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ERP and accounting

Connect BuchhaltungsButler to Hypamoon

Yes. BuchhaltungsButler has a public, versioned API and you create the key yourself, so your chat can write the adapter.

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The check

Three questions about the API of BuchhaltungsButler, answered from its own docs.

Public API docs
Yes. Read the docs
A key you create yourself
Yes. You switch on the API yourself under Einstellungen, Schnittstellen und API-Zugang, and find your API client, API secret and API key there. wissen.buchhaltungsbutler.de
Versions or a changelog
Yes. The API carries a version in its path (v1). app.buchhaltungsbutler.de
How it signs in
HTTP Basic with the API client and API secret, plus the customer's API key as a form field.
Webhooks
Not confirmed.
Hosting
Cloud

In practice

What it takes in a real BuchhaltungsButler administration.

Getting access
Not confirmed; the customer registers for API access and finds the api_key in the company settings, but the client and secret are issued in a way not described.
Limits
100 requests per customer per minute. app.buchhaltungsbutler.de
Writing
Not confirmed.
Cost
Not published.

What you can build

Send receipts and invoices from your own tools into BuchhaltungsButler, and ask your chat which documents are still unbooked.

Your chat writes it as a Hypamoon adapter from the docs above. Reading starts after you click Allow in the portal, and every write waits for your approval, one call at a time. How adapters work

Good to know

  • Your adapter uses a fixed key: you paste it once in the Hypamoon portal, never in the chat, and it only goes to the API host you allow.
  • Listed partner programs only need the API key that BuchhaltungsButler shows when you switch the partner on.

Try it in your chat

Fill in what to read and write, and send it.

Say this in your chat

Build the Hypamoon recipe build-an-adapter for BuchhaltungsButler. API docs: https://app.buchhaltungsbutler.de/docs/api/v1. Read: [what]. Write: [what, or nothing].

Open in Claude

In Claude, or another chat with the full Hypamoon connection; adapters are not in ChatGPT yet. You paste the key in the portal, never in the chat. The full recipe

Sources

Checked on 7 November 2026.

BuchhaltungsButler is a name of its owner, used here only to describe the software. This page is not an official integration and Hypamoon has no partnership with BuchhaltungsButler. Found something that changed? Tell us at support.

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All 1094 tools

Tool not listed? Ask the chat to check its API.

The same three checks work for any software. Your chat reads the vendor's own docs and tells you what it found.

Say this in your chat

Check if [software] has an open API that a Hypamoon adapter can use: public API docs, a key or token I can create myself without asking the vendor, and versions or a changelog. Link the pages you used.

Open in Claude Open in ChatGPT

Fill in the name of your software. Checking needs no connection to Hypamoon.

Ready to connect BuchhaltungsButler?

Connect your chat once, then ask it to build the adapter.

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