OpenAaaS

THE RISK

Low Risk

Why OpenAaaS needs a policy

The description only explains that this tool supports multi-server configuration and allows specifying a target server alias via a 'server' parameter. It does not describe any concrete action (read, write, execute, delete, financial).

From the tool's definition The description is largely uninformative: '支持多服务器配置。所有 action 可通过 server 参数指定目标服务器别名，不传则使用 default_server。' — it only describes server routing behavior, not what the tool actually does.

Documented attack patterns abuse exactly the kind of access OpenAaaS gives an agent:

POLICY

How to control OpenAaaS

PolicyLayer is an MCP gateway — it sits between your AI agents and Openaaas Mcp Adapter, and nothing reaches the server without passing your rules. This is the rule we recommend for OpenAaaS:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "OpenAaaS": {
      "limits": [
        {
          "counter": "openaaas_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

OpenAaaS gets a rate cap, and everything else on the server is denied unless you say otherwise.

Create a free account and register Openaaas Mcp Adapter — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

SET A RULE FOR THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Openaaas Mcp Adapter tools

Destructive cancel_task 取消执行中的任务 Destructive remove_server 删除指定服务器的配置（不能删除默认服务器） Execute submit_task 提交任务到远程 Agent（支持文件上传） Write todo Manage a todo list. Actions: list, add (text), toggle (id), clear Write register 注册客户端账号，获取 api_key（仅需一次） Write set_default_server 切换默认服务器 Write set_server_url 设置服务器地址并保存到配置文件 Write update_profile 修改当前客户端用户名

All 16 Openaaas Mcp Adapter tools →

Other tools on other servers

Android Forensics ADB MCP Server generate_app_analysis_report Ethereum Tools add Math MCP Server complex_analysis_suite Crypto_MCP aes_encrypt

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Tool risk categories → How PolicyLayer classifies MCP tools by what they can do.
MCP tool → What an MCP tool is and how clients discover and call it.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about OpenAaaS

What does the OpenAaaS tool do? +

支持多服务器配置。所有 action 可通过 server 参数指定目标服务器别名，不传则使用 default_server。\n\n. It is categorised as a Other tool in the Openaaas Mcp Adapter MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on OpenAaaS? +

Register the Openaaas Mcp Adapter MCP server in PolicyLayer and add a rule for OpenAaaS: 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 Openaaas Mcp Adapter. Nothing to install.

What risk level is OpenAaaS? +

OpenAaaS is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit OpenAaaS? +

Yes. Add a rate_limit block to the OpenAaaS 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.

How do I block OpenAaaS completely? +

Set action: deny in the PolicyLayer policy for OpenAaaS. 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.

What MCP server provides OpenAaaS? +

OpenAaaS is provided by the Openaaas Mcp Adapter MCP server (wolido/openaaas). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Openaaas Mcp Adapter tool call.

Start from Openaaas Mcp Adapter, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →