Transfer a specific coin type to another Aptos account. This is used for sending custom coins or tokens from your account to another address. Returns the transaction hash upon successful transfer.
Part of the Aptos Blockchain Server server.
Free to start. No card required.
AI agents use transfer_coin to initiate financial transactions through Aptos Blockchain Server. Financial operations involve real money and are irreversible once processed. PolicyLayer blocks financial tools by default, requiring explicit human approval with transaction-level limits to prevent unauthorised spending.
transfer_coin moves real money. Without a policy, an autonomous agent could initiate transactions that drain accounts or exceed budgets. PolicyLayer blocks financial tools by default, requiring human-in-the-loop approval with configurable spending limits per transaction and per time window.
Financial tools involve real money. Block by default and require explicit human approval before enabling.
{
"version": "1",
"default": "deny",
"tools": {
"transfer_coin": {
"deny_if": [
{
"conditions": [],
"on_deny": "Requires human approval."
}
]
}
}
}See the full Aptos Blockchain Server policy for all 16 tools.
These attack patterns abuse exactly the kind of access transfer_coin gives an agent. Each links to the full case and the policy that stops it:
Other financial tools across the catalogue. The same approach applies to each: deny by default, or require human approval.
Transfer a specific coin type to another Aptos account. This is used for sending custom coins or tokens from your account to another address. Returns the transaction hash upon successful transfer.. It is categorised as a Financial tool in the Aptos Blockchain Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Aptos Blockchain Server MCP server in PolicyLayer and add a rule for transfer_coin: 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 Aptos Blockchain Server. Nothing to install.
transfer_coin 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_coin 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_coin. 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_coin is provided by the Aptos Blockchain Server MCP server (cuongpo/aptos-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 16 Aptos Blockchain Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.