--- title: "Zenvoices API: connect it to your AI chat ยท Hypamoon" description: "The Zenvoices API is open, signs in with a bearer token and sends webhooks. What your AI chat can build with it on Hypamoon, with sources." url: https://hypamoon.com/connect-to/zenvoices --- 1. [Connect to](https://hypamoon.com/connect-to) 2. Zenvoices ERP and accounting # Connect Zenvoices to Hypamoon Yes. Zenvoices has a public, versioned API and you create the key yourself, so your chat can write the adapter. Open ## The check Three questions about the API of Zenvoices, answered from its own docs. **Public API docs**\ **Yes.** Public API guide plus a Swagger UI and OpenAPI file at app.zenvoices.com/swagger. [Read the docs](https://www.zenvoices.com/blog/public-api-docs/) **A key you create yourself**\ **Yes.** An admin grants API permissions to a user under Manage, Organisation, Users; users with only API access are not billed. [zenvoices.com](https://www.zenvoices.com/blog/public-api-docs/) **Versions or a changelog**\ **Yes.** Versioned base URL (public-api/v1) and a dated changelog from 2021 to 2026. [zenvoices.com](https://www.zenvoices.com/blog/public-api-docs/) **How it signs in**\ Log in with the API user's username, password and organisation code to get a bearer token valid for one day, plus a refresh token valid for one year. **Webhooks**\ **Yes.** It can tell your app when something changes. [zenvoices.com](https://www.zenvoices.com/blog/public-api-docs/) **Hosting**\ Cloud ## Your own overview of purchase invoices on Zenvoices, built around how your team approves. - Purchase invoices, approval status and exports, straight from Zenvoices. - AI that spots invoices stuck in approval and writes a short reminder, with you deciding who gets it. - A screen for your team and an email when an export is done. ### Ask your chat Answers straight from your Zenvoices data, in Claude or another chat with the full Hypamoon connection. - Which purchase invoices have been waiting for approval for more than a week? - Which suppliers sent the most invoices this quarter? ### When something happens Zenvoices sends a webhook to your app, and the app asks AI what happens next. 1. When The approval status of a purchase invoice changes. AI decides AI checks whether the invoice is now complete or still waiting on someone. Then The next approver gets an email with the invoice and a short summary. ### A screen for your team or customers An app on your own address, with sign-in, on top of the same Zenvoices data. - For your team Your team sees open purchase invoices per approver and per company. Zenvoices stays the core: your chat builds the rest on its API, as an adapter plus an app and agents in your Hypamoon project. Reading starts after you click Allow in the portal. Every change an agent or a chat makes in Zenvoices 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. - Webhooks cover new, exported and queued financial transactions, approval status changes and finished master data syncs. The limit is 10 requests per second per endpoint. ## 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 Zenvoices. API docs: https://www.zenvoices.com/blog/public-api-docs/. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20Zenvoices.%20API%20docs%3A%20https%3A%2F%2Fwww.zenvoices.com%2Fblog%2Fpublic-api-docs%2F.%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.zenvoices.com/blog/public-api-docs/](https://www.zenvoices.com/blog/public-api-docs/) Zenvoices 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 Zenvoices. 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 Zenvoices? 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=zenvoices) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~zenvoices#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~zenvoices#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)