list_available_services

List all services that can be connected, grouped by category.

SERVER0nmcp SOURCE0nmcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-0nork-0nmcp/list-available-services.md

WHAT IT DOES

What list_available_services does on 0nmcp

AI agents call list_available_services to retrieve information from 0nmcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_available_services is rated Low

This is a straightforward informational tool that enumerates available services. It has no side effects, performs no modifications, executes no code, and poses minimal risk if called by an AI agent. The operation is purely data retrieval.

From the tool's definition Tool name 'list_available_services' and description 'List all services that can be connected, grouped by category' indicate a read-only query operation that retrieves and displays information without modifying or executing anything.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_available_services safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 0nmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_available_services, this is the rule to start with:

list_available_services Allowed

list_available_services is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_available_services": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect 0nmcp, apply this rule, and every list_available_services call is checked against it from then on.

FAQ

Questions about list_available_services

What does the list_available_services tool do? +

List all services that can be connected, grouped by category. It is categorised as a Read tool in the 0nmcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_available_services? +

Register the 0n MCP server in PolicyLayer and add a rule for list_available_services: 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 0nmcp. Nothing to install.

What risk level is list_available_services? +

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

Can I rate-limit list_available_services? +

Yes. Add a rate_limit block to the list_available_services 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 list_available_services completely? +

Set action: deny in the PolicyLayer policy for list_available_services. 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 list_available_services? +

list_available_services is provided by the 0n MCP server (0nmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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