Merlin Energy MCP

The only MCP server for commercial BESS (Battery Energy Storage) quoting. TrueQuote estimates, lead qualification, competitor battle cards, and proposals inside Claude or any MCP-compatible AI client.

Install

npx @merlinpro/mcp-agent

Claude Desktop Config

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "merlin-energy": {
      "command": "npx",
      "args": ["-y", "@merlinpro/mcp-agent"],
      "env": {
        "OPENAI_API_KEY": "sk-...",
        "SUPABASE_URL": "https://xxxx.supabase.co",
        "SUPABASE_SERVICE_ROLE_KEY": "eyJ..."
      }
    }
  }
}

Restart Claude Desktop — the Merlin Energy tools appear in the ⚙ menu.

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Tools (6)

Tool	Description
generate_truequote	47-variable BESS sizing + financial model (cost, savings, payback, NPV, IRR, CO2)
qualify_lead	Score leads 0-100 across 18 industry verticals: hot / warm / nurture
compare_competitor	Battle cards vs Homer Energy, EnerNOC, manual Excel
generate_proposal	Executive summary, detailed, or one-pager format
get_benchmarks	NREL and EIA benchmarks: cost curves, utility rates, ROI by sector
handle_objection	Data-backed responses to the 5 most common BESS sales objections

Resources (4)

URI	Content
merlin://product/overview	Full platform overview
merlin://product/differentiators	TrueQuote competitive advantages
merlin://data/benchmarks	Industry ROI benchmarks
merlin://sales/objections	Objection-handling playbook

Prompts (2)

Prompt	Modes
sales-call-opener	Cold opener for BESS sales conversations
executive-pitch	investor / EPC / SMB / manufacturer

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Environment Variables

Variable	Required	Description
OPENAI_API_KEY	Yes	OpenAI key for proposal formatting
SUPABASE_URL	Optional	Supabase URL for analytics
SUPABASE_SERVICE_ROLE_KEY	Optional	Supabase service role key
RESEND_API_KEY	Optional	Resend key for email delivery
API_URL	Optional	Merlin Partner API base URL

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Why Merlin

	Merlin TrueQuote	Homer Energy	Manual Excel
Time per quote	Seconds	12-18 hours	90+ hours
Variables used	47	~12	~8
Accuracy vs. installs	95%+	~85%	~70%
Annual cost	$299/mo+	$3K-$15K/yr	Staff time
MCP integration	Yes	No	No

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Partner API

REST API (OpenAPI 3.1.0) for programmatic quoting, leads, and benchmarks.

Plan	Price	Rate Limit
Starter	$299/mo	100 req/hr
Professional	$499/mo	500 req/hr
Enterprise	$999/mo	5,000 req/hr

Docs: merlinpro.energy/api

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Development

git clone https://github.com/merlinpro/merlin-mcp-agent
cd merlin-mcp-agent
npm install
npm run dev    # hot reload via tsx
npm run build  # tsc -> dist/index.js

Local test (stdio):

{
  "mcpServers": {
    "merlin-energy-dev": {
      "command": "node",
      "args": ["/path/to/dist/index.js"],
      "env": { "OPENAI_API_KEY": "sk-..." }
    }
  }
}

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License

MIT © Merlin Energy