Fetch real-time GCP Compute Engine pricing from instances.vantage.sh. Returns 287 instance types with on-demand and spot pricing across 40+ regions.
AI agents call refresh_gcp_pricing to retrieve information from Cloud Cost MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves pricing data without side effects. It does not create, modify, delete, or execute operations; it merely fetches and returns structured pricing information. The blast radius of misuse is minimal—an agent could retrieve pricing data repeatedly but cannot alter infrastructure, move funds, or trigger deployments. Low severity is appropriate for a read-only pricing lookup.
From the tool's definition Tool name 'refresh_gcp_pricing' and description 'Fetch real-time GCP Compute Engine pricing' indicates data retrieval only.
Attacks that exploit this kind of access
Fetch real-time GCP Compute Engine pricing from instances.vantage.sh. Returns 287 instance types with on-demand and spot pricing across 40+ regions. It is categorised as a Read tool in the Cloud Cost MCP MCP Server, which means it retrieves data without modifying state.
Register the Cloud Cost MCP server in PolicyLayer and add a rule for refresh_gcp_pricing: 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 Cloud Cost MCP. Nothing to install.
refresh_gcp_pricing 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 refresh_gcp_pricing 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 refresh_gcp_pricing. 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.
refresh_gcp_pricing is provided by the Cloud Cost MCP server (jasonwilbur/cloud-cost-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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