Turn what you know into an AI Agent your audience can access.

It began as a small internal tool. We needed an AI agent to take over part of our own finance workflow, and the brief was clear enough that we could describe it in one sentence and build most of it ourselves.

Describing what it should do turned out to be the easy part. Sharing it was not. Access rights, who sees what, updates that have to reach everyone at once — we ended up pulling in our own tech team for decisions that had nothing to do with the idea and everything to do with the machinery underneath it. It kept feeling harder than it should have been.

The distance between knowing exactly what you want and having it actually running was full of work none of us saw from the outside. So we removed that technical layer for ourselves, once and for all.

Then we asked whether it was just us. People in consulting, at a clinic, in marketing kept giving the same answer: the idea was never what stopped them. So we built Prostir to take that layer off other people too: one place to publish what you know, decide who gets in, set limits, and keep your material in order — so a good idea does not sit in drafts while the same questions keep coming back.

You add what you already know — documents, notes, the answers you repeat every week. You describe how it should answer, in your own words. Then you publish, and it gets its own link that people can talk to, plus a connection that AI apps like ChatGPT or Claude can use when they support it. Putting it on your website or in a chat app is a separate step.

Prostir is built for people who have the expertise but not an engineering team.

Prostir is made by Managed Code, a creative and engineering team that builds products. We have spent years building the parts most products end up rebuilding from scratch: hosting, search over your own material, payments, and who is allowed in.

We are turning that work into pieces anyone can reuse. Some of them are further along than others, and we say so rather than pretending everything is finished.

If you want to see exactly what runs under the hood, the next section has it.

You do not need to read this to use Prostir. If you build software, here is what runs underneath.

Prostir is a .NET platform built by Managed Code. The creator workspace and operator console run on Blazor; the public pages are static Astro. Underneath, typed .NET services on Orleans handle the boundaries between agent, user, session, and operation, with Cosmos for persistence and EF Core for the query model. Aspire orchestrates it locally and in the cloud.

The AI layer uses Microsoft.Extensions.AI for chat clients, embeddings, tool calls, and telemetry. Three Managed Code packages do the heavy lifting: MCPGateway aggregates tools, prompts, and upstream MCP sources; MarkdownLd.Kb builds the Markdown-LD and JSON-LD knowledge artifacts behind search; Storage abstracts files, memory, and runtime artifacts.

Actions stay server-side. The official MCP C# SDK handles protocol, Jint runs sandboxed JavaScript tools, and Stateless drives workflow transitions and can-fire checks. Eligible seller flows use Stripe Connect for one-time payments or subscriptions; Rozetka Pay marketplace checkout is Ukrainian, UAH, and one-time only. The seller remains responsible for tax, fulfillment, refunds, disputes, and warranties. Prostir does not offer pay-per-use billing.