get_gas_estimate

Estimate the gas cost for a transaction on Tempo blockchain.

SERVERTempo SOURCEarome3/tempo-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/arome3-tempo-mcp/get-gas-estimate.md

WHAT IT DOES

What get_gas_estimate does on Tempo

AI agents call get_gas_estimate to retrieve information from Tempo without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_gas_estimate is rated Low

This tool queries blockchain data to return gas cost estimates—a read-only operation with no side effects. While it operates on a financial blockchain, it does not move money, commit financial obligations, or execute transactions. The estimate is informational only. Confidence is high because the name and description are clear and unambiguous.

From the tool's definition Tool name 'get_gas_estimate' and description 'Estimate the gas cost for a transaction' indicate a query operation that retrieves cost information without modifying state or executing transactions.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_gas_estimate safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Tempo, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_gas_estimate, this is the rule to start with:

get_gas_estimate Allowed

get_gas_estimate is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_gas_estimate": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Tempo, apply this rule, and every get_gas_estimate call is checked against it from then on.

FAQ

Questions about get_gas_estimate

What does the get_gas_estimate tool do? +

Estimate the gas cost for a transaction on Tempo blockchain. It is categorised as a Read tool in the Tempo MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_gas_estimate? +

Register the Tempo MCP server in PolicyLayer and add a rule for get_gas_estimate: 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 Tempo. Nothing to install.

What risk level is get_gas_estimate? +

get_gas_estimate is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_gas_estimate? +

Yes. Add a rate_limit block to the get_gas_estimate 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.

How do I block get_gas_estimate completely? +

Set action: deny in the PolicyLayer policy for get_gas_estimate. 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.

What MCP server provides get_gas_estimate? +

get_gas_estimate is provided by the Tempo MCP server (arome3/tempo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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