Medium Risk

call_webhook

Call a webhook with the specified parameters

Risk signalsHandles credentials or secrets (token)

Part of the Binalyze AIR MCP Server server.

call_webhook can modify Binalyze AIR MCP Server data, with no limits today. PolicyLayer puts allow, deny, and rate-limit rules on every call. Live in minutes.

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AI agents use call_webhook to create or modify resources in Binalyze AIR MCP Server. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

Without a policy, an AI agent could call call_webhook repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Binalyze AIR MCP Server.

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "call_webhook": {
      "limits": [
        {
          "counter": "call_webhook_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

See the full Binalyze AIR MCP Server policy for all 116 tools.

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These attack patterns abuse exactly the kind of access call_webhook gives an agent. Each links to the full case and the policy that stops it:

Browse the full MCP Attack Database →

Every attack above starts with a tool call. PolicyLayer checks each one against your policy first, so call_webhook only ever does what you allow.

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Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.

What does the call_webhook tool do? +

Call a webhook with the specified parameters. It is categorised as a Write tool in the Binalyze AIR MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on call_webhook? +

Register the Binalyze AIR MCP Server MCP server in PolicyLayer and add a rule for call_webhook: 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 Binalyze AIR MCP Server. Nothing to install.

What risk level is call_webhook? +

call_webhook is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit call_webhook? +

Yes. Add a rate_limit block to the call_webhook 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.

How do I block call_webhook completely? +

Set action: deny in the PolicyLayer policy for call_webhook. 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.

What MCP server provides call_webhook? +

call_webhook is provided by the Binalyze AIR MCP Server MCP server (binalyze/air-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Binalyze AIR MCP Server tool call.

Deterministic rules across all 116 Binalyze AIR MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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