get-nft-collection

THE RISK

Low Risk

Why get-nft-collection needs a policy

This tool retrieves NFT ownership information for a given address on the XRP Ledger. It performs a read-only query with no side effects, no code execution, no data modification, and no financial impact. The blast radius of misuse is minimal—an attacker could only enumerate NFT holdings, which may be considered sensitive but involves no destructive or financial harm.

From the tool's definition Tool name 'get-nft-collection' and description 'Get all NFTs owned by an address' indicate a query operation that retrieves data without modification or execution of transactions.

Documented attack patterns abuse exactly the kind of access get-nft-collection gives an agent:

POLICY

How to control get-nft-collection

PolicyLayer is an MCP gateway — it sits between your AI agents and Xrpl mcp, and nothing reaches the server without passing your rules. This is the rule we recommend for get-nft-collection:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get-nft-collection": {}
  }
}

get-nft-collection is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

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

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get-nft-collection

What does the get-nft-collection tool do? +

Get all NFTs owned by an address. It is categorised as a Read tool in the Xrpl mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get-nft-collection? +

Register the Xrpl MCP server in PolicyLayer and add a rule for get-nft-collection: 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 Xrpl mcp. Nothing to install.

What risk level is get-nft-collection? +

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

Can I rate-limit get-nft-collection? +

Yes. Add a rate_limit block to the get-nft-collection 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 get-nft-collection completely? +

Set action: deny in the PolicyLayer policy for get-nft-collection. 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 get-nft-collection? +

get-nft-collection is provided by the Xrpl MCP server (romthpt/mcp-xrpl). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Xrpl mcp tool call.

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

CHECK YOUR STACK →