AI agents use TRANSFER to commit financial operations through Solana Agent Kit MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
TRANSFER moves cryptocurrency tokens between wallets, which directly commits financial obligations and moves value. This is irreversible once confirmed on-chain. Even with correct arguments, token transfers represent direct financial transactions with real monetary consequences. On a blockchain, transfers cannot be undone without explicit reverse transactions.
From the tool's definition Tool name 'TRANSFER' combined with description 'Transfer tokens between wallets' in a Solana blockchain context. The sibling tools include TRADE and DEPLOY_TOKEN, confirming this server manages financial assets and transactions on-chain.
Documented attack patterns abuse exactly the kind of access TRANSFER gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Solana Agent Kit MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for TRANSFER:
{
"version": "1",
"default": "deny",
"tools": {
"TRANSFER": {
"deny_if": [
{
"conditions": [],
"on_deny": "Requires human approval."
}
]
}
}
}Any call to TRANSFER is blocked until a human approves it. The rest of the server keeps working.
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Transfer tokens between wallets. It is categorised as a Financial tool in the Solana Agent Kit MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Solana Agent Kit MCP Server MCP server in PolicyLayer and add a rule for 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 Solana Agent Kit MCP Server. Nothing to install.
TRANSFER is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the 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.
Set action: deny in the PolicyLayer policy for 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.
TRANSFER is provided by the Solana Agent Kit MCP Server MCP server (sendaifun/solana-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 11 Solana Agent Kit MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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11 Solana Agent Kit MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.