Convert a Steam vanity URL (custom profile name) to a 64-bit Steam ID. Requires STEAM_API_KEY.
AI agents call steam_resolveVanityURL to retrieve information from Steam 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 simple lookup/resolution operation — it takes a vanity URL string and returns a Steam ID. It reads data from Steam's API with no side effects, no modifications, and no destructive actions. Severity is low because the worst misuse is resolving a username to an ID, which is non-sensitive public information.
From the tool's definition Convert a Steam vanity URL (custom profile name) to a 64-bit Steam ID
Attacks that exploit this kind of access
Convert a Steam vanity URL (custom profile name) to a 64-bit Steam ID. Requires STEAM_API_KEY. It is categorised as a Read tool in the Steam MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Steam MCP Server MCP server in PolicyLayer and add a rule for steam_resolveVanityURL: 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 Steam MCP Server. Nothing to install.
steam_resolveVanityURL 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 steam_resolveVanityURL 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 steam_resolveVanityURL. 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.
steam_resolveVanityURL is provided by the Steam MCP Server MCP server (tmhsdigital/steam-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.
Teams ship this data inside their own products. See what a licence covers →