--- title: "Papierkram API: connect it to your AI chat ยท Hypamoon" description: "The Papierkram API is documented, but access goes through Papierkram first. What it takes to connect it to your AI chat with Hypamoon, with sources." url: https://hypamoon.com/connect-to/papierkram --- 1. [Connect to](https://hypamoon.com/connect-to) 2. Papierkram ERP and accounting # Connect Papierkram to Hypamoon Possible, with help from Papierkram. The API is documented, but you cannot just create a key: access goes through Papierkram first. Possible ## The check Three questions about the API of Papierkram, answered from its own docs. **Public API docs**\ **Yes.** A demo of the OpenAPI documentation is public; the full docs are in the account under Settings, API. [Read the docs](https://www.papierkram.de/hilfe/api/) **A key you create yourself**\ **Yes.** The API documentation and your key are in your own account under Einstellungen, API. [papierkram.de](https://www.papierkram.de/hilfe/api/) **Versions or a changelog**\ **No.** The API is marked as beta. [papierkram.de](https://www.papierkram.de/hilfe/api/) **How it signs in**\ An API key that you create in your Papierkram account. **Webhooks**\ **Not confirmed.** **Hosting**\ Cloud **Condition**\ The API is still in beta and limited to a number of credits per month, depending on the package (M or L). ## In practice What it takes in a real Papierkram administration. **Getting access**\ Not confirmed; the account shows the API documentation under Settings, API. **Limits**\ Credits per month: 10,000 on plan M and 20,000 on plan L; each call uses a number of credits. [papierkram.de](https://www.papierkram.de/hilfe/api/) **Writing**\ **Read and write.** You can create data in Papierkram, for example documents, at a higher credit cost than reads. **Cost**\ API credits are included in plans M and L; extra credits through support. [papierkram.de](https://www.papierkram.de/hilfe/api/) ## What you can build Create invoices and contacts in Papierkram from your own order flow, and ask your chat which invoices are overdue. 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](https://hypamoon.com/docs/adapters) ### 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. - The API can read and, since June 2023, also write data. Because it is in beta, expect changes. ## Try it in your chat First get access from Papierkram. Then fill in what to read and write, and send it. Say this in your chat > Build the Hypamoon recipe build-an-adapter for Papierkram. API docs: https://api-doc.papierkram.de/api/v1/api-docs/index.html. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20Papierkram.%20API%20docs%3A%20https%3A%2F%2Fapi-doc.papierkram.de%2Fapi%2Fv1%2Fapi-docs%2Findex.html.%20Read%3A%20%5Bwhat%5D.%20Write%3A%20%5Bwhat%2C%20or%20nothing%5D.) 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](https://hypamoon.com/r/build-an-adapter) ## Sources Checked on 7 November 2026. - [www.papierkram.de/hilfe/api/](https://www.papierkram.de/hilfe/api/) Papierkram 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 Papierkram. Found something that changed? 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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](https://claude.ai/new?q=Check%20if%20%5Bsoftware%5D%20has%20an%20open%20API%20that%20a%20Hypamoon%20adapter%20can%20use%3A%20public%20API%20docs%2C%20a%20key%20or%20token%20I%20can%20create%20myself%20without%20asking%20the%20vendor%2C%20and%20versions%20or%20a%20changelog.%20Link%20the%20pages%20you%20used.) [Open in ChatGPT](https://chatgpt.com/?q=Check%20if%20%5Bsoftware%5D%20has%20an%20open%20API%20that%20a%20Hypamoon%20adapter%20can%20use%3A%20public%20API%20docs%2C%20a%20key%20or%20token%20I%20can%20create%20myself%20without%20asking%20the%20vendor%2C%20and%20versions%20or%20a%20changelog.%20Link%20the%20pages%20you%20used.) Fill in the name of your software. Checking needs no connection to Hypamoon. ## Ready to connect Papierkram? Connect your chat once, then ask it to build the adapter. [Start free](https://app.hypamoon.com/?mode=signup&utm_source=connect-to&utm_campaign=papierkram) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~papierkram#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~papierkram#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)