What is the key difference between Send21 and Trust Oracle?

Send21 belongs to the Developer Tools category with local stdio execution, while Trust Oracle belongs to the Developer Tools category with local stdio execution.

How do I install Send21 or Trust Oracle 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 Send21 and Trust Oracle free or paid?

Send21 operates under a Free / Open Source model (No auth required). Trust Oracle operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Send21 lists 0 tools with 0 views and 0 GitHub stars. Trust Oracle lists 0 tools with 1 views and 6 GitHub stars.

Can I use both Send21 and Trust Oracle 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

Send21 vs Trust Oracle

In-depth architectural comparison of the Send21 and Trust Oracle 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

Send21

Developer Tools · Local stdio

Quality: 33/100 (Emerging) | Auth: No auth required

Trust Oracle

Developer Tools · Local stdio

Quality: 39/100 (Fair) | Auth: No auth required

Verdict Summary: Choose Send21 if you need specialized Developer Tools tools running via a local process. Choose Trust Oracle if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Send21 when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Send21 Details

Choose Trust Oracle when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Trust Oracle Details

Feature & Specification Comparison

Specification	S Send21 Developer Tools	Trust Oracle Developer Tools
Summary	Non-custodial payment drafts/pay links for BTC, USDC, USDT, EURC. Never holds keys.	Independent A-F trust grade for any MCP server, watched for drift. Free, never for sale.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Send21 Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Trust Oracle Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

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).

Send21 Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "send21": {
      "command": "npx",
      "args": [
        "-y",
        "send21"
      ]
    }
  }
}

Trust Oracle Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "trust-oracle": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote"
      ]
    }
  }
}

Frequently Asked Questions

Send21 is categorized under Developer Tools and uses a local stdio subprocess. In contrast, Trust Oracle belongs to Developer Tools using local stdio subprocess. Select Send21 when you need capabilities focused on developer tools and Trust Oracle when you require tools for developer tools.

More alternatives to Send21 More alternatives to Trust Oracle Developer Tools category hub