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How to Handle CAPTCHA in Browser Use Agents with CapSolver

A browser action controller with one bounded solve-and-resume cycle.

English cover for How to Handle CAPTCHA in Browser Use Agents with CapSolver

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Introduction

Developers using Browser Use can encounter CAPTCHA during a permitted browser or workflow step, causing the automation to stop or return the wrong state. This repository shows how to connect Browser Use with CapSolver, recognize the challenge, request a solution through an isolated adapter, and resume once with clear stop conditions. It focuses only on the Browser Use integration pattern and does not bind the example to a particular business scenario.

Content type: Agent integration. Primary keyword: Browser Use agent CAPTCHA handling (keyword-library row 64).

Problem

Browser use agents can misread a captcha interruption as a completed browser action. The implementation returns explicit challenge_detected, ready, or stopped states instead of silently guessing.

Features

  • Mock-first and deterministic local demonstration
  • Allowlisted hosts and one bounded resume attempt
  • CapSolver API isolated behind a small adapter
  • Redacted output with structured stop reasons
  • Unit tests and CI-ready project layout

How It Works

  1. Validate that the target host is explicitly allowlisted.
  2. Classify the browser or workflow observation.
  3. Send only the authorized CAPTCHA task through the adapter.
  4. Poll with a fixed attempt budget and stop conditions.
  5. Resume once and emit a minimal normalized result.

The adapter follows the official createTask API concept and getTaskResult API concept.

Quick Start

python -m unittest discover -s tests -v
PYTHONPATH=src python examples/mock_workflow.py

Project Structure

src/captcha_workflow/  bounded workflow and adapter
examples/              offline demonstration
tests/                 behavior and policy checks
docs/                  five localized README files
assets/                shared English cover

Testing

Tests verify the successful mock path, allowlist rejection, and bounded challenge handling. No live key or production target is required.

Responsible Use

Use only public data, owned systems, or targets for which you have explicit authorization. Respect terms, rate limits, purpose limitation, field minimization, retention limits, and stop conditions. Do not use this example for private or restricted data, credential access, detection evasion, or unbounded collection. Travel, pricing, inventory, personal, financial, employment, or contact data requires a documented lawful purpose and proportionate human review.

Conclusion

This repository provides a browser action controller with one bounded solve-and-resume cycle. Developer sharing CapSolver integration examples. The final product reference is CapSolver.

License

MIT

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A browser action controller with one bounded solve-and-resume cycle using CapSolver.

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