Radioso

At a glance

Radioso is an open-source platform for building customer-facing AI support agents. It answers from documents you upload, with citations back to them, runs multi-step flows you write in plain language, calls your tools and webhooks, and hands a conversation to a human operator when needed. You can use the EU-hosted Radioso Cloud or run it yourself.

Good fit

A team that wants a self-hostable alternative to support bots such as Fin, Rasa or Ada and needs to see why the agent did something. Each turn records which rule steered it, which tool it called and which flow step it was on, and draft changes can be replayed against real conversations before they go live.

Consider something else when

You want a finished chatbot with no configuration or developer involvement. Radioso expects you to supply model keys, write rules and flows, and wire up channels.

Start here

Create a workspace at app.radioso.ai, or run ./run-dev.sh (run-dev.cmd on Windows) and open localhost:3000/signup. Upload a document and ask a question about it; the reply should cite that document. Then add a Notify Human skill named contact_human with a recipient email and ask to speak to a person to see the handoff flow.

Cost and requirements

The core is Apache 2.0. Files under ee/, the Enterprise Edition, need a commercial license; on the website widget, human-contact routing is an Enterprise feature. Self-hosting needs Node.js 24 or later and Docker Desktop; the bundled stack runs Postgres with pgvector. You bring your own OpenAI, Anthropic, Gemini or OpenAI-compatible key, so model usage is billed by that provider.

Limits to know

The MCP server has no stdio entrypoint, so hosted MCP clients need a public HTTPS deployment. A Claude key alone does not cover embeddings; you choose another supported provider for them. The website crawler records pages that return 401, 403 or 429 as failures instead of ingesting them, so login-protected help content must be uploaded another way.

Still unclear

• What does Radioso Cloud cost, and which plan limits apply?