--- title: "Mercury API: connect it to your AI chat ยท Hypamoon" description: "The Mercury 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/mercury --- 1. [Connect to](https://hypamoon.com/connect-to) 2. Mercury Payments and billing # Connect Mercury to Hypamoon Yes. Mercury 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 Mercury, answered from its own docs. **Public API docs**\ **Yes.** [Read the docs](https://docs.mercury.com/reference/getting-started-with-your-api) **A key you create yourself**\ **Yes.** Users with permission create a Read Only, Read and Write or Custom token under Settings, Tokens. [docs.mercury.com](https://docs.mercury.com/reference/getting-started-with-your-api) **Versions or a changelog**\ **Yes.** A public changelog lists API additions and behaviour changes; paths carry v1. [docs.mercury.com](https://docs.mercury.com/changelog) **How it signs in**\ An API token as the Basic auth username with an empty password, or as a Bearer token. Read and Write tokens need an IP whitelist. **Webhooks**\ **Yes.** It can tell your app when something changes. [docs.mercury.com](https://docs.mercury.com/reference/webhooks) **Hosting**\ Cloud ## Your own finance screen on Mercury, built around how you approve spending. - Accounts, balances and transactions, straight from Mercury. - AI that sorts transactions and spots unusual payments, with you approving every payment. - A screen for your team and an email when a large payment comes in. ### Ask your chat Answers straight from your Mercury data, in Claude or another chat with the full Hypamoon connection. - Which transactions this month have no category yet? - How much did we spend on software in the last quarter? ### When something happens Mercury sends a webhook to your app, and the app asks AI what happens next. 1. When A new transaction appears on a Mercury account. AI decides AI proposes a category and checks whether the amount is unusual for that vendor. Then The owner gets an email with the proposal and any unusual amounts. ### A screen for your team or customers An app on your own address, with sign-in, on top of the same Mercury data. - For your team A spending screen for your team per vendor and category. ### Add Hypamoon Text messages, email, phone, payments and agents run in the same project as the adapter. - Agent on a schedule An agent prepares a vendor payment from an approved invoice and queues it in Mercury for admin approval. AI proposes, you approve Mercury 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 Mercury 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 are not available in the sandbox. A Custom token with the RequestSendMoney scope can only queue payments that need admin approval. Each organization can register up to 100 webhook endpoints. ## 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 Mercury. API docs: https://docs.mercury.com/reference/getting-started-with-your-api. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20Mercury.%20API%20docs%3A%20https%3A%2F%2Fdocs.mercury.com%2Freference%2Fgetting-started-with-your-api.%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. - [docs.mercury.com/reference/getting-started-with-your-api](https://docs.mercury.com/reference/getting-started-with-your-api) - [docs.mercury.com/changelog](https://docs.mercury.com/changelog) - [docs.mercury.com/reference/webhooks](https://docs.mercury.com/reference/webhooks) Mercury 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 Mercury. 