PreClick — An MCP-native URL preflight scanning service for autonomous agents (formerly URLCheck).

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PreClick scans links for threats and confirms intent match with high accuracy before agents click.

Security

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Tool list from our last check. Connect live to refresh it.

url_scanner_async_scan Read-only

Submit a URL for asynchronous security analysis. Returns immediately with a task_id. Poll with url_scanner_async_task_status to check progress, then url_scanner_async_task_result to get the scan result. Async counterpart of url_scanner_scan for clients without native MCP Tasks support.

urlstring, required

The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed.

Tools (6)

url_scanner_async_scan

read-only

Argument	Type	Description
url*	string	The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed.

Input schema (JSON)

{
  "type": "object",
  "title": "AsyncScanRequest",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "description": "The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed."
    }
  },
  "description": "Request parameters for url_scanner_async_scan tool."
}

url_scanner_async_scan_with_intent

Submit a URL with optional user intent for asynchronous security analysis. Returns immediately with a task_id. Poll with url_scanner_async_task_status to check progress, then url_scanner_async_task_result to get the scan result. Async counterpart of url_scanner_scan_with_intent for clients without native MCP Tasks support.

read-only

Argument	Type	Description
url*	string	The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed.
intent	string \| null	Optional user intent for visiting the URL. Recommended for additional context.

Input schema (JSON)

{
  "type": "object",
  "title": "AsyncScanWithIntentRequest",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "description": "The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed."
    },
    "intent": {
      "type": [
        "string",
        "null"
      ],
      "description": "Optional user intent for visiting the URL. Recommended for additional context."
    }
  },
  "description": "Request parameters for url_scanner_async_scan_with_intent tool."
}

url_scanner_async_task_result

Retrieve the result of an asynchronous scan task. If completed, returns the full scan result (risk_score, confidence, agent_access_directive, etc.). If still running, returns status with retry_after_ms — call again after that interval. Non-blocking.

read-only

Argument	Type	Description
task_id*	string	The task ID to retrieve the result for.

Input schema (JSON)

{
  "type": "object",
  "title": "AsyncTaskResultRequest",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "task_id"
  ],
  "properties": {
    "task_id": {
      "type": "string",
      "description": "The task ID to retrieve the result for."
    }
  },
  "description": "Request parameters for url_scanner_async_task_result tool."
}

url_scanner_async_task_status

Check the status of an asynchronous scan task. Returns the current task status using native MCP task semantics (working, completed, failed, cancelled) without blocking. Use url_scanner_async_task_result to retrieve the result once completed.

read-only

Argument	Type	Description
task_id*	string	The task ID to check status for.

Input schema (JSON)

{
  "type": "object",
  "title": "AsyncTaskStatusRequest",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "task_id"
  ],
  "properties": {
    "task_id": {
      "type": "string",
      "description": "The task ID to check status for."
    }
  },
  "description": "Request parameters for url_scanner_async_task_status tool."
}

url_scanner_scan

Analyze a URL for security threats (synchronous, blocks until complete or timeout). Returns risk score, confidence, agent access guidance, and intent_alignment (always not_provided for this tool; use url_scanner_scan_with_intent for intent context). For long-running scans, prefer url_scanner_async_scan which returns immediately with a task_id for polling via url_scanner_async_task_result.

read-only

Argument	Type	Description
url*	string	The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed.

Input schema (JSON)

{
  "type": "object",
  "title": "ScanRequest",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "description": "The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed."
    }
  },
  "description": "Request parameters for url_scanner_scan tool.\n\nThe URL parameter accepts both encoded and unencoded URLs.\nIf no scheme is provided, https:// is assumed."
}

url_scanner_scan_with_intent

Analyze a URL for security threats with optional user intent context (synchronous, blocks until complete or timeout). Returns risk score, confidence, agent access guidance, and intent_alignment. For long-running scans, prefer url_scanner_async_scan_with_intent which returns immediately with a task_id for polling via url_scanner_async_task_result.

read-only

Argument	Type	Description
url*	string	The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed.
intent	string \| null	Optional user intent for visiting the URL. Recommended for additional context.

Input schema (JSON)

{
  "type": "object",
  "title": "ScanWithIntentRequest",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "description": "The URL to analyze. Must be HTTP or HTTPS. If no scheme provided, https:// is assumed."
    },
    "intent": {
      "type": [
        "string",
        "null"
      ],
      "description": "Optional user intent for visiting the URL. Recommended for additional context."
    }
  },
  "description": "Request parameters for url_scanner_scan_with_intent tool.\n\nThe URL parameter accepts both encoded and unencoded URLs.\nIf no scheme is provided, https:// is assumed."
}