Return AP2 protocol metadata: version, signing algorithm, mandate kinds,
AI agents call ap2_protocol_info to retrieve information from Tenzro Ledger MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns static protocol information without creating, modifying, deleting, executing code, or initiating financial transactions. It is a read-only informational endpoint typical of protocol introspection mechanisms. The broader server context (payments, staking, bridges) does not change the nature of this specific tool, which has minimal blast radius if misused by an agent.
From the tool's definition Tool returns AP2 protocol metadata: version, signing algorithm, mandate kinds—purely informational data retrieval with no side effects or system modifications.
Attacks that exploit this kind of access
Return AP2 protocol metadata: version, signing algorithm, mandate kinds,. It is categorised as a Read tool in the Tenzro Ledger MCP MCP Server, which means it retrieves data without modifying state.
Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for ap2_protocol_info: 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 Tenzro Ledger MCP. Nothing to install.
ap2_protocol_info 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 ap2_protocol_info 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 ap2_protocol_info. 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.
ap2_protocol_info is provided by the Tenzro Ledger MCP server (https://canton-mcp.tenzro.network/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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