list_providers

List registered providers. Optionally filter by type (Validator, ModelProvider, TeeProvider).

SERVERTenzro Ledger MCP SOURCEhttps://canton-mcp.tenzro.network/mcp

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/network-tenzro-tenzro/list-providers.md

WHAT IT DOES

What list_providers does on Tenzro Ledger MCP

AI agents call list_providers to retrieve information from Tenzro Ledger MCP 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_providers is rated Low

The tool retrieves and lists data about registered providers with optional filtering parameters. This is a read-only operation that queries existing state without creating, modifying, deleting, or executing anything. Even in a financial/ledger context, listing providers is informational and carries minimal risk.

From the tool's definition Tool name is 'list_providers' and description states it 'List[s] registered providers' with optional filtering. This is a query/retrieval operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_providers safely

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

list_providers Allowed

list_providers 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_providers": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Tenzro Ledger MCP, apply this rule, and every list_providers call is checked against it from then on.

FAQ

Questions about list_providers

What does the list_providers tool do? +

List registered providers. Optionally filter by type (Validator, ModelProvider, TeeProvider). It is categorised as a Read tool in the Tenzro Ledger MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_providers? +

Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for list_providers: 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 Tenzro Ledger MCP. Nothing to install.

What risk level is list_providers? +

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

Can I rate-limit list_providers? +

Yes. Add a rate_limit block to the list_providers 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_providers completely? +

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

list_providers is provided by the Tenzro Ledger MCP server (https://canton-mcp.tenzro.network/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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