What is the key difference between Pay MCP and Knowmint?

Pay MCP belongs to the Finance & Fintech category with local stdio execution, while Knowmint belongs to the Finance & Fintech category with local stdio execution.

How do I install Pay MCP or Knowmint 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 Pay MCP and Knowmint free or paid?

Pay MCP operates under a Free / Open Source model (No auth required). Knowmint operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Pay MCP lists 15 tools with 0 views and 0 GitHub stars. Knowmint lists 8 tools with 0 views and 3 GitHub stars.

Can I use both Pay MCP and Knowmint 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

Pay MCP vs Knowmint

In-depth architectural comparison of the Pay MCP and Knowmint 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

Pay MCP

Finance & Fintech · Local stdio

Quality: 51/100 (Good) | Auth: No auth required

Knowmint

Finance & Fintech · Local stdio

Quality: 55/100 (Good) | Auth: No auth required

Verdict Summary: Choose Pay MCP if you need specialized Finance & Fintech tools running via a local process. Choose Knowmint if your workspace requires Finance & Fintech integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Pay MCP when:

You need dedicated capabilities in the Finance & Fintech domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: pay_send, pay_request, pay_tab_open.

Explore Pay MCP Details

Choose Knowmint when:

You need dedicated capabilities in the Finance & Fintech domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: km_register, km_wallet_login, km_search.

Explore Knowmint Details

Feature & Specification Comparison

Specification	P Pay MCP Finance & Fintech	Knowmint Finance & Fintech
Summary	USDC payments for AI agents on Base — direct, tabs, x402 paywalls, discovery	AI agent knowledge marketplace. Discover, purchase, and retrieve human expertise via x402 on Solana.
Category & Scope	Finance & Fintech	Finance & Fintech
Quality signal

Tools & Capabilities Breakdown

Pay MCP Tools (15)

pay_send

Direct USDC payment ($1 min). Confirmation thresholds: <$10 auto, $10-100 plan, >$100 explicit.

pay_request

HTTP request with x402 auto-payment. Handles 402 detection, direct/tab settlement, price skepticism.

pay_tab_open

Open pre-funded tab ($5 min, $50 recommended). Provider charges per-call.

pay_tab_close

Close tab. Returns distribution breakdown (provider 99%, fee 1%, agent remainder).

pay_tab_charge

Charge against open tab (provider only).

pay_tab_topup

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).

Pay MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "pay-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@pay-skill/mcp"
      ]
    }
  }
}

Knowmint Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "knowmint": {
      "command": "npx",
      "args": [
        "-y",
        "supabase"
      ]
    }
  }
}

Frequently Asked Questions

Pay MCP is categorized under Finance & Fintech and uses a local stdio subprocess. In contrast, Knowmint belongs to Finance & Fintech using local stdio subprocess. Select Pay MCP when you need capabilities focused on finance & fintech and Knowmint when you require tools for finance & fintech.

More alternatives to Pay MCP More alternatives to Knowmint Finance & Fintech category hub Canonical compare URL