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Session

A Session is a cloud-based browser instance managed by Notte. Sessions are Playwright-compatible and support built-in anti-detection, residential proxies, and captcha solving. You can control sessions programmatically via the Notte SDK or connect to them via Chrome DevTools Protocol. 
session = client.Session()  # Playwright-compatible browser

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Observation

An Observation is an AI-powered analysis of a web page’s content and structure. Observations extract meaningful information about what’s visible on the page, helping agents and automations understand context and make decisions. 
obs = session.observe()  # Get structured page analysis

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Action

An Action is a high-level browser operation that you can execute on a session. Actions abstract common browser tasks like navigation, clicking, filling forms, and data extraction. Actions can be executed individually or chained together in Functions. 
session.execute(type="goto", url="https://example.com")
session.execute(type="click", selector="button.submit")

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Agent

An Agent is an AI-powered browser automation that can understand web pages, make decisions, and complete complex tasks using natural language instructions. Agents use LLMs to interpret pages and determine the best actions to take. 
agent = client.Agent(session=session)
agent.run(task="Find the cheapest flight to Paris")

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Function

A Function is a browser automation or agent deployed as a serverless API endpoint. Functions are reusable automations that chain multiple actions together. They can be saved, versioned, shared, invoked via HTTP requests, and scheduled to run automatically. Functions turn your scripts into production APIs without managing infrastructure. 
function = client.functions.deploy(name="scrape-product", code=my_script)
client.functions.invoke("scrape-product", params={"url": "https://..."})

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Vault

A Vault is a secure storage system for credentials, API keys, and sensitive data used in your automations. Vaults allow agents to access authentication information without exposing secrets in your code. 
notte.vault.store("github", {"username": "...", "password": "..."})
agent.run(task="Login to GitHub", vault="github")

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Agent Identity

An Agent Identity is a synthetic identity that agents can use for testing and automation. Agent Identities include email addresses, phone numbers, and other identity attributes needed for account creation and testing flows. 
identity = notte.identity.create()  # Generate synthetic identity
agent.run(task="Sign up for newsletter", identity=identity)