{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"awesome-browserbase","slug":"browserbase","name":"Browserbase","type":"mcp","url":"https://github.com/browserbase/mcp-server-browserbase","page_url":"https://unfragile.ai/browserbase","categories":["mcp-servers"],"tags":[],"pricing":{"model":"open_source","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"awesome-browserbase__cap_0","uri":"capability://tool.use.integration.cloud.based.browser.automation.via.mcp","name":"cloud-based browser automation via mcp","description":"Exposes browser automation capabilities through the Model Context Protocol (MCP) standard, allowing LLM agents and tools to invoke headless browser operations (navigation, interaction, extraction) as remote procedure calls. Browserbase manages browser lifecycle, session state, and resource pooling in the cloud, abstracting away infrastructure complexity while maintaining stateful browser context across multiple tool invocations within a single agent session.","intents":["I want my AI agent to browse websites and extract data without managing browser infrastructure","I need to automate multi-step web workflows (login → navigate → fill forms → extract results) triggered by LLM decisions","I want to integrate web automation into my agentic workflow without writing Selenium/Playwright boilerplate"],"best_for":["AI agent developers building LLM-driven automation workflows","teams building AI copilots that need real-time web interaction capabilities","developers migrating from REST-based web scraping to agent-native patterns"],"limitations":["Requires Browserbase API credentials and active cloud account — no local-first option","Network latency for browser operations (typically 500ms–2s per action) may impact real-time agent responsiveness","Session state persists only within a single agent invocation; cross-session state requires explicit management","Limited to Browserbase's cloud infrastructure — no on-premise or self-hosted deployment option"],"requires":["Browserbase API key (obtain from https://browserbase.com)","MCP-compatible client (Claude Desktop, LangChain with MCP support, or custom MCP host)","Network connectivity to Browserbase cloud endpoints","Node.js 16+ or Python 3.8+ (depending on client implementation)"],"input_types":["URL strings","CSS/XPath selectors for element targeting","Text input for form filling","JavaScript code snippets for custom page interactions"],"output_types":["HTML/DOM snapshots","Extracted structured data (JSON)","Screenshot images (PNG/JPEG)","Execution status and error messages"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-browserbase__cap_1","uri":"capability://automation.workflow.stateful.web.navigation.with.context.preservation","name":"stateful web navigation with context preservation","description":"Maintains browser session state across multiple sequential navigation and interaction commands, preserving cookies, local storage, authentication tokens, and DOM state between tool invocations. The MCP server manages session IDs and routes subsequent requests to the same browser instance, enabling multi-step workflows where later actions depend on earlier page states (e.g., authenticated navigation after login).","intents":["I need to log into a website once and then perform multiple authenticated actions in sequence","I want to navigate through a multi-page workflow where each page depends on previous interactions","I need to maintain form state across multiple agent decisions and refinements"],"best_for":["agents performing multi-step authenticated workflows (login → search → purchase)","developers building AI assistants for complex web applications requiring session continuity","automation of workflows spanning 5+ sequential page interactions"],"limitations":["Session timeout policies (typically 30–60 minutes) may terminate long-running workflows without explicit refresh","No built-in session persistence across separate agent invocations — each new agent run starts a fresh browser context","Memory overhead scales with session count; concurrent sessions consume cloud resources proportionally","Debugging multi-step failures requires access to Browserbase logs; limited local visibility into intermediate states"],"requires":["Browserbase API key with session management permissions","MCP client capable of maintaining tool invocation context across multiple calls","Target website must not have aggressive bot detection or session validation that blocks cloud IPs"],"input_types":["Session ID (returned from initial navigation command)","URL for navigation","Interaction commands (click, type, submit)"],"output_types":["Updated DOM state (HTML snapshot)","Session metadata (cookies, storage contents)","Navigation status (success/redirect/error)"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-browserbase__cap_2","uri":"capability://automation.workflow.dom.aware.element.targeting.and.interaction","name":"dom-aware element targeting and