--- title: "Clearfacts API: can your AI chat use it? ยท Hypamoon" description: "What we could and could not confirm about the Clearfacts API: public docs, a key you create yourself and a stable version. With sources." url: https://hypamoon.com/connect-to/clearfacts --- 1. [Connect to](https://hypamoon.com/connect-to) 2. Clearfacts ERP and accounting # Connect Clearfacts to Hypamoon We could not confirm it. Clearfacts 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 Clearfacts, answered from its own docs. **Public API docs**\ **Yes.** Public GraphQL API documentation, available to all users, partners and app developers. [Read the docs](https://developer.clearfacts.be) **A key you create yourself**\ **Yes.** A user creates a personal access token or registers an OpenID Connect application under Integrations in the web platform. [developer.clearfacts.be](https://developer.clearfacts.be) **Versions or a changelog**\ **Not confirmed.** **How it signs in**\ A personal access token that does not expire, or OpenID Connect with an app you register yourself (one hour access tokens, 30 day refresh tokens). **Webhooks**\ **Not confirmed.** **Hosting**\ Cloud ## In practice What it takes in a real Clearfacts administration. **Getting access**\ Create a personal access token or register an application under Integrations in Clearfacts. **Limits**\ None published. **Writing**\ **Read and write.** Upload invoices and files to an administration's inbox or archive and manage associates; most other data is read only. **Cost**\ Not published. ## What you can build Upload purchase invoices and files from your own tools straight into your accountant's Clearfacts inbox and list the documents per administration. 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. ## Try it in your chat First get access from Clearfacts. Then fill in what to read and write, and send it. Say this in your chat > Build the Hypamoon recipe build-an-adapter for Clearfacts. API docs: https://developer.clearfacts.be. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20Clearfacts.%20API%20docs%3A%20https%3A%2F%2Fdeveloper.clearfacts.be.%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. - [developer.clearfacts.be](https://developer.clearfacts.be) Clearfacts 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 Clearfacts. 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 Clearfacts? 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=clearfacts) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~clearfacts#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~clearfacts#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)