About Arqen

Arqen is backend infrastructure for agent-ready applications: a set of explicit Rust-first building blocks for HTTP services, typed tools, jobs, observability, and thingd-backed data access.

The intended audience is developers who want an application boundary that is easy to inspect and operate. Arqen does not require an AI model, an agent framework, or a hosted control plane.

Positioning

• Public tagline: Backend infrastructure for agent-ready applications.
• Public description: A developer-focused backend toolkit for agent-ready applications, with typed tools, durable jobs, discoverable APIs, and thingd integration.
• Implementation: Rust-first, using Arqen’s APIs over Tokio, Tower, tracing, and native thingd; Axum is the current internal HTTP transport.

Applications created and served through Arqen identify themselves publicly as Arqen. Axum is an internal implementation detail, not the application’s public framework identity. Generated and recommended application code should import HTTP types from arqen::http, not from Axum directly.

• Compatibility direction: Node.js through HTTP APIs, SDKs, templates, and shared manifests.

The separation matters: Rust describes today’s implementation, not a language requirement for every future Arqen application.