Get historical time-series price data for an item at a given interval (5m, 1h, 6h, 24h). Returns up to 365 data points.
AI agents call get_ge_timeseries to retrieve information from OSRS MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries the Grand Exchange (GE) price history without creating, modifying, deleting, or executing any actions. It is purely informational—accessing historical game market data. An AI agent misusing this to collect price trends poses minimal direct risk, as it cannot manipulate markets, delete data, or trigger external operations.
From the tool's definition The tool 'get_ge_timeseries' retrieves historical price data for an item at specified intervals; it performs a data query operation (GET) with no modification or side effects.
Documented attack patterns abuse exactly the kind of access get_ge_timeseries gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OSRS MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_ge_timeseries:
{
"version": "1",
"default": "deny",
"tools": {
"get_ge_timeseries": {}
}
}get_ge_timeseries 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 historical time-series price data for an item at a given interval (5m, 1h, 6h, 24h). Returns up to 365 data points. It is categorised as a Read tool in the OSRS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OSRS MCP Server MCP server in PolicyLayer and add a rule for get_ge_timeseries: 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 OSRS MCP Server. Nothing to install.
get_ge_timeseries 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_ge_timeseries 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_ge_timeseries. 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_ge_timeseries is provided by the OSRS MCP Server MCP server (jayarrowz/mcp-osrs). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from OSRS 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.
23 OSRS MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.