get_transaction_receipt

THE RISK

Low Risk

Why get_transaction_receipt needs a policy

This tool retrieves blockchain transaction data for informational purposes only. It queries confirmation status, gas consumption, and event logs—all non-destructive read operations with no side effects. While the parent server enables financial operations (token transfers), this specific tool performs no writes, executions, or financial transactions.

From the tool's definition Tool name 'get_transaction_receipt' and description 'Get transaction receipt (confirmation status, gas used, logs).

Documented attack patterns abuse exactly the kind of access get_transaction_receipt gives an agent:

POLICY

How to control get_transaction_receipt

PolicyLayer is an MCP gateway — it sits between your AI agents and EVM MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_transaction_receipt:

policy.json

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

get_transaction_receipt is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register EVM MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

Related tools and policies

More EVM MCP Server tools

Financial transfer_erc20 Transfer ERC20 tokens to an address. Uses the configured wallet. Financial transfer_native Transfer native tokens (ETH, MATIC, etc.) to an address. Uses the configured wallet. Financial approve_token_spending Approve a spender (contract) to spend tokens on your behalf. Required before interacting w Execute sign_message Sign an arbitrary message using the configured wallet. Useful for authentication (SIWE), m Execute sign_typed_data Sign structured data (EIP-712) using the configured wallet. Used for gasless transactions, Execute write_contract Execute state-changing functions on a smart contract. Automatically fetches ABI from block Read wait_for_transaction Wait for a transaction to be confirmed (mined). Polls the network until confirmation. Read get_allowance Check the allowance granted to a spender for a token. This tells you how much of a token a

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_transaction_receipt

What does the get_transaction_receipt tool do? +

Get transaction receipt (confirmation status, gas used, logs). Use this to check if a transaction has been confirmed. It is categorised as a Read tool in the EVM MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_transaction_receipt? +

Register the EVM MCP Server MCP server in PolicyLayer and add a rule for get_transaction_receipt: 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 EVM MCP Server. Nothing to install.

What risk level is get_transaction_receipt? +

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

Can I rate-limit get_transaction_receipt? +

Yes. Add a rate_limit block to the get_transaction_receipt 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_transaction_receipt completely? +

Set action: deny in the PolicyLayer policy for get_transaction_receipt. 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_transaction_receipt? +

get_transaction_receipt is provided by the EVM MCP Server MCP server (mcpdotdirect/evm-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every EVM MCP Server tool call.

Start from EVM MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →