Built on Fountain
Fountain is an API for driving AI agents on sandboxes: every agent gets a real computer, every run is a conversation you can stream, schedule, and build products on. Each app below is a small product built almost entirely on that one API — most have no backend of their own at all.
https://fountain.inevitable.fyi), then Sign in with Fountain
(OAuth + PKCE) or paste an API key. Static files in your browser, the
Fountain API, and an agent with a computer — that's the whole stack.
For everyone
Briefing Room briefs.inevitable.fyi
Tell it what you need to understand and why. A researcher with its own computer reads real sources and returns a clean, cited brief — a document, not a chat.
Table Talk tables.inevitable.fyi
Drop a CSV. An analyst runs Python on its sandbox and comes back with charts and plain-English insights — then just keep asking questions about your data.
Fountain Team github.com/jhgaylor
Your agents as teammates in a messaging app: roster on the left, threads on the right, routines on a schedule, images, search — the original Fountain client.
For engineers
Repo Sage reposage.inevitable.fyi
Point it at any public GitHub repo. An agent clones it on its own machine and answers questions with file-and-line citations that link straight back to GitHub.
Mission Control mission.inevitable.fyi
Describe a mission. A coordinator plans it, you approve the plan, and the app launches one sandboxed agent per task — watch the fleet work, get one report.
For infrastructure
Watchtower watchtower.inevitable.fyi
An SRE teammate on a cron: uptime, latency, TLS expiry and DNS for every site you name. When a tile goes red, ask it to investigate — it has real tools.
DNS Desk github.com/jhgaylor
A dedicated DNS operator for your Cloudflare zones: ask in plain words, review the agent's plan as a diff, approve, done. The pattern for agentic ops on approval-gated systems.