urwa_get_frozen_tokens

Read the ERC-7943 frozen-amount for a (token, account) pair.

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/urwa-get-frozen-tokens.md

WHAT IT DOES

What urwa_get_frozen_tokens does on Tenzro Ledger MCP

AI agents call urwa_get_frozen_tokens 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 urwa_get_frozen_tokens is rated Low

This tool queries blockchain state (ERC-7943 frozen token amounts) for a given token and account. It performs no state modification, deletion, code execution, or financial transaction. It is purely informational retrieval, fitting the 'Read' category with low severity since misuse would only expose information already on-chain.

From the tool's definition Tool name and description indicate a retrieval operation: 'Read the ERC-7943 frozen-amount for a (token, account) pair.' The verb 'read' and the absence of any modification, deletion, or execution language confirm this is a query operation with no side…

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs urwa_get_frozen_tokens 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 urwa_get_frozen_tokens, this is the rule to start with:

urwa_get_frozen_tokens Allowed

urwa_get_frozen_tokens 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": {
    "urwa_get_frozen_tokens": {}
  }
}

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 urwa_get_frozen_tokens call is checked against it from then on.

FAQ

Questions about urwa_get_frozen_tokens

What does the urwa_get_frozen_tokens tool do? +

Read the ERC-7943 frozen-amount for a (token, account) pair. 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 urwa_get_frozen_tokens? +

Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for urwa_get_frozen_tokens: 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 urwa_get_frozen_tokens? +

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

Can I rate-limit urwa_get_frozen_tokens? +

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

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

urwa_get_frozen_tokens 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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