mod_inv

SERVERScorpTech x402 API SOURCEhttps://scorptech.it.com/api/x402/mcp

Low RISK CLASS

Category Read

Parameters 22 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-it-scorptech-x402/mod-inv.md

WHAT IT DOES

What mod_inv does on ScorpTech x402 API

AI agents call mod_inv to retrieve information from ScorpTech x402 API without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`a`	string	Yes
`mod`	string	Yes

Parameters from the server's own tool schema.

RISK

Why mod_inv is rated Low

Even though mod_inv only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs mod_inv safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ScorpTech x402 API, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mod_inv, this is the rule to start with:

mod_inv Allowed

mod_inv 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": {
    "mod_inv": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect ScorpTech x402 API, apply this rule, and every mod_inv call is checked against it from then on.

FAQ

Questions about mod_inv

What does the mod_inv tool do? +

The modular inverse of a modulo m, as a residue from 0 up to m-1. The modulus must be at least 1. A value that is not coprime to m is rejected. Price: $0.001 USDC per successful call (x402, Solana). Same tool over HTTPS: POST https://scorptech.it.com/api/x402/v1/mod-inv. It is categorised as a Read tool in the ScorpTech x402 API MCP Server, which means it retrieves data without modifying state.

What parameters does mod_inv accept? +

mod_inv accepts 2 parameters: a, mod. Required: a, mod. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on mod_inv? +

Register the ScorpTech x402 API MCP server in PolicyLayer and add a rule for mod_inv: 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 ScorpTech x402 API. Nothing to install.

What risk level is mod_inv? +

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

Can I rate-limit mod_inv? +

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

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

mod_inv is provided by the ScorpTech x402 API MCP server (https://scorptech.it.com/api/x402/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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