Fetch VTHO rewards per block via /api/v1/validators/blocks. Returns blockReward (base), priorityReward (mempool priority fees), total, and the split into delegatorRewards and validatorRewards. Filter by blockNumber, validator, and status. Use status=VALIDATED for produced blocks or status=MISSED ...
AI agents call getValidatorBlockRewards to retrieve information from VeChain MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Even though getValidatorBlockRewards only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
Fetch VTHO rewards per block via /api/v1/validators/blocks. Returns blockReward (base), priorityReward (mempool priority fees), total, and the split into delegatorRewards and validatorRewards. Filter by blockNumber, validator, and status. Use status=VALIDATED for produced blocks or status=MISSED for blocks the validator missed. Supports pagination and sort direction. It is categorised as a Read tool in the VeChain MCP Server MCP Server, which means it retrieves data without modifying state.
Register the VeChain MCP Server MCP server in PolicyLayer and add a rule for getValidatorBlockRewards: 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 VeChain MCP Server. Nothing to install.
getValidatorBlockRewards 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 getValidatorBlockRewards 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 getValidatorBlockRewards. 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.
getValidatorBlockRewards is provided by the VeChain MCP Server MCP server (vechain/vechain-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.