pump_buy

THE RISK

Critical Risk

This tool executes a real cryptocurrency purchase using SOL, committing financial resources to buy tokens on-chain. It involves spending actual cryptocurrency (SOL) to acquire pump.fun tokens, which is a direct financial transaction that moves money/assets. Misuse could result in significant financial loss through unwanted token purchases, rug pulls, or manipulation.

From the tool's definition Buy a pump.fun token with SOL... Requires AGENTI_SOLANA_PRIVATE_KEY

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

HOW TO CONTROL PUMP_BUY

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 pump_buy:

policy.json

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

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

Create a free account and register Agenti — nothing to install.
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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All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
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FAQ

What does the pump_buy tool do? +

Buy a pump.fun token with SOL. Works on bonding curve and graduated (PumpSwap AMM) tokens. 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 pump_buy? +

Register the Agenti MCP server in PolicyLayer and add a rule for pump_buy: 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 pump_buy? +

pump_buy 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 pump_buy? +

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

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

pump_buy 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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73 Agenti tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT PUMP_BUY ON AGENTI DOES

// THE RISK

// HOW TO CONTROL PUMP_BUY

// EXPLORE