call_nodit_aptos_indexer_api

THE RISK

Low Risk

Why call_nodit_aptos_indexer_api needs a policy

This tool queries blockchain indexer APIs to retrieve structured data from the Aptos network. The primary function is data retrieval with no mention of creating, modifying, or deleting data.

From the tool's definition Tool name 'call_nodit_aptos_indexer_api' and description 'Calls a Nodit Aptos Indexer API. Returns the API response' indicates querying blockchain data.

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

POLICY

How to control call_nodit_aptos_indexer_api

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

policy.json

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

call_nodit_aptos_indexer_api 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 Nodit 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

Related tools and policies

More Nodit MCP Server tools

Execute call_nodit_api This function calls a specific Nodit Blockchain Context API using its operationId. Before Read get_nodit_api_spec Gets the fully resolved spec details for a Nodit Blockchain Context API operationId. Retur Read get_nodit_aptos_indexer_api_spec Returns the GraphQL specification for a specific query root in the Nodit Aptos Indexer API Read list_nodit_api_categories Lists available Nodit API categories from Nodit Blockchain Context. To use the Nodit API t Read list_nodit_aptos_indexer_api_query_root Lists all query roots available in the Nodit Aptos Indexer GraphQL API. Read list_nodit_data_apis Lists available Nodit Data API operations. Read list_nodit_node_apis Lists available Nodit API operations.

All 8 Nodit MCP Server tools →

Read tools on other servers

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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 call_nodit_aptos_indexer_api

What does the call_nodit_aptos_indexer_api tool do? +

Calls a Nodit Aptos Indexer API. Returns the API response. Before making the call, it. It is categorised as a Read tool in the Nodit MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on call_nodit_aptos_indexer_api? +

Register the Nodit MCP Server MCP server in PolicyLayer and add a rule for call_nodit_aptos_indexer_api: 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 Nodit MCP Server. Nothing to install.

What risk level is call_nodit_aptos_indexer_api? +

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

Can I rate-limit call_nodit_aptos_indexer_api? +

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

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

call_nodit_aptos_indexer_api is provided by the Nodit MCP Server MCP server (noditlabs/nodit-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Nodit MCP Server tool call.

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

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