Build with Kalle
The Kalle API gives your own code the same models that build apps in Appmake. Send a conversation, get an answer, and let Kalle call your functions, read your files or work in a browser for you.
Everything runs over plain HTTPS and JSON. Every request goes to one base URL:
https://api.kalle.build/v1What you can build
- Answers and writing with the Messages endpoint: support replies, product copy, summaries and plans.
- Live interfaces with Streaming, so text appears while Kalle writes it.
- Agents that act with Tool use and Kalle Browser.
- Work on what people see with Files and images: screenshots, PDFs and documents.
Every page
- QuickstartMake your first request to the Kalle API in a few minutes.
- Authentication and API keysCreate, use and rotate kalle_sk_ keys safely.
- ModelsKalle Turbo, Design, Turbo Max, Turbo Ultra and Auto, and how effort works.
- Messages endpointThe one endpoint for conversations, reasoning and structured answers.
- StreamingReceive the answer as it is written, with server-sent events.
- Tool useLet Kalle call your functions and use the results.
- Kalle Browser via the APIHand browser tasks to Kalle and approve the steps that matter.
- Files and imagesSend screenshots, PDFs and documents along with your prompt.
- Rate limitsHow limits work, the headers to read and how to back off.
- ErrorsStatus codes, error types and what to do about each one.
- PricingPrices per 1M tokens for every Kalle model.
- ChangelogEvery change to the Kalle API, newest first.