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MCP

Claude Desktop integration

In brief

The strongest case: remote MCP server at mcp.askmarcel.app with OAuth or API key. Claude calls diagnose and cites sources.

Prerequisites

  • Claude account (Pro recommended for all tools)
  • AskMarcel Developer API key (ak_live_) or OAuth flow
  • Claude Desktop installed (macOS / Windows)

Recommended: OAuth

  1. 1

    Open MCP settings

    Claude Desktop → Settings → Developer → Edit Config (or Connectors depending on version).

  2. 2

    Add remote connector

    URL: https://mcp.askmarcel.app. Claude auto-detects OAuth via /.well-known/oauth-protected-resource.

  3. 3

    Authorize AskMarcel

    Follow the OAuth consent screen. Your AskMarcel account is linked — no key to paste.

Alternative: API key

If OAuth is unavailable, configure manually with your ak_live_ key.

claude_desktop_config.json
{
  "mcpServers": {
    "askmarcel": {
      "url": "https://mcp.askmarcel.app",
      "headers": {
        "Authorization": "Bearer ak_live_..."
      }
    }
  }
}

Use the tools

Ask Claude: "Diagnose error E7 on a Mitsubishi Ecodan". The agent calls diagnose and shows steps + manufacturer source.

Verify it works

In Claude, ask "List available AskMarcel tools". You should see 10 GA MCP tools, or 15 if Diagnostic Guide Beta session tools are enabled (including diagnose_v2, resolve_model, get_model_coverage, and the five session tools).

Manual test (curl)
curl -s -X POST https://mcp.askmarcel.app \
  -H "Authorization: Bearer ak_live_..." \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'

Known limitations

  • OAuth requires a linked AskMarcel account
  • Developer tier is limited to 50 req/month and not allowed in production

Video coming soon

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