generated APIs follow business rules and governance boundaries. An example sets a market-specific maximum length for a resource field and defines a GET route returning that resource. Listed use cases include banking and insurance, retail and e-commerce, industry and energy, and SaaS publishers. Free costs nothing for one active project and community support; Starter is €29 a month; Pro is €79 a month.

Routebase is a hosted service for managing API work through a living specification, from design and testing to documentation and monitoring. Its visual editor lets teams create versioned OpenAPI specifications with endpoints and schemas. Publishing a version creates its documentation portal and mock server; tests and monitors then validate that version. Scheduled monitors compare live API responses with the specification and flag field-level differences. Routebase also includes a native Model Context Protocol server for agents to design, lint and test APIs. Integrations include event-driven webhooks, Slack and Microsoft Teams alerts, scoped API keys and MCP access for AI agents. The Pro plan adds governance and security scanning, including checks described against the OWASP API Security Top 10. Workspaces can be hosted in the EU or US, selected at creation. Routebase has a free plan and a 14-day trial; paid plans start at $9/user/mo (annual). It has no on-premise or self-hosted edition.