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  1. 1

    Open Claude Customize

  2. 2

    Add connector

    Name
    Constants
    URL
    https://www.constants.io/api/mcp
  3. 3

    Connect

    Click Add → Connect, continue with your email. Ask in a new chat to create a tool.

Just describe it.Claudebuilds it.

Claude
Build a tool that pulls yesterday’s Stripe revenue and posts it to Slack — and run it now for 6/1
Claude
Generated tool·Ran in 3.2s

Stripe Revenue → Slack

Daily revenue digest

Complete
Revenue · Jun 1, 2026
$48,920
Transactions
312
New customers
41
Posted to #revenue in Slack

Done — I built the tool and ran it for 6/1. $48,920 in revenue, posted to #revenue. Want me to run this automatically every morning?