Send multiple requests to a webhook in batch. Useful for load testing or sending multiple test payloads at once.
AI agents invoke send_multiple_requests to trigger actions in Webhook Site MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
This tool triggers external HTTP requests to webhook endpoints in batch, which constitutes executing operations against external systems. The 'load testing' use case implies potentially high-volume request generation that could affect external services. It's not merely reading data, nor does it destroy data — it executes network operations with side effects on target systems.
From the tool's definition Send multiple requests to a webhook in batch. Useful for load testing or sending multiple test payloads at once.
Documented attack patterns abuse exactly the kind of access send_multiple_requests gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Webhook Site MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for send_multiple_requests:
{
"version": "1",
"default": "deny",
"tools": {
"send_multiple_requests": {
"limits": [
{
"counter": "send_multiple_requests_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}send_multiple_requests stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
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Send multiple requests to a webhook in batch. Useful for load testing or sending multiple test payloads at once. It is categorised as a Execute tool in the Webhook Site MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Webhook Site MCP Server MCP server in PolicyLayer and add a rule for send_multiple_requests: 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 Webhook Site MCP Server. Nothing to install.
send_multiple_requests is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the send_multiple_requests 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 send_multiple_requests. 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.
send_multiple_requests is provided by the Webhook Site MCP Server MCP server (zebbern/webhook-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Webhook Site MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
23 Webhook Site MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.