Transfer SPL tokens from the configured wallet to a destination. Requires PRIVATE_KEY.
AI agents use transfer_token to commit financial operations through Solana MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Token transfers on blockchain networks are inherently financial operations that move real monetary value. Even though the tool does not involve fiat currency, SPL tokens represent assets with market value on the Solana blockchain. The tool's requirement for PRIVATE_KEY and its ability to transfer tokens without explicit per-transaction approval makes it a critical-severity financial tool.
From the tool's definition "Transfer SPL tokens from the configured wallet to a destination. Requires PRIVATE_KEY." This tool moves cryptocurrency assets (tokens) from one wallet to another, which constitutes a financial transaction and commitment of value.
Attacks that exploit this kind of access
Transfer SPL tokens from the configured wallet to a destination. Requires PRIVATE_KEY. It is categorised as a Financial tool in the Solana MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Solana MCP Server MCP server in PolicyLayer and add a rule for transfer_token: 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 MCP Server. Nothing to install.
transfer_token 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_token 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_token. 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_token is provided by the Solana MCP Server MCP server (visioneth/solana-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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