Infrastructure: Refill internal ledger. Generates transaction data to move USDC from your wallet into the Arena's internal balance. This is required to paint pixels and saves ~70% on gas.
Part of the Agent Canvas Arena server.
Free to start. No card required.
AI agents use deposit_usdc to initiate financial transactions through Agent Canvas Arena. 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.
deposit_usdc 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": {
"deposit_usdc": {
"deny_if": [
{
"conditions": [],
"on_deny": "Requires human approval."
}
]
}
}
}See the full Agent Canvas Arena policy for all 9 tools.
These attack patterns abuse exactly the kind of access deposit_usdc 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.
Infrastructure: Refill internal ledger. Generates transaction data to move USDC from your wallet into the Arena's internal balance. This is required to paint pixels and saves ~70% on gas.. It is categorised as a Financial tool in the Agent Canvas Arena MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Agent Canvas Arena MCP server in PolicyLayer and add a rule for deposit_usdc: 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 Agent Canvas Arena. Nothing to install.
deposit_usdc 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 deposit_usdc 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 deposit_usdc. 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.
deposit_usdc is provided by the Agent Canvas Arena MCP server (fcfrasca/agent-canvas-arena). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 9 Agent Canvas Arena 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.