Primitiv vs Ainumbers MCP Apps

In-depth architectural comparison of the Primitiv and Ainumbers MCP Apps 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?

Choose Primitiv 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: get_design_context, get_token, get_component.

Explore Primitiv Details

Choose Ainumbers MCP Apps 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: Streamable HTTP MCP endpoint, Read-only deterministic tool execution, Interactive MCP Apps widgets.

Explore Ainumbers MCP Apps Details

Feature & Specification Comparison

Specification	Primitiv AI-by-design Finance & Fintech	Ainumbers MCP Apps PostOakLabs Finance & Fintech
Summary	Design contract layer for your codebase. Scans Figma, code, Storybook, and token files, reconciles conflicts, and serves a single machine-readable source of truth over MCP so every agent gets the same authoritative design rules before it builds. Local-first — your code never leaves your machine.	420+ deterministic fintech tools — agentic payments (AP2, x402, Visa TAP, A2A), AML/KYC risk rating, BaaS provider comparison, and MCP dev tooling (tool-definition linter, server.json validator, OAuth auditor, readiness scorecard) — with 15 flagship tools rendered as interactive MCP Apps widgets. Remote streamable HTTP, read-only, no auth, zero PII.

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": {
    "ai-by-design-primitiv": {
      "command": "npx",
      "args": [
        "-y",
        "@ai-by-design/primitiv"
      ]
    }
  }
}

{
  "mcpServers": {
    "postoaklabs-ainumbers-mcp-apps": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/inspector"
      ]
    }
  }
}

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