Agents on Cloudflare's edge.
An open-source agent runtime for Cloudflare. Plugins, connectors, and MCP on one bus — durable, streaming, built in public.
Four primitives.
One plugin bus.
The same Cloudflare stack that runs the biggest sites on the internet now runs agents. Open Think wires it together so you can ship one on a weekend.
Durable by default
Every agent is a Durable Object with its own SQLite database. Sessions, fibers, and tool-call history survive restarts. Hibernate when idle, wake on the next turn.
Any model, one bus
Workers AI, Anthropic, OpenAI, Groq, Google — and 19 more via the Cloudflare AI Gateway. Stream tool-use natively. Swap providers without touching agent code.
MCP out of the box
Every agent is an MCP client the moment you deploy. Point it at Cloudflare's own MCP and you have a chat-first control plane for your whole account — with approve-to-run exhibits and rollback.
Helm reads your runtime
and plans the next move.
Ask in plain English. Helm reads your plugin catalog, proposes skill invocations as approve-to-run exhibits, or — in auto mode — runs the whole plan end-to-end with native tool-use streaming.
Three modes · propose · selective · auto — pick per call.
Free to run.
Pro when you need hands.
Open Think is Apache-2.0 forever. Deploy it to your own Cloudflare account in a single click — zero cost when idle, generous free tier for Workers AI and Durable Objects.
For teams who want a managed instance with priority support, or a one-shot concierge to configure everything live, we sell hands and time — not software.
A Helm turn, played back.
A scripted transcript of a real-shape turn: a streaming reply, a tool invocation, an approve-to-run exhibit, and Helm's conclusion. No backend — just the protocol visualized.
Plug in. Chain up.
First-party plugins, MCP servers, and skill packs — plus honest pointers to community projects that inspired us. Verified entries are wired and tested. Reference entries are linked with integration notes, not promises.
"Durable, distributed, structurally safe, and serverless."
— Cloudflare, Project Think announcement
Cloudflare's Project Think laid out the third wave of agents: durable execution, fibers, facets, session APIs, and a sandboxed execution ladder. Open Think is a community reading of that vision — plugin-first, multi-provider, and deployable today by anyone with a Cloudflare account.