Skip to content
Hypamoon
Works in Claude, ChatGPT and Copilot Start free

ERP and accounting

Connect Mooncard to Hypamoon

Possible, with help from Mooncard. The API is documented, but you cannot just create a key: access goes through Mooncard first.

Possible

The check

Three questions about the API of Mooncard, answered from its own docs.

Public API docs
Yes. Read the docs
A key you create yourself
No. Sandbox credentials work at once, but Mooncard reviews every production credential before it can reach real data. developers.mooncard.co
Versions or a changelog
Yes. Versioned API (v3 in the path). developers.mooncard.co
How it signs in
OAuth 2 credentials from the Mooncard developer portal, with authorization code or password flow; tokens last two hours.
Webhooks
Yes. It can tell your app when something changes. developers.mooncard.co
Hosting
Cloud
Condition
Mooncard reviews each production credential before it can read real company data.

Your own expense overview on Mooncard, once your credential is approved.

  • Expenses, cards and receipts, from the scopes Mooncard approves.
  • AI that checks each expense and proposes the category, with a person approving.
  • A screen for team leads and an email when receipts are missing.

Ask your chat

Answers straight from your Mooncard data, in Claude or another chat with the full Hypamoon connection.

  • Which expenses from this month have no receipt yet?
  • Which cards had the highest spend last week?

When something happens

Mooncard sends a webhook to your app, and the app asks AI what happens next.

  1. When

    An expense is created or updated in Mooncard.

    AI decides

    AI checks amount, VAT and category against your rules.

    Then

    Finance gets an email when something needs a look.

A screen for your team or customers

An app on your own address, with sign-in, on top of the same Mooncard data.

  • For your team

    Team leads see their team's expenses and missing receipts per month.

Mooncard 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 Mooncard waits for your approval, one call at a time. How adapters work

Good to know

  • Mooncard signs in with OAuth or signed requests only, with tokens that expire. The Hypamoon vault holds a fixed key today, so an adapter for Mooncard takes more work: ask your chat to check this first.
  • Anyone can open a developer account and a sandbox; production scopes and usage context cannot be changed after creation. Webhooks cover expense create, update and delete.

Try it in your chat

First get access from Mooncard. Then fill in what to read and write, and send it.

Say this in your chat

Build the Hypamoon recipe build-an-adapter for Mooncard. API docs: https://developers.mooncard.co/docs. Read: [what]. Write: [what, or nothing].

Open in Claude

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

Sources

Checked on 7 November 2026.

Mooncard 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 Mooncard. Found something that changed? Tell us at support.

More in erp and accounting

All 1094 tools

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 Open in ChatGPT

Fill in the name of your software. Checking needs no connection to Hypamoon.

Ready to connect Mooncard?

Connect your chat once, then ask it to build the adapter.

Start free

Works in Claude, ChatGPT and Copilot. Add to Claude Add to ChatGPT Add to Copilot