Verify an OpenGolf Chain export (public tool, no key). Recomputes the hash links + (optionally) the checkpoint signature and Merkle root; reports any tampering and where.
AI agents call verify_chain to retrieve information from OpenGolfAPI 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 cryptographic verification and integrity checking (hash comparison, signature validation, Merkle root computation). These are read-only diagnostic operations that query the state of a data structure and report findings. No data is created, modified, deleted, or executed as a result of calling this tool.
From the tool's definition Tool description states it 'Recomputes the hash links' and 'reports any tampering' — these are verification and validation operations with no side effects.
Risk signalsAdmin/system-level operation
Attacks that exploit this kind of access
Verify an OpenGolf Chain export (public tool, no key). Recomputes the hash links + (optionally) the checkpoint signature and Merkle root; reports any tampering and where. It is categorised as a Read tool in the OpenGolfAPI MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenGolfAPI MCP Server MCP server in PolicyLayer and add a rule for verify_chain: 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 OpenGolfAPI MCP Server. Nothing to install.
verify_chain 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 verify_chain 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 verify_chain. 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.
verify_chain is provided by the OpenGolfAPI MCP Server MCP server (opengolfapi/mcp-server). 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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