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Payments and billing

Connect TrueLayer to Hypamoon

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

Possible

The check

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

Public API docs
Yes. Read the docs
A key you create yourself
No. Console sign up and sandbox keys are self service, but to go live you send your live client_id to the TrueLayer sales team. docs.truelayer.com
Versions or a changelog
Yes. Versioned products (v3 prefix) and a public changelog. docs.truelayer.com
How it signs in
client_id and client_secret from Console return access tokens; payment requests are signed with your own EC key, and account data needs user consent.
Webhooks
Yes. It can tell your app when something changes. docs.truelayer.com
Hosting
Cloud
Condition
Live access through the TrueLayer sales team. Without your own licence, you must use TrueLayer's consent flow.

Your own bank feed on TrueLayer, built around how you reconcile.

  • Accounts, balances and transactions from the banks you connect.
  • AI that matches payments to invoices, with your team confirming each match.
  • A screen for your team and an email with what is still open.

Ask your chat

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

  • Which payments from last week have no matching invoice?
  • What came in on our main account yesterday?

On a schedule

An agent checks TrueLayer every 15 minutes and decides what happens next.

  1. Every 15 minutes

    Every morning, the transactions of the day before.

    AI decides

    AI matches payments to open invoices and lists the rest.

    Then

    Your finance team gets one email with what to check.

A screen for your team or customers

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

  • For your team

    A reconciliation screen for your team per bank account.

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

Good to know

  • TrueLayer signs in with OAuth or signed requests only, with tokens that expire. The Hypamoon vault holds a fixed key today, so an adapter for TrueLayer takes more work: ask your chat to check this first.
  • TrueLayer recommends Data API v3 for new integrations.

Try it in your chat

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

Say this in your chat

Build the Hypamoon recipe build-an-adapter for TrueLayer. API docs: https://docs.truelayer.com/. 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.

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

More in payments and billing

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 TrueLayer?

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

Start free

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