--- title: "Barclays API: connect it to your AI chat ยท Hypamoon" description: "The Barclays API is documented, but access goes through Barclays first. What it takes to connect it to your AI chat with Hypamoon, with sources." url: https://hypamoon.com/connect-to/barclays --- 1. [Connect to](https://hypamoon.com/connect-to) 2. Barclays Payments and billing # Connect Barclays to Hypamoon Possible, with help from Barclays. The API is documented, but you cannot just create a key: access goes through Barclays first. Possible ## The check Three questions about the API of Barclays, answered from its own docs. **Public API docs**\ **Yes.** Barclays API Exchange documents Open Banking APIs (account information, payment initiation, confirmation of funds, consent) with a sandbox and a knowledge base. [Read the docs](https://developer.barclays.com/open-banking) **A key you create yourself**\ **No.** Production Open Banking APIs need FCA authorisation and enrolment in the Open Banking Directory; Barclays offers no API key for a business to read its own accounts. [developer.barclays.com](https://developer.barclays.com/support/knowledge-base) **Versions or a changelog**\ **Yes.** The APIs follow the versioned UK Open Banking Standard. [developer.barclays.com](https://developer.barclays.com/open-banking) **How it signs in**\ OAuth 2.0 and OpenID Connect (FAPI) with a software statement from the Open Banking Directory and mutual TLS. **Webhooks**\ **Not confirmed.** **Hosting**\ Cloud **Condition**\ Only FCA authorised providers can use the production APIs. A normal business reads its Barclays accounts through a licensed aggregator; TrueLayer, for example, lets non-regulated clients use its own consent flow (https://docs.truelayer.com/docs/data-api-basics). ## What you can build See your Barclays business account transactions in your own dashboard through an open banking aggregator, and match incoming payments to invoices. 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 - Barclays signs in with OAuth or signed requests only, with tokens that expire. The Hypamoon vault holds a fixed key today, so an adapter for Barclays takes more work: ask your chat to check this first. - Barclays' public APIs are Open Banking APIs for regulated third party providers. Statement files from online banking are the other route for your own data. ## Try it in your chat First get access from Barclays. Then fill in what to read and write, and send it. Say this in your chat > Build the Hypamoon recipe build-an-adapter for Barclays. API docs: https://developer.barclays.com/open-banking. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20Barclays.%20API%20docs%3A%20https%3A%2F%2Fdeveloper.barclays.com%2Fopen-banking.%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.barclays.com/open-banking](https://developer.barclays.com/open-banking) - [developer.barclays.com/support/knowledge-base](https://developer.barclays.com/support/knowledge-base) Barclays 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 Barclays. 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 Barclays? 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=barclays) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~barclays#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~barclays#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)