Check access status and day pass validity for a Unicity ID
AI agents call check_access to retrieve information from Sphere MCP Gaming 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 read-only lookup of access and subscription status for a given user ID. It has no side effects: it does not create, modify, or delete passes; does not process payments; and does not execute arbitrary code. While it is part of a payment-gated gaming system, the tool itself only queries state.
From the tool's definition Tool description states it 'Check[s] access status and day pass validity' — a query operation that retrieves the state of an existing access credential without modifying, deleting, or moving money.
Attacks that exploit this kind of access
Check access status and day pass validity for a Unicity ID. It is categorised as a Read tool in the Sphere MCP Gaming Server MCP Server, which means it retrieves data without modifying state.
Register the Sphere MCP Gaming Server MCP server in PolicyLayer and add a rule for check_access: 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 Sphere MCP Gaming Server. Nothing to install.
check_access 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 check_access 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 check_access. 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.
check_access is provided by the Sphere MCP Gaming Server MCP server (mastap/unicity-mcp-gaming). 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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