What is the key difference between X402station and X402 Discovery MCP?

X402station belongs to the Aggregators category with local stdio execution, while X402 Discovery MCP belongs to the Aggregators category with local stdio execution.

How do I install X402station or X402 Discovery MCP in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are X402station and X402 Discovery MCP free or paid?

X402station operates under a Freemium model (other). X402 Discovery MCP operates under a Freemium model (API Key required).

Which MCP server has more tools and community activity?

X402station lists 10 tools with 1 views and 3 GitHub stars. X402 Discovery MCP lists 9 tools with 2 views and 4 GitHub stars.

Can I use both X402station and X402 Discovery MCP together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

X402station vs X402 Discovery MCP

In-depth architectural comparison of the X402station and X402 Discovery MCP MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

X402station

Aggregators · Local stdio

Quality: 56/100 (Good) | Auth: other

X402 Discovery MCP

Aggregators · Local stdio

Quality: 53/100 (Good) | Auth: API Key required

Verdict Summary: Choose X402station if you need specialized Aggregators tools running via a local process. Choose X402 Discovery MCP if your workspace requires Aggregators integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose X402station when:

You need dedicated capabilities in the Aggregators domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (Freemium).
You have access to required keys: AGENT_PRIVATE_KEY, X402STATION_BASE_URL.
Primary tools included: preflight, forensics, catalog_decoys.

Explore X402station Details

Choose X402 Discovery MCP when:

You need dedicated capabilities in the Aggregators domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Freemium).
You have access to required keys: X402_PAYMENT_HEADER, X402_WALLET_ADDRESS, X402_API_URL.
Primary tools included: x402_discover, x402_health, x402_register.

Feature & Specification Comparison

Specification	X402station sF1nX Aggregators	X402 Discovery MCP rplryan Aggregators
Summary	Preflight by x402station.io — infrastructure for x402 agentic commerce. Six capability directions (Discover/Evaluate/Pay/Monitor/Recover/Analyze). Agents call it before every PAYMENT-SIGNATURE to detect decoys, zombie endpoints, dead services, and price traps. Tools: preflight ($0.001), forensics ($0.001), catalogdecoys ($0.005), alternatives ($0.005), whatsnew ($0.001), buycredits ($0.50 = 1000 prepaid), watchsubscribe ($0.01) + free creditsstatus/watchstatus/watchunsubscribe. Plus free anonymous preflight-trial for self-test. Probes 50k endpoints on agentic.market every 10 min. Open dataset: huggingface.co/datasets/x402station/preflight-dataset-v01. npx -y x402station-mcp.	Runtime discovery layer for x402-payable APIs. Agents discover and route to pay-per-call x402 endpoints by capability, get quality-ranked results with trust scores (0-100), and pay per query via x402. Includes MCP server, Python SDK, and CLI (npm install -g x402scout).

Tools & Capabilities Breakdown

X402station Tools (10)

preflight

Preflight x402 scam check: endpoint risk before you pay — decoy / zombie / price-trap / never-paid? Trust verdict in ~200ms before PAYMENT-SIGNATURE.

forensics

Forensic x402 scam/risk report for a suspicious endpoint: probe history, signatures, decoy / price-trap patterns.

catalog_decoys

Searchable catalog of x402 endpoint risk signals; scam-like decoys, zombies, and price-traps flagged.

buy_credits

Prepaid credit pack for high-frequency x402 scam checks, preflight, and verified calls. Returns { creditId, balance, expiresAt }; use X-Credit-Id on subsequent preflight calls.

credits_status

Free, no payment required. Returns { creditId, balance, initialBalance, used, paidAmount, createdAt, expiresAt, expired, paymentTx, paymentNetwork }. UUID-only access — anyone holding the creditId can read state, same as decrement. 404 covers both 'malformed UUID' and 'no such credit' (same body so an attacker scraping random UUIDs can't tell them apart).

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

X402station Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "sf1nx-x402station": {
      "command": "npx",
      "args": [
        "-y",
        "in"
      ],
      "env": {
        "AGENT_PRIVATE_KEY": "YOUR_AGENT_PRIVATE_KEY_HERE",
        "X402STATION_BASE_URL": "YOUR_X402STATION_BASE_URL_HERE"
      }
    }
  }
}

X402 Discovery MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "rplryan-x402-discovery-mcp": {
      "command": "npx",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/rplryan/x402-discovery-mcp:latest"
      ],
      "env": {
        "X402_PAYMENT_HEADER": "YOUR_X402_PAYMENT_HEADER_HERE",
        "X402_WALLET_ADDRESS": "YOUR_X402_WALLET_ADDRESS_HERE",
        "X402_API_URL": "YOUR_X402_API_URL_HERE"
      }
    }
  }
}

Frequently Asked Questions

X402station is categorized under Aggregators and uses a local stdio subprocess. In contrast, X402 Discovery MCP belongs to Aggregators using local stdio subprocess. Select X402station when you need capabilities focused on aggregators and X402 Discovery MCP when you require tools for aggregators.

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