AI agents call GetV1InstancesWebhookEndpointsSecret to retrieve information from BlindPay MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves a webhook secret, which is a read operation with no side effects. However, webhook secrets are sensitive credentials used for request validation and authentication, so exposure or leakage could enable unauthorized webhook manipulation or spoofing. While categorized as Read (the primary action), the medium severity reflects the sensitivity of the credential being accessed.
From the tool's definition Tool name contains 'Get' and description states 'Retrieve Webhook Secret', indicating data retrieval with no modification or deletion.
Documented attack patterns abuse exactly the kind of access GetV1InstancesWebhookEndpointsSecret gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and BlindPay MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for GetV1InstancesWebhookEndpointsSecret:
{
"version": "1",
"default": "deny",
"tools": {
"GetV1InstancesWebhookEndpointsSecret": {}
}
}GetV1InstancesWebhookEndpointsSecret is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Retrieve Webhook Secret. It is categorised as a Read tool in the BlindPay MCP Server MCP Server, which means it retrieves data without modifying state.
Register the BlindPay MCP Server MCP server in PolicyLayer and add a rule for GetV1InstancesWebhookEndpointsSecret: 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 BlindPay MCP Server. Nothing to install.
GetV1InstancesWebhookEndpointsSecret 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 GetV1InstancesWebhookEndpointsSecret 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 GetV1InstancesWebhookEndpointsSecret. 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.
GetV1InstancesWebhookEndpointsSecret is provided by the BlindPay MCP Server MCP server (blindpaylabs/blindpay-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from BlindPay MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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81 BlindPay MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.