Read-only list of indexed XRC-137/XRC-729 contracts globally or filtered by owner/type.
AI agents call list_xrc_contracts to retrieve information from XGR MCP Gateway 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 query operation with no side effects. It retrieves indexed blockchain contract information but cannot create, modify, delete, execute code, or move funds. The explicit 'Read-only' designation in the description confirms this classification. The blast radius of misuse is minimal—an AI agent could only retrieve contract metadata without causing harm.
From the tool's definition Tool name includes 'list' and description explicitly states 'Read-only list of indexed XRC-137/XRC-729 contracts'. The tool retrieves or queries contract data with optional filters by owner/type, with no capability to modify or delete data.
Attacks that exploit this kind of access
Read-only list of indexed XRC-137/XRC-729 contracts globally or filtered by owner/type. It is categorised as a Read tool in the XGR MCP Gateway MCP Server, which means it retrieves data without modifying state.
Register the XGR MCP Gateway MCP server in PolicyLayer and add a rule for list_xrc_contracts: 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 XGR MCP Gateway. Nothing to install.
list_xrc_contracts 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 list_xrc_contracts 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 list_xrc_contracts. 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.
list_xrc_contracts is provided by the XGR MCP Gateway MCP server (xgr-network/xgr-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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