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) - [**Paddle** Open](https://hypamoon.com/connect-to/paddle) - [**Recharge** Open](https://hypamoon.com/connect-to/recharge) - [**Lemon Squeezy** Open](https://hypamoon.com/connect-to/lemon-squeezy) - [**Unzer** Open](https://hypamoon.com/connect-to/unzer) - [**Vipps MobilePay** Open](https://hypamoon.com/connect-to/vipps-mobilepay) - [**Mondu** Possible](https://hypamoon.com/connect-to/mondu) - [**PayPlug** Open](https://hypamoon.com/connect-to/payplug) - [**Billomat** Open](https://hypamoon.com/connect-to/billomat) - [**FastBill** Open](https://hypamoon.com/connect-to/fastbill) - [**Aruba Fatturazione Elettronica** Possible](https://hypamoon.com/connect-to/aruba-fatturazione-elettronica) - [**InvoiceXpress** Open](https://hypamoon.com/connect-to/invoicexpress) - [**Fakturownia** Open](https://hypamoon.com/connect-to/fakturownia) - [**Oblio** Unknown](https://hypamoon.com/connect-to/oblio) - [**SuperFaktura** Open](https://hypamoon.com/connect-to/superfaktura) - [**Szamlazz.hu** Unknown](https://hypamoon.com/connect-to/szamlazz-hu) - [**Billingo** Open](https://hypamoon.com/connect-to/billingo) - [**Elorus** Open](https://hypamoon.com/connect-to/elorus) - [**SmartBill** Possible](https://hypamoon.com/connect-to/smartbill) - [**iDoklad** Open](https://hypamoon.com/connect-to/idoklad) - [**Vyfakturuj** Open](https://hypamoon.com/connect-to/vyfakturuj) - [**Zuora** Open](https://hypamoon.com/connect-to/zuora) - [**Maxio (Chargify)** Open](https://hypamoon.com/connect-to/maxio) - [**Lago** Open](https://hypamoon.com/connect-to/lago) - [**Orb** Open](https://hypamoon.com/connect-to/orb) - [**Metronome** Open](https://hypamoon.com/connect-to/metronome) - [**FastSpring** Open](https://hypamoon.com/connect-to/fastspring) - [**Invoice Ninja** Open](https://hypamoon.com/connect-to/invoice-ninja) - [**Bonsai** Open](https://hypamoon.com/connect-to/bonsai) - [**Zervant** Closed](https://hypamoon.com/connect-to/zervant) - [**Payt** Open](https://hypamoon.com/connect-to/payt) - [**Upflow** Open](https://hypamoon.com/connect-to/upflow) - [**Chaser** Open](https://hypamoon.com/connect-to/chaser) - [**Onguard** Closed](https://hypamoon.com/connect-to/onguard) - [**Kolleno** Unknown](https://hypamoon.com/connect-to/kolleno) - [**Twikey** Open](https://hypamoon.com/connect-to/twikey) - [**Versapay** Open](https://hypamoon.com/connect-to/versapay) - [**Billtrust** Unknown](https://hypamoon.com/connect-to/billtrust) - [**HighRadius** Closed](https://hypamoon.com/connect-to/highradius) - [**Tesorio** Closed](https://hypamoon.com/connect-to/tesorio) - [**ING** Possible](https://hypamoon.com/connect-to/ing) - [**Rabobank** Possible](https://hypamoon.com/connect-to/rabobank) - [**ABN AMRO** Possible](https://hypamoon.com/connect-to/abn-amro) - [**bunq** Open](https://hypamoon.com/connect-to/bunq) - [**Triodos Bank** Possible](https://hypamoon.com/connect-to/triodos) - [**Knab** Possible](https://hypamoon.com/connect-to/knab) - [**KBC** Possible](https://hypamoon.com/connect-to/kbc) - [**BNP Paribas Fortis** Possible](https://hypamoon.com/connect-to/bnp-paribas-fortis) - [**Belfius** Possible](https://hypamoon.com/connect-to/belfius) - [**Deutsche Bank** Possible](https://hypamoon.com/connect-to/deutsche-bank) - [**Commerzbank** Possible](https://hypamoon.com/connect-to/commerzbank) - [**Sparkasse (FinTS)** Possible](https://hypamoon.com/connect-to/sparkasse) - [**N26 Business** Possible](https://hypamoon.com/connect-to/n26-business) - [**Kontist** Open](https://hypamoon.com/connect-to/kontist) - [**BNP Paribas** Possible](https://hypamoon.com/connect-to/bnp-paribas) - [**Credit Agricole** Closed](https://hypamoon.com/connect-to/credit-agricole) - [**Societe Generale** Possible](https://hypamoon.com/connect-to/societe-generale) - [**Shine** Possible](https://hypamoon.com/connect-to/shine) - [**Revolut