FirstSales MCP vs B2B Lead Enrichment

In-depth architectural comparison of the FirstSales MCP and B2B Lead Enrichment 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.

Which MCP Server Should You Choose?

F

Choose FirstSales MCP when:

• You need dedicated capabilities in the Customer Data Platforms domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: OAuth 2.0 (Paid Service).

Explore FirstSales MCP Details

Choose B2B Lead Enrichment when:

• You need dedicated capabilities in the Customer Data Platforms domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (Freemium).
• Primary tools included: Structured B2B company enrichment by domain, Confidence-scored results; only charged above 0.6 confidence, Free tier: 100 enrichments/month.

Explore B2B Lead Enrichment Details

Feature & Specification Comparison

Specification	F FirstSales MCP Customer Data Platforms	B2B Lead Enrichment Customer Data Platforms
Summary	Official hosted FirstSales CRM MCP. Retrieve contacts, deals, lists and workflow data, and create contacts in an approved workspace. Connect to https://api.app.firstsales.io/mcp using Streamable HTTP and OAuth with PKCE. Requires an eligible paid FirstSales account.	Remote MCP server to enrich company profiles with structured B2B data and confidence scores.
Category & Scope	Customer Data Platforms

Tools & Capabilities Breakdown

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).

{
  "mcpServers": {
    "firstsales-mcp": {
      "url": "https://api.app.firstsales.io/mcp"
    }
  }
}

{
  "mcpServers": {
    "b2b-lead-enrichment": {
      "command": "npx",
      "args": [
        "-y",
        "@anthropic-ai/mcp-server-lead-enrichment"
      ]
    }
  }
}

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