Firecrawl MCP服务器

Required for cloud API

export FIRECRAWL_API_KEY=your-api-key

Required for self-hosted

export FIRECRAWL_API_URL=https://firecrawl.your-domain.com

Install dependencies

npm install

Installation

Manual Installation

npm install -g firecrawl-mcp

Installing via Smithery (Legacy)

To install Firecrawl for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @mendableai/mcp-server-firecrawl --client claude

Build

npm run build

Configuration Examples

For cloud API usage with custom retry and credit monitoring:

```bash

Usage with Claude Desktop

Add this to your claude_desktop_config.json:

{
  "mcpServers": {
    "mcp-server-firecrawl": {
      "command": "npx",
      "args": ["-y", "firecrawl-mcp"],
      "env": {
        "FIRECRAWL_API_KEY": "YOUR_API_KEY_HERE",

        "FIRECRAWL_RETRY_MAX_ATTEMPTS": "5",
        "FIRECRAWL_RETRY_INITIAL_DELAY": "2000",
        "FIRECRAWL_RETRY_MAX_DELAY": "30000",
        "FIRECRAWL_RETRY_BACKOFF_FACTOR": "3",

        "FIRECRAWL_CREDIT_WARNING_THRESHOLD": "2000",
        "FIRECRAWL_CREDIT_CRITICAL_THRESHOLD": "500"
      }
    }
  }
}

Format Selection Guide

When using scrape or batch_scrape, choose the right format:

• JSON format (recommended for most cases): Use when you need specific data from a page. Define a schema based on what you need to extract. This keeps responses small and avoids context window overflow.
• Markdown format (use sparingly): Only when you genuinely need the full page content, such as reading an entire article for summarization or analyzing page structure.

Configuration

Environment Variables

Required for Cloud API

• FIRECRAWL_API_KEY: Your Firecrawl API key
• Required when using cloud API (default)
• Optional when using self-hosted instance with FIRECRAWL_API_URL
• FIRECRAWL_API_URL (Optional): Custom API endpoint for self-hosted instances
• Example: https://firecrawl.your-domain.com
• If not provided, the cloud API will be used (requires API key)

Optional Configuration

Retry Configuration

• FIRECRAWL_RETRY_MAX_ATTEMPTS: Maximum number of retry attempts (default: 3)
• FIRECRAWL_RETRY_INITIAL_DELAY: Initial delay in milliseconds before first retry (default: 1000)
• FIRECRAWL_RETRY_MAX_DELAY: Maximum delay in milliseconds between retries (default: 10000)
• FIRECRAWL_RETRY_BACKOFF_FACTOR: Exponential backoff multiplier (default: 2)

Credit Usage Monitoring

• FIRECRAWL_CREDIT_WARNING_THRESHOLD: Credit usage warning threshold (default: 1000)
• FIRECRAWL_CREDIT_CRITICAL_THRESHOLD: Credit usage critical threshold (default: 100)

Optional retry configuration

export FIRECRAWL_RETRY_MAX_ATTEMPTS=5 # Increase max retry attempts export FIRECRAWL_RETRY_INITIAL_DELAY=2000 # Start with 2s delay export FIRECRAWL_RETRY_MAX_DELAY=30000 # Maximum 30s delay export FIRECRAWL_RETRY_BACKOFF_FACTOR=3 # More aggressive backoff

Optional credit monitoring

export FIRECRAWL_CREDIT_WARNING_THRESHOLD=2000 # Warning at 2000 credits export FIRECRAWL_CREDIT_CRITICAL_THRESHOLD=500 # Critical at 500 credits

For self-hosted instance:

Optional authentication for self-hosted

export FIRECRAWL_API_KEY=your-api-key # If your instance requires auth

Custom retry configuration

export FIRECRAWL_RETRY_MAX_ATTEMPTS=10 export FIRECRAWL_RETRY_INITIAL_DELAY=500 # Start with faster retries ```

System Configuration

The server includes several configurable parameters that can be set via environment variables. Here are the default values if not configured:

const CONFIG = {
  retry: {
    maxAttempts: 3, // Number of retry attempts for rate-limited requests
    initialDelay: 1000, // Initial delay before first retry (in milliseconds)
    maxDelay: 10000, // Maximum delay between retries (in milliseconds)
    backoffFactor: 2, // Multiplier for exponential backoff
  },
  credit: {
    warningThreshold: 1000, // Warn when credit usage reaches this level
    criticalThreshold: 100, // Critical alert when credit usage reaches this level
  },
};

These configurations control:

1. Retry Behavior

• Automatically retries failed requests due to rate limits
• Uses exponential backoff to avoid overwhelming the API
• Example: With default settings, retries will be attempted at:
• 1st retry: 1 second delay
• 2nd retry: 2 seconds delay
• 3rd retry: 4 seconds delay (capped at maxDelay)

2. Credit Usage Monitoring - Tracks API credit consumption for cloud API usage - Provides warnings at specified thresholds - Helps prevent unexpected service interruption - Example: With default settings: - Warning at 1000 credits remaining - Critical alert at 100 credits remaining

Quick Reference Table

Running on VS Code

For one-click installation, click one of the install buttons below...

For manual installation, add the following JSON block to your User Settings (JSON) file in VS Code. You can do this by pressing Ctrl + Shift + P and typing Preferences: Open User Settings (JSON).

{
  "mcp": {
    "inputs": [
      {
        "type": "promptString",
        "id": "apiKey",
        "description": "Firecrawl API Key",
        "password": true
      }
    ],
    "servers": {
      "firecrawl": {
        "command": "npx",
        "args": ["-y", "firecrawl-mcp"],
        "env": {
          "FIRECRAWL_API_KEY": "${input:apiKey}"
        }
      }
    }
  }
}

Optionally, you can add it to a file called .vscode/mcp.json in your workspace. This will allow you to share the configuration with others:

{
  "inputs": [
    {
      "type": "promptString",
      "id": "apiKey",
      "description": "Firecrawl API Key",
      "password": true
    }
  ],
  "servers": {
    "firecrawl": {
      "command": "npx",
      "args": ["-y", "firecrawl-mcp"],
      "env": {
        "FIRECRAWL_API_KEY": "${input:apiKey}"
      }
    }
  }
}