interaction","description":"Supports multiple element targeting strategies (CSS selectors, XPath, text matching, accessibility labels) and executes interactions (click, type, submit, hover, scroll) with built-in waits for element visibility and interactability. The MCP server translates high-level interaction intents into Playwright commands with automatic retry logic and stale element detection, handling common web automation challenges (dynamic content, lazy loading, overlays) transparently.","intents":["I want to click a button that might not be immediately visible or might be covered by a modal","I need to fill a form field with text and handle autocomplete suggestions that appear dynamically","I want to extract data from a table that loads asynchronously after page navigation"],"best_for":["automating interactions with modern single-page applications (React, Vue, Angular)","agents performing data extraction from dynamically-rendered content","workflows requiring robust element targeting across different page states"],"limitations":["Selector brittleness: CSS/XPath selectors break if page structure changes; no built-in selector repair or fuzzy matching","Timeout handling is fixed (typically 5–10 seconds); no per-action timeout customization in current MCP schema","Shadow DOM and iframes require explicit traversal; no automatic cross-boundary element selection","Text-based selectors are case-sensitive and whitespace-sensitive; no fuzzy text matching for dynamic content"],"requires":["Valid CSS selector, XPath expression, or text content for target element","Target element must be within the viewport or scrollable into view","JavaScript must be enabled in the browser (default for Browserbase)"],"input_types":["CSS selector string","XPath expression","Element text content","Accessibility label (aria-label, aria-labelledby)","Interaction type (click, type, submit, hover, scroll)","Text input for typing actions"],"output_types":["Interaction success/failure status","Updated page HTML after interaction","Element properties (visibility, position, attributes)","Error details (element not found, not interactable, timeout)"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-browserbase__cap_3","uri":"capability://image.visual.screenshot.capture.and.visual.page.state.inspection","name":"screenshot capture and visual page state inspection","description":"Captures full-page or viewport screenshots at any point in the automation workflow, returning images in PNG or JPEG format. Screenshots can be taken before/after interactions to verify page state changes, and are useful for debugging agent decisions or providing visual context to multi-modal LLMs. The MCP server handles screenshot rendering, compression, and encoding transparently.","intents":["I want to verify that a form submission succeeded by comparing screenshots before and after","I need to provide visual feedback to a multi-modal LLM to help it decide the next action","I want to capture evidence of a completed workflow for audit or logging purposes"],"best_for":["multi-modal agents that benefit from visual context for decision-making","debugging complex automation workflows by inspecting intermediate page states","compliance and audit workflows requiring visual evidence of completed actions"],"limitations":["Screenshot size can be large (500KB–2MB for full-page captures); impacts token usage if sent to LLMs","Full-page screenshots may exceed viewport dimensions, requiring stitching or scrolling; behavior varies by page","Dynamic content (animations, videos, ads) may render differently depending on timing; no frame-perfect control","Screenshots are point-in-time captures; do not reflect subsequent DOM mutations or network requests"],"requires":["Browser must be in a valid state (page loaded, no critical errors)","Sufficient cloud storage/bandwidth for image transmission (typically <5MB per screenshot)"],"input_types":["Screenshot type (viewport or full-page)","Image format preference (PNG or JPEG)","Optional quality/compression settings"],"output_types":["Image data (PNG or JPEG binary)","Image metadata (dimensions, file size, format)"],"categories":["image-visual","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-browserbase__cap_4","uri":"capability://automation.workflow.javascript.execution.and.custom.page.manipulation","name":"javascript execution and custom page manipulation","description":"Executes arbitrary JavaScript code within the browser context, enabling agents to perform custom DOM queries, trigger events, manipulate page state, or extract data using client-side logic. The MCP server evaluates JavaScript in the page's context and returns serialized results (JSON, primitives, or stringified objects). Useful for interacting with complex frameworks or extracting data that requires computation.","intents":["I need to extract data from a React component's state that isn't directly visible in the DOM","I want to trigger a custom JavaScript