Connect Claude

Claude calls these connectors. Adding one takes a minute and works on the web, in Claude Desktop and on your phone, on every plan including Free.

Add the connector

  • Open Customize in the left sidebar, then the Connectors tab.
  • Click + and choose Add custom connector. Hiasynth is on its way into Claude's connector directory; until it's listed, this is the route.
  • Call it Hiasynth, paste this address, click Add, then Connect.
https://mcp.hiasynth.co
Claude's Add custom connector dialog with the Hiasynth address filled in

Customize → Connectors → + → Add custom connector

Say yes to the handshake

A Hiasynth page opens in your browser. Sign in with Google, GitHub or Discord (new here? that just made your account), read what Claude is asking for, and click Approve and subscribe. Claude is now connected, and your plan opens in a second tab so you can finish up there.

The Hiasynth consent card, signed in, with the Approve and subscribe button

The card tells you which app is asking and where you'll be sent back

Ask

Subscribe in the tab that opened, come back to Claude, and type:

Households in Bavaria with children under ten and an electric car. How many, where are they densest, and how does that compare to Baden-Württemberg?

Watch what happens. Claude doesn't answer from memory. It reaches for Hiasynth, runs the count, and comes back with numbers, places and a comparison. You just asked a continent a question.

Already subscribed? Click Approve instead and ask straight away. If Claude answers without reaching for Hiasynth, open the + menu in the chat and make sure the connector is on for that conversation.

What next

  • What to ask: questions that show what Hiasynth is good at.
  • Pricing: one subscription, credits that meter what you ask.
  • Troubleshooting: the short list of things that go wrong, and the fix for each.