Get the MCP server version to verify it has been restarted with latest code changes.
AI agents call get_server_version to retrieve information from Marqeta DiVA API MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a pure read operation that retrieves metadata about the server itself. It has no ability to access, modify, delete, or execute any financial or operational functionality. The blast radius of misuse is negligible—an agent could only learn the current server version number.
From the tool's definition Tool name 'get_server_version' and description 'Get the MCP server version' indicate a simple query/retrieval operation that returns version information with no side effects or data modification.
Attacks that exploit this kind of access
Get the MCP server version to verify it has been restarted with latest code changes. It is categorised as a Read tool in the Marqeta DiVA API MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Marqeta DiVA API MCP Server MCP server in PolicyLayer and add a rule for get_server_version: 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 Marqeta DiVA API MCP Server. Nothing to install.
get_server_version 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 get_server_version 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 get_server_version. 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.
get_server_version is provided by the Marqeta DiVA API MCP Server MCP server (zvika-finally/marqeta-diva-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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