Business** Possible](https://hypamoon.com/connect-to/revolut-business) - [**Wise Business** Open](https://hypamoon.com/connect-to/wise-business) - [**Checkout.com** Open](https://hypamoon.com/connect-to/checkout-com) - [**Worldline Online Payments** Open](https://hypamoon.com/connect-to/worldline-online-payments) - [**Worldpay** Possible](https://hypamoon.com/connect-to/worldpay) - [**Braintree** Open](https://hypamoon.com/connect-to/braintree) - [**CCV Online Payments** Possible](https://hypamoon.com/connect-to/ccv-online-payments) - [**Rabo Smart Pay** Open](https://hypamoon.com/connect-to/rabo-smart-pay) - [**PAYONE** Open](https://hypamoon.com/connect-to/payone) - [**Nexi Checkout** Open](https://hypamoon.com/connect-to/nexi-checkout) - [**Mangopay** Open](https://hypamoon.com/connect-to/mangopay) - [**Lemonway** Open](https://hypamoon.com/connect-to/lemonway) - [**Rapyd** Open](https://hypamoon.com/connect-to/rapyd) - [**Tpay** Open](https://hypamoon.com/connect-to/tpay) - [**PayU** Open](https://hypamoon.com/connect-to/payu) - [**Redsys** Open](https://hypamoon.com/connect-to/redsys) - [**MONEI** Open](https://hypamoon.com/connect-to/monei) - [**PAYCOMET** Open](https://hypamoon.com/connect-to/paycomet) - [**Dojo** Open](https://hypamoon.com/connect-to/dojo) - [**Cybersource** Open](https://hypamoon.com/connect-to/cybersource) - [**Airwallex** Open](https://hypamoon.com/connect-to/airwallex) - [**Satispay** Open](https://hypamoon.com/connect-to/satispay) - [**Global Payments** Possible](https://hypamoon.com/connect-to/global-payments) - [**Barclays** Possible](https://hypamoon.com/connect-to/barclays) - [**HSBC** Possible](https://hypamoon.com/connect-to/hsbc) - [**Lloyds Bank** Possible](https://hypamoon.com/connect-to/lloyds-bank) - [**NatWest** Possible](https://hypamoon.com/connect-to/natwest) - [**Starling Bank** Open](https://hypamoon.com/connect-to/starling-bank) - [**Tide** Possible](https://hypamoon.com/connect-to/tide) - [**Monzo Business** Closed](https://hypamoon.com/connect-to/monzo-business) - [**JPMorgan Chase** Possible](https://hypamoon.com/connect-to/jpmorgan-chase) - [**Bank of America** Possible](https://hypamoon.com/connect-to/bank-of-america) - [**Wells Fargo** Possible](https://hypamoon.com/connect-to/wells-fargo) - [**GoCardless Bank Account Data** Open](https://hypamoon.com/connect-to/gocardless-bank-account-data) - [**Tink** Possible](https://hypamoon.com/connect-to/tink) - [**Plaid** Open](https://hypamoon.com/connect-to/plaid) - [**TrueLayer** Possible](https://hypamoon.com/connect-to/truelayer) - [**Yapily** Possible](https://hypamoon.com/connect-to/yapily) - [**Salt Edge** Possible](https://hypamoon.com/connect-to/salt-edge) - [**Ponto (Isabel Group)** Possible](https://hypamoon.com/connect-to/ponto) - [**finAPI** Possible](https://hypamoon.com/connect-to/finapi) - [**Powens** Possible](https://hypamoon.com/connect-to/powens) - [**Bridge (Bridge API)** Possible](https://hypamoon.com/connect-to/bridge-api) - [**Enable Banking** Possible](https://hypamoon.com/connect-to/enable-banking) - [**MX** Possible](https://hypamoon.com/connect-to/mx) - [**Mastercard Open Finance (Finicity)** Possible](https://hypamoon.com/connect-to/mastercard-open-finance) - [**Teller** Possible](https://hypamoon.com/connect-to/teller) - [**Recommand** Open](https://hypamoon.com/connect-to/recommand) - [**Basware** Possible](https://hypamoon.com/connect-to/basware) - [**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 Mercury? 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=mercury) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~mercury#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~mercury#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)