bctrl 0.1.1

Remote browser automation for AI agents - Python SDK

bctrl

Python SDK for the BCTRL public API.

Install

pip install bctrl

Quick Start

from bctrl import Bctrl
from pydantic import BaseModel, ConfigDict


class Invoice(BaseModel):
    model_config = ConfigDict(extra="forbid")

    invoiceNumber: str
    total: float

bctrl = Bctrl(api_key="bctrl_...")

with bctrl.runtimes.started_browser(name="checkout") as browser:
    print(browser.connect_url)

    invocation = bctrl.runtimes.invocations.create_and_wait(
        browser.runtime_id,
        action="extract",
        instruction="Extract the invoice number and total.",
        output_model=Invoice,
    )

    invoice = invocation["parsed_output"]
    print(invoice.invoiceNumber, invoice.total)

    for event in bctrl.runs.events.stream(browser.run_id):
        print(event)

Python methods use snake_case; the SDK sends the API's camelCase fields on the wire. For example, runtime_path becomes runtimePath.

Design

• Sync-first client.
• Route-first namespaces that mirror the API reference.
• Raw response bodies as dictionaries.
• Pydantic model support for invocation output schemas.
• Python context managers for runtime lifecycle cleanup.
• Sync SSE iterators for run events and activity.
• Explicit helpers for pagination, multipart uploads, and create_and_wait.
• No hidden follow-up requests or stateful resource refreshes.

License

ISC