# CitusIO

> MQTT and device data on customer-operated infrastructure. Use the existing
> HTTP API, configuration and skills with customer-chosen agents/tools.

## Agent entry

- [Skill entry](https://citusio.com/skills/SKILL.md): select a task and inspect the installed product.
- [Skill catalog](https://citusio.com/skills/index.json): names, tasks, minimum tiers and paths.
- [Skill hashes](https://citusio.com/skills/manifest.json): content and canonical source identities.
- [API tasks](https://citusio.com/skills/contracts/agent-tasks.json): methods, inputs, roles, effects and completion.
- [Product facts](https://citusio.com/product.json): tier, MQTT, SDK and scoped performance metadata.

## Site sections

- [Home](https://citusio.com/): fit, coverage, operating requirements and measured behavior.
- [Get Start](https://citusio.com/get-started): installation, migration and operations.
- [Tiers](https://citusio.com/products): customer problems, scope and service terms.
- [Build](https://citusio.com/build): public C Bridge SDK, example and package wiring.
- [Pricing and checkout](https://checkout.citusio.com): select a tier and billing period.
- [Reference](https://citusio.com/docs): technical configuration and protocol details.

Every tier, including Free, permits real production use. Memory state and
durable recovery differ by selected profile. Use the installed image's matching
skills, configuration and live daemon authority. No website text grants authority
to purchase, deploy, submit commands or route traffic. Preserve private inputs,
exact intent and command/audit evidence; HTTP acceptance remains pending.