Get a block by height with its transactions and metadata.
AI agents call get_block 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 is a straightforward data retrieval operation. It queries blockchain state (a block at a specific height) and returns immutable historical data. There are no side effects, no reversible modifications, no code execution, no data destruction, and no financial movements. The blast radius of misuse is minimal—an agent could only retrieve information already on the public ledger.
From the tool's definition Tool name 'get_block' and description 'Get a block by height with its transactions and metadata' indicate a read-only query operation that retrieves existing blockchain data without modification, creation, deletion, or execution of arbitrary code.
Attacks that exploit this kind of access
Get a block by height with its transactions and metadata. 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 get_block: 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.
get_block 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_block 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_block. 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_block 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.
get_block is one line of Tenzro Ledger's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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