MCP Server

Claude Desktop

Query your AI economics from any MCP-compatible client.

{
  "mcpServers": {
    "finault": {
      "command": "npx",
      "args": ["-y", "@finault/mcp-server"],
      "env": {
        "FINAULT_API_KEY": "fnlt_..."
      }
    }
  }
}

Available Tools

get_margins

Per-customer margin breakdown with revenue attribution

get_spend

AI spend aggregated by provider, model, or time period

list_customers

All customers with current margin status and rating

get_close_pack

Monthly sealed audit pack with chain verification

run_forensics

Point-delta attribution for margin changes

verify_seal

Cryptographic verification of any sealed receipt

list_agents

All registered AI agents with performance stats

get_recommendations

Active savings opportunities with projected impact

Example Conversation

Which customers have negative margins this month?

Three customers are underwater this month: Initech LLC (-$327, margin -330%), Globex Corp (-$89, margin -18%), and Wayne Enterprises (-$12, margin -2%). Initech's spike is driven by a 4x increase in GPT-4 Turbo calls since March 8.

What's causing the Initech spike?

Initech's cost spike traces to their document processing agent switching from GPT-3.5 to GPT-4 Turbo on March 8. Cost per call went from $0.003 to $0.021. At their current volume (847 calls/day), this adds ~$15/day. Recommendation: Route their summarization subtask to GPT-3.5 (saves $12.40/day with minimal quality impact).