Gaffa vs Playwriter

Simple REST API for Browser Control

Gaffa abstracts the complexities of frameworks like Playwright, Selenium, and Puppeteer into a straightforward REST API. Developers can execute sophisticated browser automation tasks—such as navigation, interaction, and data extraction—with a single HTTP request. This eliminates the learning curve and maintenance burden associated with direct browser automation libraries, streamlining integration into existing data workflows and applications.

Stealth Mode with Resilient Infrastructure

The platform is engineered to target the hardest-to-scrape websites. Its stealth mode integrates a global network of residential proxies, automated CAPTCHA-solving capabilities, and real browser instances that execute JavaScript and render pages identically to a human user. Gaffa automatically handles proxy rotation, request throttling, and fingerprint management to bypass advanced anti-bot defenses, ensuring high success rates for data extraction missions.

Automated Data Processing and Output Formats

Gaffa goes beyond returning raw HTML. It includes built-in data processing to transform web content into immediately usable formats. Users can specify output as clean, simplified HTML; structured JSON via CSS selectors; LLM-ready markdown optimized for AI ingestion; full-page screenshots; or even self-contained offline page archives. This feature saves significant post-processing time and computational resources.

Full Observability and Request Recording

Every automation executed through the Gaffa API is recorded for complete observability. Users can review detailed logs, performance metrics, and visual screen recordings of their browser sessions. This transparency is critical for debugging complex automation scripts, verifying data extraction accuracy, and auditing the behavior of the automation to ensure it operates as intended against target websites.

Your Authenticated Browser Session

Playwriter's foundational feature is granting AI agents access to your actual Chrome browser tab, complete with all existing logins, cookies, local storage, and installed extensions. This eliminates the need for agents to navigate authentication flows manually, bypasses bot detection mechanisms triggered by fresh, headless instances, and ensures the browsing context is identical to a human user's. It also avoids the memory overhead of spawning a separate browser process, as the automation occurs within your already-running Chrome instance.

Full Playwright API via a Single Execute Tool

Unlike systems that define dozens of individual tools (e.g., click_element, extract_text), Playwriter provides agents with one powerful execute tool. This tool accepts any valid Playwright code, granting the agent unrestricted access to the entire Playwright API for browser control. This approach minimizes context window bloat from extensive tool schemas and offers maximum flexibility, allowing agents to perform complex sequences, use advanced selectors, handle frames, and manage dialogs without being constrained by a pre-defined wrapper.

Advanced Debugging and Inspection Suite

Playwriter includes a comprehensive suite of debugging and inspection utilities designed for AI-driven development. This includes a debugger with breakpoints to pause execution, live code editing to modify agent scripts on the fly, and network interception to monitor and mock HTTP requests. Furthermore, it generates highly efficient accessibility snapshots (5-20KB) instead of full screenshots, providing the AI with structured DOM and ARIA data in a compact format, and supports full screen recording of agent sessions for playback and analysis.

Local-First Architecture and Collaboration

The entire Playwriter system runs locally on your machine. The Chrome extension connects to a local WebSocket server (default localhost:19988), and all communication—including Chrome DevTools Protocol commands—stays on your computer. This enables real-time collaboration: you can watch the agent interact with websites live, intervene to solve CAPTCHAs or consent modals, manually correct issues, and then re-enable agent control. The session multiplexing allows multiple CLI instances or agents to interact with different browser tabs simultaneously.

Competitive Intelligence and Market Research

Businesses can automate the collection of pricing data, product catalogs, feature updates, and promotional content from competitor websites at scale. Gaffa's ability to handle JavaScript-heavy sites and bypass blocks ensures a consistent flow of structured data, enabling companies to perform dynamic pricing analysis, track market trends, and inform strategic decisions with real-time web data.

AI and LLM Training Data Aggregation

For teams building or fine-tuning large language models, Gaffa provides a reliable pipeline for sourcing high-quality, diverse training data from the web. The platform's ability to output clean, LLM-ready markdown and structured JSON simplifies the data preparation pipeline, allowing data scientists to focus on model development rather than the complexities of data collection and cleaning.

Regulatory Compliance and Financial Monitoring

Financial institutions and compliance teams can use Gaffa to automate the monitoring of regulatory publications, news sites, and official registers. The platform's reliability and audit trail via session recording are essential for ensuring data provenance and completeness in regulated environments, supporting activities like KYC (Know Your Customer) checks and adverse media screening.

