Create a custom API endpoint for a Frappe app
Risk signalsAccepts freeform code/query input (code)
Part of the Frappe Dev MCP Server server.
Free to start. No card required.
AI agents use frappe_create_api_endpoint to create or modify resources in Frappe Dev MCP 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 frappe_create_api_endpoint 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 Frappe Dev MCP Server.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"frappe_create_api_endpoint": {
"limits": [
{
"counter": "frappe_create_api_endpoint_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Frappe Dev MCP Server policy for all 29 tools.
These attack patterns abuse exactly the kind of access frappe_create_api_endpoint 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.
Create a custom API endpoint for a Frappe app. It is categorised as a Write tool in the Frappe Dev MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Frappe Dev MCP Server MCP server in PolicyLayer and add a rule for frappe_create_api_endpoint: 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 Frappe Dev MCP Server. Nothing to install.
frappe_create_api_endpoint 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 frappe_create_api_endpoint 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 frappe_create_api_endpoint. 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.
frappe_create_api_endpoint is provided by the Frappe Dev MCP Server MCP server (frappe-dev-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 29 Frappe Dev MCP 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.