event that the page's framework listens for","I need to compute a value based on multiple page elements (e.g., sum prices in a shopping cart)"],"best_for":["automating interactions with modern JavaScript frameworks (React, Vue, Angular) that expose APIs via window object","extracting data that requires client-side computation or framework-specific queries","workflows requiring fine-grained control over page state beyond standard DOM interactions"],"limitations":["JavaScript execution is sandboxed to the page context; cannot access browser APIs outside the page (e.g., file system, network)","Return values must be JSON-serializable; complex objects (DOM nodes, functions, circular references) cannot be returned directly","No timeout control per script; long-running scripts may block the browser or trigger Browserbase timeouts","Errors in JavaScript execution may crash the page or leave it in an inconsistent state; no automatic recovery","Security risk if agent-generated JavaScript is not validated; potential for injection attacks if user input is interpolated into scripts"],"requires":["JavaScript must be enabled in the browser (default)","Target page must not have Content Security Policy (CSP) restrictions that block script execution","JavaScript code must be syntactically valid and return JSON-serializable values"],"input_types":["JavaScript code as a string","Optional arguments to pass to the script (as JSON)"],"output_types":["Serialized return value (JSON, string, number, boolean, array, object)","Execution error messages if script fails"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-browserbase__cap_5","uri":"capability://data.processing.analysis.structured.data.extraction.with.css.xpath.queries","name":"structured data extraction with css/xpath queries","description":"Extracts data from the DOM using CSS selectors or XPath expressions, returning structured results (text content, attributes, HTML) for multiple matching elements. The MCP server evaluates selectors against the current DOM and returns results as JSON arrays or objects, enabling agents to parse tables, lists, product information, or other structured content without manual DOM traversal.","intents":["I want to extract all product names and prices from an e-commerce listing page","I need to parse a table of data and return it as JSON for downstream processing","I want to extract metadata (author, date, tags) from a blog post or article"],"best_for":["data extraction workflows from structured web content (tables, lists, product listings)","agents performing web scraping as part of a larger automation workflow","workflows requiring consistent data format (JSON) for downstream processing"],"limitations":["Selector brittleness: CSS/XPath selectors break if page HTML structure changes; no built-in selector versioning or repair","No built-in pagination handling; agents must explicitly navigate to each page and re-run extraction","Extraction is point-in-time; does not handle dynamically-loaded content unless explicitly waited for","No schema validation; extracted data structure depends entirely on selector accuracy; no type coercion or validation","Large result sets (1000+ elements) may cause performance issues or exceed response size limits"],"requires":["Valid CSS selector or XPath expression matching target elements","Target elements must be in the DOM (may require waiting for dynamic content to load)","Page must be fully loaded or in a stable state"],"input_types":["CSS selector or XPath expression","Attribute names to extract (e.g., 'href', 'data-id')","Text content extraction flag"],"output_types":["JSON array of extracted elements","Each element contains requested attributes and/or text content","Null or empty array if no matches found"],"categories":["data-processing-analysis","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-browserbase__cap_6","uri":"capability://automation.workflow.wait.for.condition.polling.with.configurable.timeouts","name":"wait-for-condition polling with configurable timeouts","description":"Polls for specific page conditions (element visibility, text presence, URL change, network idle) with configurable timeout and polling interval. The MCP server repeatedly evaluates the condition until it becomes true or the timeout expires, blocking the agent until the condition is satisfied. Enables agents to synchronize with asynchronous page behavior (AJAX requests, animations, lazy loading) without explicit sleep commands.","intents":["I want to wait for a search results page to load before extracting data","I need to wait for a modal dialog to appear before interacting with it","I want to ensure all network requests have completed before taking a screenshot"],"best_for":["automating single-page applications with asynchronous content loading","workflows requiring synchronization with network requests or animations","agents that need to wait for dynamic content before proceeding"],"limitations":["Timeout