web_scrape
Scrape a URL into markdown, HTML, links or metadata. Fetches a single public URL and returns clean content in the requested formats (markdown, html, raw_html, links, metadata). With render=auto the request starts as a fast HTTP fetch and escalates to a real browser when the page is blocked or ren...
This record as markdown: /tools/crawlora-mcp/web-scrape.md
What web_scrape does on Crawlora
AI agents call web_scrape to retrieve information from Crawlora without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
scrapeOption | object | Yes | Scrape options |
Parameters from the server's own tool schema.
Why web_scrape is rated Low
Even though web_scrape only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs web_scrape safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Crawlora, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For web_scrape, this is the rule to start with:
web_scrape is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Crawlora, apply this rule, and every web_scrape call is checked against it from then on.
Questions about web_scrape
Scrape a URL into markdown, HTML, links or metadata. Fetches a single public URL and returns clean content in the requested formats (markdown, html, raw_html, links, metadata). With render=auto the request starts as a fast HTTP fetch and escalates to a real browser when the page is blocked or rendered with JavaScript. only_main_content (default true) strips navigation, headers, footers and other boilerplate before conversion. Only public pages are supported; respect each site's terms of use and robots directives. It is categorised as a Read tool in the Crawlora MCP Server, which means it retrieves data without modifying state.
web_scrape accepts 1 parameter: scrapeOption. Required: scrapeOption. The full parameter table on this page comes from the server's own tool schema.
Register the Crawlora MCP server in PolicyLayer and add a rule for web_scrape: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Crawlora. Nothing to install.
web_scrape is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the web_scrape rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for web_scrape. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
web_scrape is provided by the Crawlora MCP server (crawlora-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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