What is the key difference between Payfetch and SCRIPTMASTERLABS — x402 Gateway?

Payfetch belongs to the Finance & Fintech category with local stdio execution, while SCRIPTMASTERLABS — x402 Gateway belongs to the Finance & Fintech category with cloud HTTP/SSE execution.

How do I install Payfetch or SCRIPTMASTERLABS — x402 Gateway 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 Payfetch and SCRIPTMASTERLABS — x402 Gateway free or paid?

Payfetch operates under a Free / Open Source model (other). SCRIPTMASTERLABS — x402 Gateway operates under a Freemium model (No auth required).

Which MCP server has more tools and community activity?

Payfetch lists 6 tools with 2 views and 0 GitHub stars. SCRIPTMASTERLABS — x402 Gateway lists 99 tools with 1 views and 0 GitHub stars.

Can I use both Payfetch and SCRIPTMASTERLABS — x402 Gateway 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

Payfetch vs SCRIPTMASTERLABS — x402 Gateway

In-depth architectural comparison of the Payfetch and SCRIPTMASTERLABS — x402 Gateway 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

Payfetch

Finance & Fintech · Local stdio

Quality: 53/100 (Good) | Auth: other

SCRIPTMASTERLABS — x402 Gateway

Finance & Fintech · Remote HTTP/SSE

Quality: 76/100 (Great) | Auth: No auth required

Verdict Summary: Choose Payfetch if you need specialized Finance & Fintech tools running via a local process. Choose SCRIPTMASTERLABS — x402 Gateway if your workspace requires Finance & Fintech integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Payfetch when:

You need dedicated capabilities in the Finance & Fintech domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (Free / Open Source).
You have access to required keys: PAYFETCH_PRIVATE_KEY, PAYFETCH_KEY_FILE, PAYFETCH_CDP_API_KEY_ID, PAYFETCH_CDP_API_KEY_SECRET, PAYFETCH_CDP_WALLET_SECRET, PAYFETCH_CDP_ACCOUNT_NAME, PAYFETCH_TEST_MODE.
Primary tools included: x402 payments using USDC on Base, Per-call, daily, per-host, and optional lifetime caps, Host allow and deny lists.

Explore Payfetch Details

Choose SCRIPTMASTERLABS — x402 Gateway when:

You need dedicated capabilities in the Finance & Fintech domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Freemium).
Primary tools included: .

Feature & Specification Comparison

Specification	Payfetch forum-labs Finance & Fintech	S SCRIPTMASTERLABS — x402 Gateway VerifiedFinance & Fintech
Summary	Non-custodial paying-fetch client for agents that pay APIs over HTTP 402 (x402, USDC on Base). The operator sets hard per-call/per-day/per-host spend caps, an approval threshold, and allow/deny lists, with an append-only receipt for every attempt; the agent can't raise its own limits. npx -y -p @forum-labs/payfetch payfetch-mcp	Remote MCP gateway for SCRIPTMASTERLABS x402-paid tools and agent-native API access on Base, with free capability discovery and pay-per-use execution.

Tools & Capabilities Breakdown

Payfetch Tools (6)

x402 payments using USDC on Base

Per-call, daily, per-host, and optional lifetime caps

Host allow and deny lists

Human approval threshold

Dry-run and payment quote workflows

Append-only local receipts

SCRIPTMASTERLABS — x402 Gateway Tools (99)

sml_discover

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).

Payfetch Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "forum-labs-payfetch": {
      "command": "npx",
      "args": [
        "-y",
        "@forum-labs/payfetch"
      ],
      "env": {
        "PAYFETCH_PRIVATE_KEY": "YOUR_PAYFETCH_PRIVATE_KEY_HERE",
        "PAYFETCH_KEY_FILE": "YOUR_PAYFETCH_KEY_FILE_HERE",
        "PAYFETCH_CDP_API_KEY_ID": "YOUR_PAYFETCH_CDP_API_KEY_ID_HERE",
        "PAYFETCH_CDP_API_KEY_SECRET": "YOUR_PAYFETCH_CDP_API_KEY_SECRET_HERE",
        "PAYFETCH_CDP_WALLET_SECRET": "YOUR_PAYFETCH_CDP_WALLET_SECRET_HERE",
        "PAYFETCH_CDP_ACCOUNT_NAME": "YOUR_PAYFETCH_CDP_ACCOUNT_NAME_HERE",
        "PAYFETCH_TEST_MODE": "YOUR_PAYFETCH_TEST_MODE_HERE"
      }
    }
  }
}

SCRIPTMASTERLABS — x402 Gateway Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "scriptmasterlabs-x402-gateway": {
      "url": "https://mcp-x402.onrender.com/mcp"
    }
  }
}

Frequently Asked Questions

Payfetch is categorized under Finance & Fintech and uses a local stdio subprocess. In contrast, SCRIPTMASTERLABS — x402 Gateway belongs to Finance & Fintech using remote streaming HTTP/SSE transport. Select Payfetch when you need capabilities focused on finance & fintech and SCRIPTMASTERLABS — x402 Gateway when you require tools for finance & fintech.

More alternatives to Payfetch More alternatives to SCRIPTMASTERLABS — x402 Gateway Finance & Fintech category hub