--- title: "Maxio (Chargify) API: connect it to your AI chat ยท Hypamoon" description: "The Maxio (Chargify) API is open, signs in with an API key and sends webhooks. What your AI chat can build with it on Hypamoon, with sources." url: https://hypamoon.com/connect-to/maxio --- 1. [Connect to](https://hypamoon.com/connect-to) 2. Maxio (Chargify) Payments and billing # Connect Maxio (Chargify) to Hypamoon Yes. Maxio (Chargify) 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 Maxio (Chargify), answered from its own docs. **Public API docs**\ **Yes.** The Advanced Billing developer portal covers authentication, versioning, webhooks and every endpoint. [Read the docs](https://developers.maxio.com/llms.txt) **A key you create yourself**\ **Yes.** You set up an API key from your Advanced Billing site and use it with your site subdomain. [github.com](https://github.com/maxio-com/ab-python-sdk) **Versions or a changelog**\ **Yes.** The portal has a versioning page and versioned SDKs. [developers.maxio.com](https://developers.maxio.com/llms.txt) **How it signs in**\ API key as the username in HTTP Basic auth with x as the password, sent to your own site subdomain. **Webhooks**\ **Yes.** It can tell your app when something changes. [developers.maxio.com](https://developers.maxio.com/llms.txt) **Hosting**\ Cloud ## Your own subscription overview on Maxio, built around how you bill your customers. - Customers, subscriptions, invoices and usage, straight from Maxio Advanced Billing. - AI that spots customers about to churn, with you approving every change. - A screen for your team and an email when a big customer cancels. ### Ask your chat Answers straight from your Maxio (Chargify) data, in Claude or another chat with the full Hypamoon connection. - Which subscriptions are past due this week? - Which customers downgraded their plan last month? ### When something happens Maxio (Chargify) sends a webhook to your app, and the app asks AI what happens next. 1. When A subscription changes state, for example to canceled or past due. AI decides AI looks at the plan, the payment history and the usage and decides whether someone should call. Then The account owner gets an email with the summary. ### A screen for your team or customers An app on your own address, with sign-in, on top of the same Maxio (Chargify) data. - For your customers Customers sign in and see their plan, their invoices and what they used this month. ### Add Hypamoon Text messages, email, phone, payments and agents run in the same project as the adapter. - Agent on a schedule An agent changes a customer's plan when they ask for it, after you approve. AI proposes, you approve Maxio (Chargify) 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 Maxio (Chargify) 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. - Maxio Advanced Billing is the former Chargify. Every site has its own subdomain in the API address. ## 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 Maxio (Chargify). API docs: https://developers.maxio.com/http/getting-started/overview. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20Maxio%20(Chargify%29.%20API%20docs%3A%20https%3A%2F%2Fdevelopers.maxio.com%2Fhttp%2Fgetting-started%2Foverview.%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. - [developers.maxio.com/llms.txt](https://developers.maxio.com/llms.txt) - [github.com/maxio-com/ab-python-sdk](https://github.com/maxio-com/ab-python-sdk) Maxio (Chargify) 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 Maxio (Chargify). Found something that changed? Tell us at [support](https://hypamoon.com/support#contact). ## More in payments and billing - [**Adyen** Open](https://hypamoon.com/connect-to/adyen) - [**Authorize.net** Open](https://hypamoon.com/connect-to/authorize-net) - [**Buckaroo** Unknown](https://hypamoon.com/connect-to/buckaroo) - [**Chargebee** Open](https://hypamoon.com/connect-to/chargebee) - [**Klarna** Open](https://hypamoon.com/connect-to/klarna) - [**Mollie** Open](https://hypamoon.com/connect-to/mollie) - [**MultiSafepay** Open](https://hypamoon.com/connect-to/multisafepay) - [**PayPal** Open](https://hypamoon.com/connect-to/paypal) - [**Recurly** Open](https://hypamoon.com/connect-to/recurly) - [**Stripe** Open](https://hypamoon.com/connect-to/stripe) - [**WeFact** Open](https://hypamoon.com/connect-to/wefact) - [**Pay.** Open](https://hypamoon.com/connect-to/pay-nl) - [**Billit** Open](https://hypamoon.com/connect-to/billit) - [**easybill** Open](https://hypamoon.com/connect-to/easybill) - [**GoCardless** Open](https://hypamoon.com/connect-to/gocardless) - 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[**Avalara E-Invoicing** Possible](https://hypamoon.com/connect-to/avalara-e-invoicing) - [**Scrada** Possible](https://hypamoon.com/connect-to/scrada) - [**Digipoort** Possible](https://hypamoon.com/connect-to/digipoort) - [**Storecove** Unknown](https://hypamoon.com/connect-to/storecove) - [**Chorus Pro** Unknown](https://hypamoon.com/connect-to/chorus-pro) - [**Sovos** Possible](https://hypamoon.com/connect-to/sovos) - [**EDICOM** Unknown](https://hypamoon.com/connect-to/edicom) - [**ecosio** Possible](https://hypamoon.com/connect-to/ecosio) - [**Banqup** Open](https://hypamoon.com/connect-to/banqup) - [**Tradeshift** Open](https://hypamoon.com/connect-to/tradeshift) [All 1094 tools](https://hypamoon.com/connect-to) ## 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](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 Maxio (Chargify)? 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=maxio) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~maxio#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~maxio#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)