solana_transfer

THE RISK

Critical Risk

This tool irreversibly transfers cryptocurrency (SOL tokens and SPL tokens) from one address to another. It directly commits financial obligations and moves money. Even though it does not create financial liabilities in the traditional sense, the movement of cryptocurrency assets constitutes a financial action with potentially unlimited blast radius if misused by an AI agent.

From the tool's definition Tool description states 'Send SOL or any SPL token to another Solana address' — direct movement of cryptocurrency funds.

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

HOW TO CONTROL SOLANA_TRANSFER

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

policy.json

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

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

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Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

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Go deeper

Critical-risk tools in Agenti → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
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Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

What does the solana_transfer tool do? +

Send SOL or any SPL token to another Solana address. Requires AGENTI_SOLANA_PRIVATE_KEY. It is categorised as a Financial tool in the Agenti MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on solana_transfer? +

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

What risk level is solana_transfer? +

solana_transfer 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 solana_transfer? +

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

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

solana_transfer is provided by the Agenti MCP server (nirholas/agenti). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Agenti tool call.

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// WHAT SOLANA_TRANSFER ON AGENTI DOES

// THE RISK

// HOW TO CONTROL SOLANA_TRANSFER

// EXPLORE