Build AI agentsthat run everywhere.
Clatter SDK fuses a native agent runtime with a universal deploy layer and a built-in Studio. One CLI. One SDK. Every shell, every cloud.
$ curl -fsSL https://sdk.clatterai.com/install.sh | shAn agent toolkit, unlike any other.
Most SDKs hand you a client library. Clatter ships a full native workshop: a runtime, a studio, a simulator and a time-travel debugger — all running on your machine.
Native local runtime
Runs entirely on your machine. No accounts required to build, test and simulate agents end-to-end.
Sub-50ms cold starts
Snapshot-based agent boot. Iterate without waiting on containers, queues or cloud round-trips.
10× less compute
Shared inference pool and adaptive batching cut local CPU/GPU usage dramatically per request.
Studio (built-in)
A browser TUI to compose tools, prompts and memory. Boot it from your shell with a single command.
Time-travel debugger
Step backward through any agent trace, mutate the state, and replay forward. A first in agent tooling.
Sandboxed by default
Every tool call runs in an isolated process with explicit allowlists for filesystem and network.
Any model, any tool
OpenAI, Anthropic, Gemini, Ollama, llama.cpp — connect tools, RAG and webhooks in one config.
Diff-able deploys
Atomic, git-style deploys with semantic diffs between agent versions and instant rollback.
Prompt simulator
Replay thousands of historical conversations against a new prompt in seconds. See regressions instantly.
Define. Simulate. Deploy.
Describe your agent in a few lines, run it against your own dataset, and ship it to the Clatter runtime. All from one terminal.
See the full APIimport { defineAgent } from "@clatter/sdk";
export default defineAgent({
name: "support-bot",
model: "gpt-5",
tools: ["search", "tickets", "billing"],
memory: { backend: "local-kv" },
handler: async ({ message, tools }) => {
const ctx = await tools.search(message);
return tools.reply(ctx);
},
});Start shipping agents today
One command to install. One command to deploy. Free for local development.