stx_deploy_contract · Bitcoin wallet MCP server MCP

WHAT IT DOES

What stx_deploy_contract does on Bitcoin wallet MCP server

AI agents use stx_deploy_contract to commit financial operations through Bitcoin wallet MCP server — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why stx_deploy_contract needs a policy

Deploying a smart contract to a blockchain is a financial operation: it broadcasts an irreversible on-chain transaction that consumes STX tokens as fees and permanently publishes executable code. On a Bitcoin wallet server handling real assets, a misused deployment could commit funds, create malicious contracts to drain wallets, or lock tokens.

From the tool's definition Deploy a Clarity smart contract to the Stacks blockchain

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

stx_deploy_contract Approval-gated

Any call to stx_deploy_contract is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "stx_deploy_contract": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Bitcoin wallet MCP server, so you can run agents against it safely.

FAQ

Questions about stx_deploy_contract

What does the stx_deploy_contract tool do? +

Deploy a Clarity smart contract to the Stacks blockchain. It is categorised as a Financial tool in the Bitcoin wallet MCP server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on stx_deploy_contract? +

Register the Bitcoin wallet MCP server MCP server in PolicyLayer and add a rule for stx_deploy_contract: 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 Bitcoin wallet MCP server. Nothing to install.

What risk level is stx_deploy_contract? +

stx_deploy_contract is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit stx_deploy_contract? +

Yes. Add a rate_limit block to the stx_deploy_contract 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 stx_deploy_contract completely? +

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

stx_deploy_contract is provided by the Bitcoin wallet MCP server MCP server (markmhendrickson/mcp-server-bitcoin). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.