Fund an Aptos account using the testnet faucet. This is only available on testnet and is used to add APT tokens to an account for testing purposes. Returns the funding transaction details.
Part of the Aptos Blockchain Server server.
Free to start. No card required.
AI agents use fund_account to create or modify resources in Aptos Blockchain Server. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call fund_account repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Aptos Blockchain Server.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"fund_account": {
"limits": [
{
"counter": "fund_account_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Aptos Blockchain Server policy for all 16 tools.
These attack patterns abuse exactly the kind of access fund_account gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Fund an Aptos account using the testnet faucet. This is only available on testnet and is used to add APT tokens to an account for testing purposes. Returns the funding transaction details.. It is categorised as a Write tool in the Aptos Blockchain Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Aptos Blockchain Server MCP server in PolicyLayer and add a rule for fund_account: 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.
fund_account is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the fund_account 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 fund_account. 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.
fund_account 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.
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