Is X402score Sdk free?

Yes, X402score Sdk is free to use.

How do I install X402score Sdk?

X402score Sdk is a local plugin. Install it using npm package: x402score-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

Is X402score Sdk safe to use?

Yes. X402score Sdk passed MCP Marketplace's automated security scan with a score of 9/10 (low risk). Every server on MCP Marketplace is security-scanned before it's listed; see the full security report on this page for the findings and permissions.

What AI apps work with X402score Sdk?

X402score Sdk uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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X402score Sdk MCP Server

by Zagchk

Developer ToolsLow Risk9.0MCP RegistryLocal

Free

Server data from the Official MCP Registry

Check an x402-paid API endpoint's trust score before paying it - live-probed, not self-reported.

About

Check an x402-paid API endpoint's trust score before paying it - live-probed, not self-reported.

Security Report

9.0

Low Risk9.0Low Risk

Valid MCP server (2 strong, 3 medium validity signals). 1 known CVE in dependencies (0 critical, 1 high severity) Package registry verified. Imported from the Official MCP Registry.

9 files analyzed · 2 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

HTTP Network Access

Connects to external APIs or services over the internet.

env_vars

Check that this permission is expected for this type of plugin.

Shell Command Execution

Runs commands on your machine. Be cautious — only use if you trust this plugin.

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-zagchk-x402score-mcp": {
      "args": [
        "-y",
        "x402score-mcp"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

x402Score — SDK & MCP server

Public client-side code for x402Score — free, automated reputation scores for x402-paid API endpoints. The scoring backend itself is closed-source (the exact weights, decay rate, and thresholds are deliberately unpublished, to keep scores harder to game — see /docs). This repo is just the two things a developer or agent needs to consume x402Score programmatically.

Packages

sdk/ — x402score-sdk, published on npm. TypeScript client for the full public API, plus signed-response verification. See sdk/README.md.
mcp/ — x402score-mcp, an MCP server exposing four agent tools (check_endpoint_score, search_leaderboard, get_calibration_report, submit_endpoint), built on the SDK above. Not yet published to any MCP registry — held until the on-chain payment signal's calibration gate closes (~2026-10-19, after three weekly calibration cycles). See mcp/README.md.

Status

	Status
SDK (npm)	Published — `npm install x402score-sdk`
MCP server	Built, tested, not yet published — see `mcp/README.md` for why

Why trust the numbers

Every API response can be verified two ways: a per-response signature proves a given response really came from x402Score and wasn't altered in transit, and a daily blockchain-anchored checkpoint proves the underlying historical data wasn't quietly altered after the fact either. Full explanation at /transparency.

Reviews

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4.7

Local

MCP Marketplace

Free

by mcp-marketplace · Developer Tools

Search and install MCP servers from inside your AI client.