What is the key difference between CatchDoms — Expired Domains API and OnchainAI?

CatchDoms — Expired Domains API belongs to the Monitoring category with cloud HTTP/SSE execution, while OnchainAI belongs to the Monitoring category with cloud HTTP/SSE execution.

How do I install CatchDoms — Expired Domains API or OnchainAI 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 CatchDoms — Expired Domains API and OnchainAI free or paid?

CatchDoms — Expired Domains API operates under a Freemium model (API Key required). OnchainAI operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

CatchDoms — Expired Domains API lists 4 tools with 2 views and 4 GitHub stars. OnchainAI lists 11 tools with 1 views and 1 GitHub stars.

Can I use both CatchDoms — Expired Domains API and OnchainAI 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

CatchDoms — Expired Domains API vs OnchainAI

In-depth architectural comparison of the CatchDoms — Expired Domains API and OnchainAI 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

CatchDoms — Expired Domains API

Monitoring · Remote HTTP/SSE

Quality: 51/100 (Good) | Auth: API Key required

OnchainAI

Monitoring · Remote HTTP/SSE

Quality: 56/100 (Good) | Auth: No auth required

Verdict Summary: Choose CatchDoms — Expired Domains API if you need specialized Monitoring tools running via a hosted cloud SSE transport. Choose OnchainAI if your workspace requires Monitoring integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose CatchDoms — Expired Domains API when:

You need dedicated capabilities in the Monitoring domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: API Key required (Freemium).
Primary tools included: search_domains, get_domain, list_filters.

Explore CatchDoms — Expired Domains API Details

Choose OnchainAI when:

You need dedicated capabilities in the Monitoring domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Primary tools included: search_tools, get_tool_detail, get_install_guide.

Explore OnchainAI Details

Feature & Specification Comparison

Specification	CatchDoms — Expired Domains API Monitoring	OnchainAI Monitoring
Summary	Search 40K+ expired domains from 12 auction platforms with SEO metrics and scores.	Crypto tool directory MCP for AI agents — discover MCP/CLI/SDK/API/x402 tools with trust metadata.
Category & Scope	Monitoring	Monitoring

Tools & Capabilities Breakdown

CatchDoms — Expired Domains API Tools (4)

search_domains

Search for domains with filters. Returns up to 100 results sorted by quality.

get_domain

Get full details for a specific domain.

list_filters

Get available filter options with counts — sources, TLDs, and languages.

get_stats

Get platform statistics — total domains, new today, by source, SEO coverage.

OnchainAI Tools (11)

search_tools

Search by capability ("bridge USDC to Base"), filter by category/chain, sort by relevance/trust/stars/recent

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).

CatchDoms — Expired Domains API Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "catchdoms-expired-domains-api": {
      "url": "https://catchdoms.com/mcp/catchdoms/free"
    }
  }
}

OnchainAI Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "onchainai": {
      "url": "https://www.onchain-ai.xyz/mcp"
    }
  }
}

Frequently Asked Questions

CatchDoms — Expired Domains API is categorized under Monitoring and uses a remote streaming HTTP/SSE transport. In contrast, OnchainAI belongs to Monitoring using remote streaming HTTP/SSE transport. Select CatchDoms — Expired Domains API when you need capabilities focused on monitoring and OnchainAI when you require tools for monitoring.

More alternatives to CatchDoms — Expired Domains API More alternatives to OnchainAI Monitoring category hub