E-commerce Price and Inventory Monitoring

Retailers and aggregators can deploy Gaffa to track real-time pricing, stock availability, and product descriptions across thousands of e-commerce SKUs. The system's concurrent request handling and proxy rotation allow for high-frequency, large-scale scraping without triggering IP bans, enabling dynamic repricing strategies and supply chain optimization.

AI-Powered Web Research and Data Extraction

Agents can autonomously conduct in-depth research across multiple websites that require login, such as private forums, subscription news services, or web applications. Using your authenticated session, the agent can navigate complex site structures, handle pagination, consent pop-ups with your assistance, and extract structured data using the full Playwright API, all while operating within your real browser context to avoid blocks.

Automated Testing and QA with Real User Conditions

Developers and QA engineers can use Playwriter to instruct AI agents to perform end-to-end testing on web applications under genuine user conditions. Since the agent uses your browser with your specific extensions and cache, tests can cover scenarios like "user is logged in with specific preferences" or "with ad-blocker enabled," providing more accurate and realistic test results than isolated, clean browser environments.

Complex Workflow Automation and Web Task Delegation

Playwriter enables the delegation of tedious, multi-step web tasks to AI agents. This includes activities like filling and submitting complex forms across several pages, managing content in web admin panels (e.g., CMS updates), monitoring dashboards for changes, or orchestrating workflows that involve moving data between different web services that you are already logged into.

AI-Assisted Development and Debugging

Developers can use Playwriter as a pair-programming tool for web development. An AI agent can be instructed to interact with a web application you are building, profile performance, test specific user journeys, set breakpoints in the automation script, intercept network calls to debug API interactions, and generate visual labels or snapshots to help identify UI elements, all within your development browser.

Gaffa is an API-first platform engineered to solve the complex, infrastructural challenges of large-scale web data extraction and browser automation. It provides developers, data scientists, and businesses with a robust, simplified interface to control real, fully-featured web browsers via a REST API, eliminating the need to build and maintain intricate in-house systems. The platform's core value proposition is its abstraction of the entire technical stack required for reliable scraping, including proxy management, CAPTCHA solving, browser orchestration, and failure handling. This allows technical teams to focus entirely on data utilization rather than pipeline management. Gaffa is specifically architected for resilience against sophisticated anti-bot measures, employing stealth techniques, residential proxy networks, and real browser instances to mimic genuine human interaction. It supports sophisticated automation actions like scrolling, clicking, and form submission, and delivers processed data in multiple formats including raw HTML, structured JSON, LLM-ready markdown, and images. Ideal for startups, growth-stage companies, and enterprises, Gaffa delivers consistent, high-volume access to web data with minimal operational overhead.

Playwriter is a developer-centric tool that provides AI agents with direct, programmatic control over your existing, authenticated Chrome browser session. It solves the fundamental limitation of most browser automation tools for AI, which either spawn a fresh, "clean" browser instance (lacking logins, cookies, and extensions while triggering bot detection) or offer a limited, pre-defined set of actions. Playwriter bridges this gap by exposing the full power of the Playwright automation API to AI agents through a single, unified interface. It operates via a Chrome extension and a local CLI, establishing a WebSocket relay on your machine. This architecture allows agents to execute any Playwright code directly in your browser, leveraging your real sessions, installed extensions, and local settings. Its core value proposition is enabling robust, realistic, and collaborative web automation where the AI handles repetitive tasks within the exact same browser environment a human uses, facilitating seamless human-in-the-loop workflows. It is open-source under the MIT license and integrates with any MCP (Model Context Protocol) client like Cursor, Claude Desktop, and VS Code.

What is a credit and how is it calculated?

A credit is Gaffa's unit of consumption for its API. Usage is calculated based on two primary factors: request duration and proxy bandwidth. Browser runtime is billed at 1 credit per 30 seconds (or 2 credits per 30 seconds if screen recording is enabled). Additionally, any request utilizing a residential proxy (proxy_location parameter) incurs a bandwidth charge of 1500 credits per 1GB of data transferred. Each successful API call deducts the corresponding credits from your monthly allowance.

Does Gaffa offer a free trial?

Yes, Gaffa provides a free tier that allows users to sign up and experiment with the full API feature set without a credit card. This trial is conducted on a dedicated demo site (demo.gaffa.dev), enabling users to build and test automations, understand the workflow, and assess output formats before upgrading to a paid plan for use on the open internet.