is global; no per-condition timeout customization in current MCP schema","Polling interval is fixed; no adaptive polling based on page behavior","Condition evaluation is binary (true/false); no partial progress or intermediate state reporting","Network idle detection may be unreliable if page has background requests or WebSocket connections","Excessive polling can consume cloud resources; no rate limiting or backoff strategy"],"requires":["Condition must be evaluable as a boolean (element visible, text present, URL matches, etc.)","Page must be in a state where the condition can eventually become true"],"input_types":["Condition type (element visible, text present, URL change, network idle)","Selector or text content to wait for","Timeout duration (milliseconds)","Optional polling interval"],"output_types":["Boolean success/failure","Actual wait duration","Error message if timeout exceeded"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-browserbase__cap_7","uri":"capability://automation.workflow.form.filling.and.submission.with.validation","name":"form filling and submission with validation","description":"Fills form fields with text, selects dropdown options, checks/unchecks checkboxes, and submits forms with built-in validation and error handling. The MCP server maps high-level form operations to low-level DOM interactions, handling common form patterns (required fields, validation messages, multi-step forms) transparently. Includes automatic detection of form submission success/failure and navigation state changes.","intents":["I want to fill out a login form and submit it, then verify that authentication succeeded","I need to fill a multi-field form with data from an agent's context and handle validation errors","I want to select options from a dropdown and submit a search form"],"best_for":["automating user-facing workflows that involve form interactions (login, search, checkout)","agents performing data entry tasks with validation and error recovery","workflows requiring multi-step form completion with conditional logic"],"limitations":["Form field targeting relies on CSS selectors or XPath; brittle if form structure changes","No built-in validation message parsing; agents must manually check for error messages after submission","Multi-step forms require explicit navigation between steps; no automatic form progression","File upload fields are not supported (security restriction in headless browsers)","CAPTCHA and other anti-bot mechanisms will block form submission; no built-in CAPTCHA solving"],"requires":["Form fields must be accessible via CSS selectors or XPath","Form must not require file uploads or CAPTCHA completion","Target website must not have aggressive rate limiting or bot detection"],"input_types":["Form field selector (CSS or XPath)","Field type (text, select, checkbox, radio, textarea)","Value to fill (text, option value, boolean for checkboxes)"],"output_types":["Form submission status (success, validation error, network error)","Validation error messages (if any)","Post-submission page state (URL, HTML snapshot)"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-browserbase__cap_8","uri":"capability://automation.workflow.multi.tab.and.iframe.context.switching","name":"multi-tab and iframe context switching","description":"Manages multiple browser tabs and navigates between them, or switches context to interact with content within iframes. The MCP server tracks open tabs/windows and routes subsequent commands to the specified context. Enables agents to handle workflows that involve opening new tabs (e.g., clicking a link with target='_blank') or interacting with embedded content.","intents":["I want to click a link that opens in a new tab, then switch to that tab and extract data","I need to interact with content embedded in an iframe (e.g., a payment form or chat widget)","I want to manage multiple browser tabs and coordinate actions across them"],"best_for":["automating workflows that involve multiple browser contexts (new tabs, popups)","agents interacting with embedded content (iframes, shadow DOM)","complex workflows requiring coordination across multiple pages"],"limitations":["Tab/iframe switching requires explicit context specification; no automatic context detection","Cross-origin iframes may have restricted access due to same-origin policy; content extraction may fail","No built-in tab lifecycle management; agents must manually close tabs to avoid resource leaks","Shadow DOM requires additional JavaScript execution; no built-in shadow DOM traversal","Popup windows may be blocked by browser security policies; no guaranteed popup handling"],"requires":["Target tab or iframe must exist and be accessible","Cross-origin content access requires appropriate CORS headers or same-origin policy compliance"],"input_types":["Tab/window ID or index","Iframe selector (CSS or XPath)","Context type (tab, iframe, popup)"],"output_types":["Context switch status (success/failure)","Available