Write an agent.
We run it forever.

TEMPLATES

Deploy a 24/7 agent in under 3 minutes. Bring your API key, we handle the rest.

THE PROBLEM

Building an AI agent today means wiring together a server, a database, a queue, a cache, an LLM proxy, a secret store, and a monitoring stack before writing a single line of agent logic.

oncell replaces all of that with one object: Agent. You write TypeScript. We handle compute, state, durability, LLM routing, and traces.

BUILT INTO EVERY AGENT

+ agent.askHuman() · agent.schedule() · agent.onWebhook() · agent.spawn() · agent.once() · oncell trace · see all →

ONE AGENT, MULTIPLE MODELS

Design with claude-opus. Code with kimi-k3. Automatically.

// Skills declare WHAT to do and WHICH model to use
skills: {
  design: { when: "architecture needed",
           model: "claude-opus",      // strong thinker
           guide: "Think step by step..." },
  code:   { when: "writing code",
           // uses default (kimi-k3) — fast coder
           guide: "Write clean code..." },
}

// The loop auto-detects the active skill and switches:
// Turn 1 (kimi-k3):    [SKILL:design] → switch to opus
// Turn 2 (claude-opus): designs architecture
// Turn 3 (claude-opus): [SKILL:code]   → switch to k3
// Turn 4 (kimi-k3):    writes code, runs tests

AGENTS THAT NEVER LOSE WORK

Every awaitis a checkpoint. Kill the process, redeploy, approve three days later — the run completes.

agent.task("refund", async ({ orderId, amount }) => {
  const order = await agent.db.sql`SELECT * FROM orders WHERE id = ${orderId}`;

  // Parks here. Can wait days for a human.
  const ok = await agent.askHuman({ question: `Refund $${amount}?` });

  if (ok.approved) await agent.llm("Process the refund");

  // Sleep 30 days, then follow up. $0 while sleeping.
  await agent.sleep({ days: 30 });
  await agent.llm("Check if customer is satisfied");
});

USE FROM YOUR APP

import { OnCell } from "@oncell/sdk";
const oncell = new OnCell({ apiKey: "oncell_sk_..." });

// Run a task
const result = await oncell.agent("engineer").run("build", {
  prompt: "Add dark mode to the settings page",
});

// Stream events
for await (const event of oncell.agent("engineer").stream("build", { prompt })) {
  console.log(event.type, event.data);
}

WHY ONCELL