usefulapiBoulevard MCP server
Look up appointments, clients, services, staff and orders, and update clients in Boulevard. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
What can I ask?
Turn on the Boulevard connector, then ask in plain words. The AI picks the tools.
- What appointments do we have tomorrow at our downtown location?
- List client memberships with their status and next payment date.
- Show me last week's checkout orders and the totals.
- Add a note to Jane Smith's profile that she prefers the 10am chair.
What you can do with Boulevard in Claude and ChatGPT
For salon, spa and wellness business owners and managers who run appointments and clients in Boulevard.
Look at appointments at a location
The AI lists appointments at a location, filtered by client, date range or staff member. Each one shows its client, services, staff and state.
Check staff shifts and blocked time
The AI lists staff working shifts for a date range, and the blocked time such as breaks and meetings. You see who works when.
Review checkout orders and totals
The AI lists checkout orders at a location with subtotal, discount, tax, gratuity, total and refunds, and opens one with its line items. You can sum up a week.
Check memberships and their next charge
The AI lists client memberships with status, price, interval and next charge date. You can find paused or past-due ones.
Find, create or update a client, or add a note
The AI finds a client by email, phone or name, creates a new client, updates their details or adds an internal note. It can check for a duplicate first.
Changes dataHow do I connect Boulevard?
Before you connect
The login page asks for your Client ID, Client secret and Business ID.
Optional: Boulevard environment.
Create an offline (machine-to-machine) app in the Boulevard Developer Portal and install it on your business. The portal shows the app's client ID and client secret (copy the secret as shown — it is already Base64); the business ID is the UUID of the business the app is installed on (a urn:blvd:Business:… id works too).
Claude claude.ai · Desktop
- Open Customize → Connectors, then click + Add → Add custom connector.
- Enter the name Boulevard and this URL, then click Add:https://
boulevard. usefulapi. io/ mcp - Claude opens the login page: enter your Client ID, Client secret and Business ID.
- In a chat, click + → Connectors and turn on Boulevard.
Team and Enterprise: an Owner adds the connector for the organization first.
ChatGPT chatgpt.com
- Open Plugins, click +, then Add custom MCP server.
- Enter the name Boulevard and this URL, choose OAuth as the authentication, confirm the warning and create it:https://
boulevard. usefulapi. io/ mcp - ChatGPT opens the login page: enter your Client ID, Client secret and Business ID.
- In Plugins, install Boulevard, then choose it in a chat.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Claude Code
Run this command, then run /mcp in Claude Code to log in:
Cursor
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"boulevard": {
"url": "https://boulevard.usefulapi.io/mcp"
}
}
} VS Code
Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"boulevard": {
"type": "http",
"url": "https://boulevard.usefulapi.io/mcp"
}
}
} Codex
Run these commands. The second one opens the login page:
Other clients
Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.
Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Client ID, Client secret and Business ID. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
Pricing
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper user | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per user | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this Boulevard server only. Ask your AI to run boulevard_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with boulevard_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with boulevard_upgrade before then undoes the cancel. Or write to support@usefulapi.io.
Tools 25
Show all 25 tools (the AI picks them for you)
Read only · 15
- Get the business
boulevard_get_businessFetch the Boulevard business the credentials act for — name, timezone, address, phone, website. A cheap way to confirm the setup works. GraphQL: business. - List locations
boulevard_list_locationsList the business's locations with id, name, timezone and address. Most other tools need a location id from here. GraphQL: locations. - List appointments
boulevard_list_appointmentsList appointments at one location, optionally for one client and filtered by a query such as a date range or staff member. Each appointment includes its client, services, staff, state and cancellation. GraphQL: appointments. - Get one appointment
boulevard_get_appointmentFetch one appointment by id — time, state, notes, client, each booked service with its staff and price (in cents), cancellation details and tags. GraphQL: appointment. - List or search clients
boulevard_list_clientsList the business's clients, or find them by email, id list, or a query (e.g. name = 'Jane Doe', mobilePhone = '+15551234567'). GraphQL: clients. - Get one client
boulevard_get_clientFetch one client by id, including contact details, appointment count, account balance (cents), scheduling alert, tags and notes. GraphQL: client. - List services
boulevard_list_servicesList the service menu — name, category, default duration (minutes) and default price (cents), and whether it is an add-on. GraphQL: services. - List staff
boulevard_list_staffList staff members with their role, locations, contact details and whether they are bookable online, optionally filtered by a query. GraphQL: staff. - List staff shifts
boulevard_list_shiftsList staff working shifts at one location for a date range — clock-in/out times, weekday, availability and recurrence. GraphQL: shifts. - List timeblocks
boulevard_list_timeblocksList blocked time on staff calendars at one location (breaks, meetings, personal time). GraphQL: timeblocks. - List orders
boulevard_list_ordersList checkout orders at one location with totals (cents: subtotal, discount, tax, gratuity, total, refunds), optionally filtered e.g. by closedAt range or clientId. GraphQL: orders. - Get one order
boulevard_get_orderFetch one order by id with its totals and line items (services, products, gratuity, gift cards), amounts in cents. GraphQL: order. - List products
boulevard_list_productsList retail products — brand, SKU, barcode, unit price and cost (cents), category. Set include_inactive to include retired products. GraphQL: products. - List memberships
boulevard_list_membershipsList client memberships sold by the business — status (ACTIVE, PAUSED, PAST_DUE, CANCELLED), client, price (cents), interval, term and next charge date. GraphQL: memberships. - List tags
boulevard_list_tagsList the tags defined for the business (ids to use with boulevard_add_tag). GraphQL: tags.
