--- title: "Boulevard API: connect it to your AI chat ยท Hypamoon" description: "The Boulevard API is documented, but access goes through Boulevard first. What it takes to connect it to your AI chat with Hypamoon, with sources." url: https://hypamoon.com/connect-to/boulevard --- 1. [Connect to](https://hypamoon.com/connect-to) 2. Boulevard Scheduling # Connect Boulevard to Hypamoon Possible, with help from Boulevard. The API is documented, but you cannot just create a key: access goes through Boulevard first. Possible ## The check Three questions about the API of Boulevard, answered from its own docs. **Public API docs**\ **Yes.** Public developer portal with Admin API, Client API and webhooks. [Read the docs](https://developers.joinblvd.com/2020-01/admin-api/authentication) **A key you create yourself**\ **No.** API access for custom apps is part of the Enterprise plan. [support.boulevard.io](https://support.boulevard.io/en/articles/6265963-connect-custom-and-public-apps-to-boulevard) **Versions or a changelog**\ **Yes.** Docs are versioned by date, such as 2020-01. [developers.joinblvd.com](https://developers.joinblvd.com/2020-01/admin-api/authentication) **How it signs in**\ An application key and secret plus the business ID; you sign a token with HMAC SHA256 and send key and token as basic auth. **Webhooks**\ **Yes.** It can tell your app when something changes. [developers.joinblvd.com](https://developers.joinblvd.com/2020-01/admin-api/authentication) **Hosting**\ Cloud **Condition**\ Custom apps need the Boulevard Enterprise plan. ## What you can build Sync clients, appointments and memberships into your own dashboard, and book appointments from your own site, on the Enterprise plan. 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 - 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. ## Try it in your chat First get access from Boulevard. Then fill in what to read and write, and send it. Say this in your chat > Build the Hypamoon recipe build-an-adapter for Boulevard. API docs: https://developers.joinblvd.com/2020-01/admin-api/authentication. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20Boulevard.%20API%20docs%3A%20https%3A%2F%2Fdevelopers.joinblvd.com%2F2020-01%2Fadmin-api%2Fauthentication.%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.joinblvd.com/2020-01/admin-api/authentication](https://developers.joinblvd.com/2020-01/admin-api/authentication) - [support.boulevard.io/en/articles/6265963-connect-custom-and-public-apps-to-boulevard](https://support.boulevard.io/en/articles/6265963-connect-custom-and-public-apps-to-boulevard) Boulevard 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 Boulevard. Found something that changed? Tell us at [support](https://hypamoon.com/support#contact). ## More in scheduling - [**Acuity Scheduling** Open](https://hypamoon.com/connect-to/acuity-scheduling) - [**Cal.com** Open](https://hypamoon.com/connect-to/cal-com) - [**Calendly** Open](https://hypamoon.com/connect-to/calendly) - [**Microsoft Bookings** Open](https://hypamoon.com/connect-to/microsoft-bookings) - [**Salonized** Closed](https://hypamoon.com/connect-to/salonized) - [**SimplyBook.me** Open](https://hypamoon.com/connect-to/simplybook-me) - [**Square Appointments** Open](https://hypamoon.com/connect-to/square-appointments) - [**SuperSaaS** Possible](https://hypamoon.com/connect-to/supersaas) - [**Google Calendar** Open](https://hypamoon.com/connect-to/google-calendar) - [**iCloud Calendar** Closed](https://hypamoon.com/connect-to/icloud-calendar) - [**SavvyCal** Open](https://hypamoon.com/connect-to/savvycal) - [**Phorest** Possible](https://hypamoon.com/connect-to/phorest) - [**Timely** Closed](https://hypamoon.com/connect-to/timely-salon) - [**Fresha** Closed](https://hypamoon.com/connect-to/fresha) - [**Vagaro** Possible](https://hypamoon.com/connect-to/vagaro) - [**Zenoti** Open](https://hypamoon.com/connect-to/zenoti) - [**Treatwell** Closed](https://hypamoon.com/connect-to/treatwell) - [**Booksy** Unknown](https://hypamoon.com/connect-to/booksy) - [**Doctolib** Unknown](https://hypamoon.com/connect-to/doctolib) - [**Setmore** Possible](https://hypamoon.com/connect-to/setmore) [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 Boulevard? 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=boulevard) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~boulevard#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~boulevard#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)