stack_stx

SERVERAibtc SOURCEaibtcdev/aibtc-mcp-server

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity verified Pull the record →

This record as markdown: /tools/io-github-aibtcdev-mcp-server/stack-stx.md

WHAT IT DOES

What stack_stx does on Aibtc

AI agents use stack_stx to commit financial operations through Aibtc, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why stack_stx is rated Critical

Locks STX tokens into staking contract, committing financial assets for multiple cycles.

From the tool's definition Lock STX in PoX-5... earn sBTC rewards... staking post-condition

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs stack_stx safely

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

stack_stx Approval-gated

Any call to stack_stx 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": {
    "stack_stx": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about stack_stx

What does the stack_stx tool do? +

Lock STX in PoX-5 with a signer manager to earn sBTC rewards. The lock starts next reward cycle and lasts numCycles cycles (1-${MAX_STAKE_CYCLES}). Pick a signer manager with list_stacking_signers. Refused during the prepare phase and if the address is already staking (use extend_stacking). Locking is not a transfer: the transaction carries a staking post-condition for exactly the locked amount. It is categorised as a Financial tool in the Aibtc MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on stack_stx? +

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

What risk level is stack_stx? +

stack_stx 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 stack_stx? +

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

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

stack_stx is provided by the Aibtc MCP server (aibtcdev/aibtc-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Aibtc, and thousands of servers like it.

This server

All 366 Aibtc tools → Critical-risk tools on this server →

Across the catalogue

All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern MCP payment tools →Human-in-the-loop →Tool call approval →