get_spg_nft_minting_token

THE RISK

Low Risk

Why get_spg_nft_minting_token needs a policy

This tool retrieves information about a minting fee from an SPG NFT contract. The verb 'get' and the informational nature of querying a fee amount (rather than executing the mint or transferring funds) classify this as a Read operation. No data is modified, deleted, or financial transactions are executed. Severity is low because retrieving fee information poses minimal risk even if misused by an agent.

From the tool's definition Tool name 'get_spg_nft_minting_token' and description 'Get the minting fee required by an SPG NFT contract' indicate a query/retrieval operation with no side effects.

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

POLICY

How to control get_spg_nft_minting_token

PolicyLayer is an MCP gateway — it sits between your AI agents and Story SDK MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_spg_nft_minting_token:

policy.json

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

get_spg_nft_minting_token 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 Story SDK MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

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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_spg_nft_minting_token

What does the get_spg_nft_minting_token tool do? +

Get the minting fee required by an SPG NFT contract. It is categorised as a Read tool in the Story SDK MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_spg_nft_minting_token? +

Register the Story SDK MCP Server MCP server in PolicyLayer and add a rule for get_spg_nft_minting_token: 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 Story SDK MCP Server. Nothing to install.

What risk level is get_spg_nft_minting_token? +

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

Can I rate-limit get_spg_nft_minting_token? +

Yes. Add a rate_limit block to the get_spg_nft_minting_token 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_spg_nft_minting_token completely? +

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

get_spg_nft_minting_token is provided by the Story SDK MCP Server MCP server (piplabs/story-mcp-hub). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Story SDK MCP Server tool call.

Start from Story SDK MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →