Bring Proxy
to LangChain
Create your Vinkius account to connect Crawlbase to LangChain and start using all 10 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Crawlbase MCP Server?
Connect your Crawlbase (formerly ProxyCrawl) account to any AI agent and take full control of your web scraping and anonymous crawling workflows through natural conversation.
What you can do
- Standard Scraper — Identify bounded routing spaces inside the headless engine to extract explicitly attached HTML content via datacenter proxies
- JS Rendering — Discover disconnected physical limits tracking exactly what JS-rendered frames expose to extract exact single-page UI bounds
- Structured JSON Extraction — Analyzes specific global bounds driving auto-extraction pipelines to force raw HTTP outputs into structured JSON format strictly
- Screenshot Capture — Dispatch automated validation checks to generate valid proxy endpoints returning configured Crawlbase screenshot URLs
- Specialized Scraping — Leverage dedicated algorithms for Amazon products, LinkedIn profiles, Facebook pages, and Twitter (X) graph profiles natively
- Search Engine Discovery — Explain explicitly mapped proxy lists targeting Google domains to parse SERP limits and bypass CAPTCHAs limitlessly
- Custom Proxy Management — Provision highly-available request payloads generating custom proxies with specific headers and crawling logic
How it works
- Subscribe to this server
- Enter your Crawlbase Normal Token and your optional JavaScript Token (found in your Crawlbase Dashboard)
- Start scraping and crawling from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Data Analysts — extract structured web data and search engine results without writing complex scraping scripts
- Growth Hackers — monitor competitor products on Amazon or social profiles on LinkedIn and Twitter in real-time
- Developers — test and debug web extraction pipelines and JS-rendering logic through natural conversation
- Market Researchers — perform deep web crawls and capture snapshots of target sites for offline analysis
Built-in capabilities (10)
Provision a highly-available Request Payload generating Custom proxies
Dispatch an automated validation check routing explicit Web Snapshot domains
Inspect deep internal arrays mitigating specific E-Commerce constraints
Enumerate explicitly attached structured rules exporting active Social Pages
Identify precise active arrays spanning rented Context domains for Search
crawlbase.com` datacenter proxies. Identify bounded routing spaces inside the Headless Crawlbase Engine
Retrieve explicit Cloud logging tracing explicit Payload IDs limitlessly
Perform structural extraction of properties driving active Fields
Retrieve the exact structural matching verifying Blueprint constraints
Fetch elaborate explicit mapped limits via Crawlbase X extraction
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with Crawlbase through native MCP adapters. Connect 10 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
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The largest ecosystem of integrations, chains, and agents. combine Crawlbase MCP tools with 500+ LangChain components
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Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
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LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
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Memory and conversation persistence let agents maintain context across Crawlbase queries for multi-turn workflows
Crawlbase in LangChain
Why run Crawlbase with Vinkius?
The Crawlbase connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 10 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.
* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.
Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect Crawlbase using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
Crawlbase and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Crawlbase to LangChain through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Crawlbase for LangChain
Every request between LangChain and Crawlbase is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
When should I use the JavaScript (JS) Token versus the Normal Token?
Use the Normal Token for fast, static HTML extraction. Switch to the JavaScript Token when the target site uses frameworks like React or Angular, where content is rendered dynamically in the browser. The 'scrape_js_rendered' tool requires the JS Token to function.
Can my agent bypass CAPTCHAs while scraping Google or LinkedIn?
Yes. Crawlbase is built to handle CAPTCHAs and blocks natively. When you use specialized tools like 'scrape_google_serp' or 'scrape_linkedin', the agent routes your requests through Crawlbase's advanced proxy infrastructure to ensure successful data extraction.
How do I get a structured JSON response instead of raw HTML?
Use the 'scrape_json_format' tool or the specialized scraper tools (Amazon, LinkedIn, etc.). These trigger Crawlbase's auto-extraction pipelines, which analyze the page structure and return specific data fields in a clean JSON format.
How does LangChain connect to MCP servers?
Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.
Which LangChain agent types work with MCP?
All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.
Can I trace MCP tool calls in LangSmith?
Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.
MultiServerMCPClient not found
Install: pip install langchain-mcp-adapters
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