axelar_call_contract · Tenzro Ledger MCP: Risk & Policy

WHAT IT DOES

What axelar_call_contract does on Tenzro Ledger MCP

AI agents invoke axelar_call_contract to trigger actions in Tenzro Ledger MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why axelar_call_contract needs a policy

This tool dispatches a cross-chain General Message Passing (GMP) call_contract message via the Axelar network. It triggers external smart contract execution across blockchains, which constitutes an Execute-category action. The blast radius is high because it can invoke arbitrary contract logic on destination chains, potentially moving assets or changing state across multiple blockchains irreversibly.

From the tool's definition Dispatch an Axelar GMP `call_contract` message

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

axelar_call_contract Rate-limited

axelar_call_contract stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "axelar_call_contract": {
      "limits": [
        {
          "counter": "axelar_call_contract_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about axelar_call_contract

What does the axelar_call_contract tool do? +

Dispatch an Axelar GMP call_contract message. It is categorised as a Execute tool in the Tenzro Ledger MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on axelar_call_contract? +

Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for axelar_call_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 Tenzro Ledger MCP. Nothing to install.

What risk level is axelar_call_contract? +

axelar_call_contract is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit axelar_call_contract? +

Yes. Add a rate_limit block to the axelar_call_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 axelar_call_contract completely? +

Set action: deny in the PolicyLayer policy for axelar_call_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 axelar_call_contract? +

axelar_call_contract is provided by the Tenzro Ledger MCP server (https://canton-mcp.tenzro.network/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.