Get Spot VM eviction rates for specified SKUs and regions. Requires Azure authentication (az login or environment variables). Returns eviction rate categories: 0-5%, 5-10%, 10-15%, 15-20%, 20%+.
AI agents call spot_eviction_rates to retrieve information from Azure Pricing MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a query operation that retrieves informational data about Spot VM eviction rates for specified SKUs and regions. It has no side effects—it does not create, modify, delete, or execute anything. While authentication is required, the operation itself is purely informational retrieval.
From the tool's definition Tool retrieves and returns eviction rate data (eviction rate categories: 0-5%, 5-10%, 10-15%, 15-20%, 20%+) without modifying any resources or triggering any operations.
Documented attack patterns abuse exactly the kind of access spot_eviction_rates gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Azure Pricing MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for spot_eviction_rates:
{
"version": "1",
"default": "deny",
"tools": {
"spot_eviction_rates": {}
}
}spot_eviction_rates is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Get Spot VM eviction rates for specified SKUs and regions. Requires Azure authentication (az login or environment variables). Returns eviction rate categories: 0-5%, 5-10%, 10-15%, 15-20%, 20%+. It is categorised as a Read tool in the Azure Pricing MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Azure Pricing MCP Server MCP server in PolicyLayer and add a rule for spot_eviction_rates: 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 Azure Pricing MCP Server. Nothing to install.
spot_eviction_rates 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 spot_eviction_rates 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 spot_eviction_rates. 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.
spot_eviction_rates is provided by the Azure Pricing MCP Server MCP server (msftnadavbh/azurepricingmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Azure Pricing 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.
18 Azure Pricing MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.