Changes data · 6
- Create a client
boulevard_create_clientCreate a new client profile. Check boulevard_list_clients by email or phone first to avoid a duplicate. GraphQL: createClient. - Update a client
boulevard_update_clientChange a client's name, email, mobile phone, date of birth, pronoun or external id. Only the fields you pass change. GraphQL: updateClient. - Add a client note
boulevard_create_client_noteAdd an internal note to a client's profile (visible to staff, e.g. formulas, preferences, allergies). GraphQL: createClientNote. - Update an appointment
boulevard_update_appointmentReplace an appointment's internal notes and/or move its state to BOOKED, CONFIRMED, ARRIVED or ACTIVE (e.g. confirm, or check the client in). Does not cancel or reschedule. GraphQL: updateAppointment. - Block staff time
boulevard_create_timeblockBlock time on one staff member's calendar at a location (a break, meeting or personal time) so it cannot be booked. One-off only. GraphQL: createTimeblock. - Apply a tag
boulevard_add_tagApply an existing tag (from boulevard_list_tags) to a taggable record such as a client or appointment. GraphQL: addTag.
Your usefulapi plan · 4
- Usage status (free-tier meter)
boulevard_usage_statusReport the caller's current usage: the plan, calls used this month, the limit of the plan (the free monthly cap or the Pro fair use limit), remaining, and whether the limit is reached. Read-only; does not count against the meter. - Request a missing feature
boulevard_request_featureTell usefulapi that the user needs something the Boulevard tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter. - Upgrade to Pro or Pro+
boulevard_upgradeGet a paid plan for Boulevard (the free tier caps monthly usage). Pro: 10,000 tool calls a month, for normal use — plan "monthly" ($9/month) or "yearly" ($90/year, 2 months free). Pro+: 100,000 tool calls a month, for automations and heavy use — plan "plus" ($39/month) or "plus_yearly" ($390/year). Without a plan it returns both Pro and Pro+, each with a payment link, for the user to choose; with a plan, one link. An existing Pro subscription changes to Pro+ in place: call without confirm first, as the reply states the exact charge for this account (the price difference for the rest of the period, or in a free Pro trial the full Pro+ price, as the trial ends); then call with confirm: true. Cancel any time: the plan then runs to the end of the paid period, so it also suits a one-time job. A link opens Stripe Checkout in the browser; after payment the account upgrades automatically. Does not count against the meter. - Cancel the Pro subscription
boulevard_cancel_subscriptionCancel the caller's Boulevard Pro subscription at the end of the paid period (no refund for the current period; Pro continues until then, then the free tier applies). Requires confirm: true. Run boulevard_upgrade later to undo the cancel before the period ends. Does not count against the meter.
FAQ
What can I do with Boulevard in Claude or ChatGPT?
Look at appointments at a location. Check staff shifts and blocked time. Review checkout orders and totals. Check memberships and their next charge. Find, create or update a client, or add a note. See what you can do for the details.
Is this an official Boulevard product?
No. usefulapi is an independent service. It is not affiliated with or endorsed by Boulevard. The server calls the Boulevard API with your own Boulevard access, so it sees only the data that your account can see.
Can I connect Boulevard to Claude or ChatGPT?
Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.
What do I need to connect?
The login page asks for your Client ID, Client secret and Business ID. See Before you connect for where to find them.
Do I put my Boulevard key or an Authorization header in the client config?
No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Client ID, Client secret and Business ID. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
How do you keep my Boulevard credentials?
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Boulevard API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in Boulevard.
Can the AI change my Boulevard data?
Yes, if you approve it. 6 of the 21 Boulevard tools can create or change data. The other 15 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.
What does it cost?
The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this Boulevard server only. Cancel any time: your paid plan then runs to the end of the paid period. Run boulevard_usage_status to see how many calls you used.
How do I subscribe or cancel?
Ask the AI to run boulevard_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run boulevard_cancel_subscription. Your paid plan continues to the end of the paid period.
What if a Boulevard tool that I need is missing?
Tell the AI what you wanted to do. It can send the request with boulevard_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Which AI clients can I use?
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.
This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.
Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.