Login using API_KEY
Part of the My Smithery App server.
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AI agents use login_with_api_key to create or modify resources in My Smithery App. 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 login_with_api_key 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 My Smithery App.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"login_with_api_key": {
"limits": [
{
"counter": "login_with_api_key_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full My Smithery App policy for all 9 tools.
These attack patterns abuse exactly the kind of access login_with_api_key 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.
Login using API_KEY. It is categorised as a Write tool in the My Smithery App MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the My Smithery App MCP server in PolicyLayer and add a rule for login_with_api_key: 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 My Smithery App. Nothing to install.
login_with_api_key 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 login_with_api_key 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 login_with_api_key. 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.
login_with_api_key is provided by the My Smithery App MCP server (paracetamol951/my-smithery-app). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 9 My Smithery App 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.