crawlbase-mcp

Item: crawlbase-mcp
Rating: 58
Author: M8ven

Crawlbase MCP Server connects AI agents and LLMs with real-time web data. It powers Claude, Cursor, and Windsurf integrations with battle-tested web scraping, JavaScript rendering, and anti-bot protection enabling structured, live data inside your AI workflows.

→ crawlbase/crawlbase-mcp · listed on github_topic

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// key findings

⚠️

Known vulnerabilities in dependencies: 7 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

🔐

You'll be asked for 2 credentials: CRAWLBASE_JS_TOKEN, CRAWLBASE_TOKEN

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// known CVEs in dependencies7 high1 medium22 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@hono/node-server@1.19.6GHSA-wc8c-qw6v-h7f6

@hono/node-server has authorization bypass for protected static paths via encoded slashes in Serve Static Middleware

high@modelcontextprotocol/sdk@1.22.0GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.22.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.22.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highhono@4.10.6GHSA-3vhc-576x-3qv4

Hono JWK Auth Middleware has JWT algorithm confusion when JWK lacks "alg" (untrusted header.alg fallback)

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

🔐 secretCRAWLBASE_JS_TOKEN— "": "your_js_token_here"

🔐 secretCRAWLBASE_TOKEN— "": "your_token_here",

configMCP_PORT— CRAWLBASE_TOKEN=your_token CRAWLBASE_JS_TOKEN=your_js_token =8080 npm run start:http

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/crawlbase-crawlbase-mcp-vz83f5)](https://m8ven.ai/mcp/crawlbase-crawlbase-mcp-vz83f5)

commit: 66e16b730580417a1813b6a429d09d6c3af6d95e

code hash: a51463a5a3c2771a3f7dc78683ef84e9fe41744ea26b0b436f64afe3edb0e79b

verified: 6/15/2026, 1:28:39 PM

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