What is Gaffa's refund policy?

Gaffa is happy to offer a refund upon request, provided the request is made before any credits have been consumed within the current billing cycle. Once credits have been used, refunds are not typically issued. Users are encouraged to review the detailed refund policy on the Gaffa website for specific terms and conditions.

Do unused credits roll over to the next month?

No, credits do not roll over. The credit allowance included with your monthly subscription plan is reset at the start of each new billing cycle. Any unused credits from the previous period are forfeited. This applies to both monthly plans and pay-as-you-go credit packs, which also have no expiration unless specified otherwise at purchase.

How does Playwriter differ from other browser automation MCP servers?

Other MCP solutions typically either launch a new, isolated Chrome instance (lacking your logins and extensions) or provide a limited set of hard-coded tools. Playwriter is unique because it injects automation into your existing, live Chrome session and provides a single, unrestricted execute tool for the full Playwright API. This combines real-world browser context with maximum programming flexibility for the AI agent.

Is my browsing data secure with Playwriter?

Yes. Playwriter operates on a strict local-first principle. The Chrome extension communicates only with a WebSocket server running on localhost (port 19988 by default). All commands and data, including Chrome DevTools Protocol traffic, remain on your machine. No browsing data, cookies, or session information is transmitted to any remote server. The tool is also open-source, allowing for code audit.

What happens if the agent encounters a CAPTCHA or needs a human decision?

This is a key collaborative feature of Playwriter. Since you are sharing your browser, you see the agent's actions in real-time. If a CAPTCHA or a consent wall appears, you can simply solve or click it yourself. You can then temporarily disable the extension on that tab, perform any necessary manual steps, re-enable control, and the agent can continue its automated task from the new state.

Can I use Playwriter with multiple browser tabs or multiple AI agents simultaneously?

Yes. The local WebSocket relay multiplexes sessions. You can attach the Playwriter extension to multiple Chrome tabs, each representing a separate controllable session. Multiple CLI instances or AI agents (via MCP) can connect to the relay and control different tabs independently, allowing for parallel automation tasks within a single browser window.

Gaffa is a REST API platform in the web automation and data extraction category. It provides a managed service for controlling real browsers at scale, abstracting the infrastructure complexities of proxy management, CAPTCHA solving, and anti-bot evasion to deliver reliable data. Users may seek alternatives for various reasons, including budget constraints, specific feature requirements not covered by the platform, or a need for greater control over the underlying infrastructure. Some organizations might prefer an open-source framework to build a custom solution, while others might require different pricing models or integration capabilities. When evaluating alternatives, key considerations include the core technology stack, such as whether it uses headless browsers or HTTP clients, its ability to handle JavaScript-rendered content and bypass anti-bot measures, and the scalability of its proxy network. The format and reliability of data output, along with the total cost of ownership for development and maintenance, are also critical decision factors.

Playwriter is an open-source automation tool that provides AI agents with direct, stateful control over a real Chrome browser session. It belongs to the browser automation and AI agent tooling category, enabling complex workflows via CLI or the Model Context Protocol (MCP). Users often seek alternatives for various reasons, including specific budget constraints, the need for different integration points like Selenium or Playwright frameworks, or requirements for non-Chrome browser support or cloud-based execution. When evaluating alternatives, key considerations include the depth of browser integration, whether the solution provides a fresh, isolated session or access to an authenticated one with extensions, and the method of data exchange with the AI. The efficiency of state capture, such as using lightweight accessibility snapshots versus full screenshots, significantly impacts performance and cost. Security model, licensing, and support for debugging features like network interception and breakpoints are also critical differentiators. --- FAQ_SEPARATOR--- [
{"question": "What is Playwriter?", "answer": "Playwriter is an open-source (MIT licensed) tool that allows AI agents to control a real, authenticated Chrome browser session via CLI or the Model Context Protocol (MCP), providing full automation capabilities."},
{"question": "Who is Playwriter for?", "answer": "It is for developers and teams building AI agents that require reliable, stateful web interaction using an existing browser session with logins and extensions, rather than a fresh, isolated instance."},
{"question": "Is Playwriter free?", "answer": "Yes, Playwriter is open source and released under the permissive MIT license, making it free to use and modify."},
{"question": "What are the main features of Playwriter?", "answer": "Key features include automation via a real Chrome session, compact accessibility snapshots, a debugger with breakpoints and live editing, network interception, video recording, and compatibility with any MCP client."}
]