tabs/iframes list","Current context metadata"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"awesome-browserbase__cap_9","uri":"capability://automation.workflow.response.interception.and.network.request.inspection","name":"response interception and network request inspection","description":"Intercepts HTTP requests and responses, enabling agents to inspect network traffic, modify request/response headers, or block specific requests. The MCP server uses Playwright's request interception to provide visibility into network behavior and control over network-level interactions. Useful for debugging, performance analysis, or bypassing certain network requests.","intents":["I want to inspect API responses to understand what data the page is loading","I need to block tracking pixels or ads to speed up page load","I want to modify request headers to simulate a different user agent or referer"],"best_for":["debugging complex web applications by inspecting network traffic","optimizing automation workflows by blocking unnecessary requests","agents that need visibility into API calls made by the page"],"limitations":["Request interception adds latency (typically 50–200ms per request); may slow down page loads","Modifying requests/responses requires careful validation; incorrect modifications may break page functionality","HTTPS requests cannot be decrypted or modified (browser security restriction); only metadata is visible","WebSocket and Server-Sent Events (SSE) connections are not intercepted; only HTTP requests","Request interception may interfere with page functionality if not carefully configured; no automatic rollback"],"requires":["Request interception must be enabled in the browser context","Target requests must be HTTP (not HTTPS with encryption)"],"input_types":["Request URL pattern (regex or string match)","Request method (GET, POST, etc.)","Header modifications (key-value pairs)","Block/allow decision"],"output_types":["Intercepted request metadata (URL, method, headers, body)","Response metadata (status code, headers, body preview)","Interception action result (blocked, modified, allowed)"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":30,"verified":false,"data_access_risk":"high","permissions":["Browserbase API key (obtain from https://browserbase.com)","MCP-compatible client (Claude Desktop, LangChain with MCP support, or custom MCP host)","Network connectivity to Browserbase cloud endpoints","Node.js 16+ or Python 3.8+ (depending on client implementation)","Browserbase API key with session management permissions","MCP client capable of maintaining tool invocation context across multiple calls","Target website must not have aggressive bot detection or session validation that blocks cloud IPs","Valid CSS selector, XPath expression, or text content for target element","Target element must be within the viewport or scrollable into view","JavaScript must be enabled in the browser (default for Browserbase)"],"failure_modes":["Requires Browserbase API credentials and active cloud account — no local-first option","Network latency for browser operations (typically 500ms–2s per action) may impact real-time agent responsiveness","Session state persists only within a single agent invocation; cross-session state requires explicit management","Limited to Browserbase's cloud infrastructure — no on-premise or self-hosted deployment option","Session timeout policies (typically 30–60 minutes) may terminate long-running workflows without explicit refresh","No built-in session persistence across separate agent invocations — each new agent run starts a fresh browser context","Memory overhead scales with session count; concurrent sessions consume cloud resources proportionally","Debugging multi-step failures requires access to Browserbase logs; limited local visibility into intermediate states","Selector brittleness: CSS/XPath selectors break if page structure changes; no built-in selector repair or fuzzy matching","Timeout handling is fixed (typically 5–10 seconds); no per-action timeout customization in current MCP schema","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.05,"quality":0.45,"ecosystem":0.39999999999999997,"match_graph":0.25,"freshness":0.52,"weights":{"adoption":0.25,"quality":0.25,"ecosystem":0.15,"match_graph":0.23,"freshness":0.12}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"active","updated_at":"2026-06-17T09:51:02.371Z","last_scraped_at":"2026-05-03T14:00:15.503Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=browserbase","compare_url":"https://unfragile.ai/compare?artifact=browserbase"}},"signature":"dZjezo9N0BKVK7lcvdFRZh32tUUobbpmZionVWeEOXuGseZwkdQeDEceD+ocfgyhe1c6vrrYT5zkJGNGr0vvDQ==","signedAt":"2026-06-21T19:26:52.312Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/browserbase","artifact":"https://unfragile.ai/browserbase","verify":"https://unfragile.ai/api/v1/verify?slug=browserbase","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}