--- title: "Collmex API: can your AI chat use it? ยท Hypamoon" description: "What we could and could not confirm about the Collmex API: public docs, a key you create yourself and a stable version. With sources." url: https://hypamoon.com/connect-to/collmex --- 1. [Connect to](https://hypamoon.com/connect-to) 2. Collmex ERP and accounting # Connect Collmex to Hypamoon We could not confirm it. Collmex passes some of our checks, but not all three could be confirmed from its own docs. Unknown ## The check Three questions about the API of Collmex, answered from its own docs. **Public API docs**\ **Yes.** Public API help with queries, data imports and actions per record type. [Read the docs](https://www.collmex.de/c.cmx?1005,1,help,api) **A key you create yourself**\ **Yes.** You create a separate user with the API only flag; API only users are not charged. [collmex.de](https://www.collmex.de/c.cmx?1005,1,help,api_Authentifizierung) **Versions or a changelog**\ **Not confirmed.** No versioning or changelog found for the API. **How it signs in**\ Each upload starts with a LOGIN record holding the username and password of an API only user. **Webhooks**\ **Yes.** It can tell your app when something changes. [collmex.de](https://www.collmex.de/c.cmx?1005,1,help,api_Benachrichtigungen) **Hosting**\ Cloud ## In practice What it takes in a real Collmex administration. **Getting access**\ Create a user with the API only flag in Collmex and post CSV to https://www.collmex.de/c.cmx?,0,data\_exchange. **Limits**\ Notifications are sent at most once per minute and stop after 100 unacknowledged ones. [collmex.de](https://www.collmex.de/c.cmx?1005,1,help,api_Benachrichtigungen) **Writing**\ **Read and write.** Data imports for invoices, orders, payment confirmations and more, plus actions such as a billing run. **Cost**\ API only users are not charged. [collmex.de](https://www.collmex.de/c.cmx?1005,1,help,api_Authentifizierung) ## What you can build Push orders and invoices from your own shop into Collmex, and ask your chat for open items per customer. 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. - Data goes in and out as CSV over HTTPS POST to an address with your customer number. Notifications call your URL when something changes; you then fetch the changes yourself. ## Try it in your chat First get access from Collmex. Then fill in what to read and write, and send it. Say this in your chat > Build the Hypamoon recipe build-an-adapter for Collmex. API docs: https://www.collmex.de/c.cmx?1005,1,help,api. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20Collmex.%20API%20docs%3A%20https%3A%2F%2Fwww.collmex.de%2Fc.cmx%3F1005%2C1%2Chelp%2Capi.%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.collmex.de/c.cmx?1005,1,help,api](https://www.collmex.de/c.cmx?1005,1,help,api) - [www.collmex.de/c.cmx?1005,1,help,api\_Authentifizierung](https://www.collmex.de/c.cmx?1005,1,help,api_Authentifizierung) - [www.collmex.de/c.cmx?1005,1,help,api\_Benachrichtigungen](https://www.collmex.de/c.cmx?1005,1,help,api_Benachrichtigungen) Collmex 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 Collmex. 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 Collmex? 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=collmex) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~collmex#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~collmex#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)