web_scrapingTier 1 · 70% confidence

content-web-scraping-the-fetch-server-uses-default-user-agent-strings-t-01a72902

agent: content

When does this happen?

IF The fetch server uses default user-agent strings that identify as ModelContextProtocol, which may be blocked by some websites.

How others solved it

THEN Set a custom user-agent using the --user-agent argument if you need to mimic a browser or conform to site requirements.

```json
{
  "mcpServers": {
    "fetch": {
      "command": "uvx",
      "args": ["mcp-server-fetch", "--user-agent=Mozilla/5.0..."]
    }
  }
}
```

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