Integration
Connect Handwrytten to GrünstromIndex
When something happens in Handwrytten, your agent does the next thing in GrünstromIndex. Describe it in plain language and the automation is built, tested on every branch and kept running.
Build it
What do you want Handwrytten and GrünstromIndex to do together?
Describe it and your agent reads both APIs, builds the automation, tests every branch and ships it. The list below is what exists today, not the limit.
Ask the assistant
You'll sign in before anything runs. What you typed comes with you.
Or work from Claude Code
Install the APIANT plugin for Claude Code and build, edit, test and read run history from your terminal. Every plan gets this, including free, and it spends no assistant credits.
Connect Claude CodeEverything your agent can do with Handwrytten and GrünstromIndex
Triggers and actions 1 trigger · 10 actions
Trigger
Address ListTriggers when Recipient Addresses are needed.
- Add Order to Basket
Adds an order to a basket. If sending multiple cards at once, use this for each order, then check-out with Send Basket
- Create Contact
Creates a new address book entry for the Handwrytten address book. (Note: other zaps don't really use the address book, but the rest of Handwrytten does.).
- Create Custom Card
Creates a new custom 5x7 card with full bleed cover, using specified images, fonts, and logos.
- Empty Basket
Clears your basket.
- Find Contact
Finds a contact in your address book.
- Update Contact
Updates an entry in the Handwrytten address book.
- Upload Custom Image
Adds an image to Handwrytten for use in custom card designs.
Action
Get best hour for green energy useFind the best upcoming hour to consume electricity based on renewable-energy availability for a German postal code, within a configurable lookahead window. GET /v2.0/gsi/bestHour (params zip, timeframe).
- Get current GrünstromIndex
Get the current GrünstromIndex value (share of renewable energy right now) for a German postal code. GET /v2.0/gsi/pps (param zip).
- Get green energy forecast
Fetch the 72-hour GrünstromIndex forecast (share of renewable energy, CO2 intensity, and pricing signal) for an address or place name. GET /v2.0/gsi/prediction (query param q).
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.