What is the key difference between Person Enrichment API and ARBuilder?

Person Enrichment API belongs to the Communication category with cloud HTTP/SSE execution, while ARBuilder belongs to the Communication category with local stdio execution.

How do I install Person Enrichment API or ARBuilder 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 Person Enrichment API and ARBuilder free or paid?

Person Enrichment API operates under a Free / Open Source model (No auth required). ARBuilder operates under a Freemium model (API Key required).

Which MCP server has more tools and community activity?

Person Enrichment API lists 2 tools with 0 views and 0 GitHub stars. ARBuilder lists 19 tools with 2 views and 24 GitHub stars.

Can I use both Person Enrichment API and ARBuilder 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

Person Enrichment API vs ARBuilder

In-depth architectural comparison of the Person Enrichment API and ARBuilder 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

Person Enrichment API

Communication · Remote HTTP/SSE

Quality: 49/100 (Fair) | Auth: No auth required

ARBuilder

Communication · Local stdio

Quality: 56/100 (Good) | Auth: API Key required

Verdict Summary: Choose Person Enrichment API if you need specialized Communication tools running via a hosted cloud SSE transport. Choose ARBuilder if your workspace requires Communication integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Person Enrichment API when:

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

Explore Person Enrichment API Details

Choose ARBuilder when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Freemium).
You have access to required keys: ARBUILDER_API_KEY.
Primary tools included: get_stylus_context, generate_stylus_code, ask_stylus.

Explore ARBuilder Details

Feature & Specification Comparison

Specification	Person Enrichment API Communication	ARBuilder Quantum3-Labs Communication
Summary	Person lookup from email: name, title, company, social profiles. x402.	AI-powered code generator for the Arbitrum ecosystem. 19 MCP tools for Stylus smart contracts, SDK bridging, full-stack dApps, and Orbit chain deployment, backed by RAG-based retrieval over Arbitrum documentation.
Category & Scope	Communication

Tools & Capabilities Breakdown

Person Enrichment API Tools (2)

person_enrich_from_email

Enrich a person profile from their email address

Email address to enrich (e.g. john@company.com)

ARBuilder Tools (19)

get_stylus_context

RAG retrieval for docs and code examples

generate_stylus_code

Generate Stylus contracts from prompts

ask_stylus

Q&A, debugging, concept explanations

generate_tests

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).

Person Enrichment API Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "person-enrichment-api": {
      "url": "https://person-enrichment.api.klymax402.com/mcp"
    }
  }
}

ARBuilder Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "quantum3-labs-arbuilder": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote"
      ],
      "env": {
        "ARBUILDER_API_KEY": "YOUR_ARBUILDER_API_KEY_HERE"
      }
    }
  }
}

Frequently Asked Questions

Person Enrichment API is categorized under Communication and uses a remote streaming HTTP/SSE transport. In contrast, ARBuilder belongs to Communication using local stdio subprocess. Select Person Enrichment API when you need capabilities focused on communication and ARBuilder when you require tools for communication.

More alternatives to Person Enrichment API More alternatives to ARBuilder Communication category hub