Official SDKs for .NET and Node.js wrap the CloudBrowser API, and our MCP toolkits plug real cloud browsers into the OpenAI Agents SDK, the Claude Agent SDK and your coding agents.
// dotnet add package CloudBrowserAiSharp.Puppeteerusing CloudBrowserAiSharp.Puppeteer.Browser;
using CloudBrowserAiSharp.Puppeteer.Extensions;
var token = Environment.GetEnvironmentVariable("CLOUDBROWSER_API_TOKEN");
// Opens a cloud browser and connects PuppeteerSharp in one callvar browser = await BrowserExtension.LaunchAsync(token);
var page = await browser.FirstPage();
await page.GoToAsync("https://example.com");
Console.WriteLine(await page.GetTitleAsync());
await browser.CloseAsync();
Program.cs
Official SDKs
Pick your language. Ship today.
Every SDK talks to the same API, so browsers, labels and saved sessions are shared across languages — and with your MCP clients and the ChatGPT plugin.
CloudBrowserAiSharp.Puppeteer
.NET 8 · NuGet · MIT
Open a cloud browser straight into PuppeteerSharp — one call returns a connected IBrowser — with AI and page helpers built in.
dotnet add package CloudBrowserAiSharp.Puppeteer
BrowserExtension.LaunchAsync(token) opens and connects in one call
Typed exceptions for tokens, subscriptions, units and browser limits
AI helpers: Query<T>, Summarize, Translate, ToMarkdown, ToCSV
The SDKs wrap CloudBrowser’s AI helpers: ask a question about a page, summarize or translate it, or convert it into Markdown, CSV, JSON — or straight into your own .NET types.
Bring your own OpenAI key — AI usage is billed by OpenAI, with no markup from us.
Typed results in .NET — Query<decimal>, To<Plan[]> and friends.
Works on any HTML — pages from CloudBrowser or anywhere else.
using CloudBrowserAiSharp.Puppeteer.AIExtensions;
using CloudBrowserAiSharp.Puppeteer.Browser;
using CloudBrowserAiSharp.Puppeteer.Extensions;
var cloudBrowserToken = Environment.GetEnvironmentVariable("CLOUDBROWSER_API_TOKEN");
var openAiToken = Environment.GetEnvironmentVariable("OPENAI_API_KEY");
// AI helpers use your own OpenAI key
AIExtensions.SetGlobalSettings(cloudBrowserToken, openAiToken);
var browser = await BrowserExtension.LaunchAsync(cloudBrowserToken);
var page = await browser.FirstPage();
await page.GoToAsync("https://example.com/pricing");
var lowest = await page.Query<decimal>("What is the lowest monthly price?");
var summary = await page.Summarize<string>();
var markdown = await page.ToMarkdown();
var pricing = await page.To<PricingPage>();
await browser.CloseAsync();
class PricingPage {
public string Title { get; set; }
public string[] Plans { get; set; }
}
Program.cs
Agent frameworks
Give your own agents a real browser.
No SDK required: point any MCP-capable framework at the hosted server and your agent gets 20 browser tools — open, navigate, click, type, extract, screenshot and close.
OpenAI Agents SDK, Claude Agent SDK and the Responses API
Streamable HTTP with a Bearer token — or OAuth in apps
The same browsers and saved sessions as your SDK code
# pip install openai-agentsimport asyncio, os
from agents import Agent, Runner
from agents.mcp import MCPServerStreamableHttp
asyncdef main():
asyncwith MCPServerStreamableHttp(
name="CloudBrowser",
params={
"url": "https://mcp.cloudbrowser.ai",
"headers": {"Authorization": f"Bearer {os.environ['CLOUDBROWSER_API_TOKEN']}"},
},
) as cloudbrowser:
agent = Agent(
name="Web researcher",
instructions="Use CloudBrowser for anything on the web. Close every browser you open.",
mcp_servers=[cloudbrowser],
)
result = await Runner.run(agent, "Open example.com, summarize it, then close the browser.")
print(result.final_output)
asyncio.run(main())
agent.py
Coding agents
Skills for the agents you code with.
The open-source CloudBrowser skill teaches coding agents to run bounded browser jobs: open a browser, gather evidence, then close it and check that it is gone.
Claude Code
Add the hosted MCP server for every project, then sign in once.
claude mcp add --transport http --scope user cloudbrowser https://mcp.cloudbrowser.ai
Codex
Add the server, then install the CloudBrowser skill for bounded browser jobs.
npx @cloudbrowser/skills
Gemini CLI
One extension adds the server and the skill, and asks for your API token securely.
Which languages have an official CloudBrowser SDK?+
.NET and Node.js. For .NET there are two NuGet packages: CloudBrowserAiSharp.Puppeteer, which opens a browser straight into PuppeteerSharp, and CloudBrowserAiSharp, a typed client for the whole HTTP API. For Node.js, the cloudbrowserai package on npm opens browsers and calls the AI helpers.
Is there a Python SDK?+
An official Python client is on the way. You do not need one to get started: open a browser with a single requests call to the HTTP API and drive it with Playwright’s connect_over_cdp — or pyppeteer, or any other CDP library.
Do I need an SDK to use CloudBrowser?+
No. CloudBrowser is a plain HTTP API plus the Chrome DevTools Protocol. Any language that can send an HTTP request and open a WebSocket can use it; the SDKs just save you the boilerplate.
Which .NET package should I use?+
Use CloudBrowserAiSharp.Puppeteer if you automate with PuppeteerSharp — one call returns a connected browser and you get AI and page helpers. Use CloudBrowserAiSharp if you want a typed client for the API itself, for example to manage browsers, remote desktops and saved sessions from a back-end service.
Can I use the Node.js SDK with Playwright?+
Yes. BrowserService.open() returns the browser’s CDP address. Pass it to Playwright’s chromium.connectOverCDP() instead of puppeteer.connect().
How do I give my own AI agent a browser?+
Point your agent framework at the hosted MCP server, https://mcp.cloudbrowser.ai, with your API token as a Bearer header. The OpenAI Agents SDK, the Claude Agent SDK, the OpenAI Responses API and any other MCP-capable framework get CloudBrowser’s 20 browser tools without extra code.
What are CloudBrowser skills?+
A ready-made skill for coding agents — Claude Code, Codex, Gemini CLI and more — that runs bounded browser jobs safely: open a browser, inspect pages, capture evidence, then close the browser and verify it is gone.
Where do I get an API token?+
Create a CloudBrowser account, open the dashboard and copy your API token. Store it in an environment variable such as CLOUDBROWSER_API_TOKEN and keep it on the server.
Are the SDKs open source?+
Yes — the SDK sources are on GitHub under https://github.com/CloudBrowser-AI. The .NET packages are MIT-licensed.
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