Have ChatGPT let in deliveries, guests, pet sitters, and more at your apartment or condoIntegrate with your building's buzzer in minutes, no installation required
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buzzerapi answers your buzzer on your behalf so you don't have to answer buzzer calls.
When your agent orders delivery or books a visit, it can let them in with buzzerapi automatically.
Your visitor dials your unit from the buzzer, either with your unit code or the buzzer directory.
If a passcode is set by BuzzerAPI, they enter the code when prompted.
buzzerapi opens the door on your behalf. Your agent sees every entry in your access log and lets you know they've arrived.
Let your AI agent manage access for deliveries, guests, and regular visitors.
Open a timed access window for a package or food delivery. When the driver dials your unit during that window, they’re buzzed in.
Schedule weekly access windows for regular visitors. Review and revoke them when plans change.
Create a four-digit code with an expiry and use limit for a guest or booking. Guests dial your unit, then enter the code when prompted.
Have your AI agent, app, or home automation platform create passcodes, schedule access, check logs, and receive signed webhooks with a scoped API key.
Review recorded buzzer events and access attempts with timestamps.
Get push notifications when someone buzzes, and view your access history in the Lowkey companion app.
Manage multiple call boxes from one account, each with its own virtual number.
buzzerapi provides you a virtual phone number which will interface securely with your existing buzzer system.
Purchase a buzzerapi subscription to receive a virtual number
Send the virtual number to your property manager to have the buzzer dial this number rather than your personal phone
Once the buzzer is configured, have your AI agent use buzzerapi to control your building door
Create an account and give your AI agent a free API key. A paid subscription is required to receive a virtual phone number to connect to your buzzer.
Allow your AI agent to let in packages, food deliveries, guests, pet sitters, and more
$2 / week billed annually (save 50%)or$4 / week
Billing starts only when you choose to connect a building.
You are already signed in. Create a new key for your AI agent or manage your account.
Manage account →
Copy this key now. It is shown once and never expires unless you revoke it. Only share it with an AI agent you trust.
The prompt contains your API key. It can create a checkout link, but payment stays with you. Live buzzer access needs an active subscription and building setup.
Manage account →Need to manage multiple buildings? Learn more in the full API Reference
See the requests behind common visitor access flows, or browse the complete REST reference for every operation.
A guest calls your unit and enters a 4 digit code when prompted.
curl -X POST https://api.buzzerapi.com/v1/buildings/BUILDING_ID/unlock \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Idempotency-Key: guest-passcode-001" \
-H "Content-Type: application/json" \
-d '{"type":"passcode","enabled":true,"access_code":"2580","expires_in_minutes":60,"remaining_uses":1,"label":"Guest"}'A timer lets a visitor in during a predetermined window when they call your unit. Set starts_at and ends_at to the delivery window, here 1 to 3 PM.
curl -X POST https://api.buzzerapi.com/v1/buildings/BUILDING_ID/unlock \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Idempotency-Key: delivery-window-001" \
-H "Content-Type: application/json" \
-d '{"type":"timer","enabled":true,"starts_at":"YYYY-MM-DDT13:00:00-07:00","ends_at":"YYYY-MM-DDT15:00:00-07:00","label":"Package delivery"}'Give a cleaner or dog walker a recurring access window. Add an optional access_code so callers must enter it during the window.
curl -X POST https://api.buzzerapi.com/v1/buildings/BUILDING_ID/unlock \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Idempotency-Key: weekly-cleaner-001" \
-H "Content-Type: application/json" \
-d '{"type":"routine","enabled":true,"days":["monday","tuesday","wednesday","thursday","friday"],"start_hour_and_minutes":"09:00","end_hour_and_minutes":"17:00","timezone":"America/Los_Angeles","access_code":"2468","label":"Cleaner"}'Search recent access attempts by name with q and see whether each one succeeded. Use the returned pagination cursor to fetch older activity.
curl "https://api.buzzerapi.com/v1/buildings/BUILDING_ID/logs?q=delivery&limit=20" \ -H "Authorization: Bearer YOUR_API_KEY"
Use a ChatGPT workflow with an authenticated API tool to connect the visitor plans you discuss to your building entrance. A regular chat alone cannot make these requests; configure the tool and store its credentials before asking it to manage access. Copy the setup prompt below to get started.
Try asking ChatGPT: ChatGPT, help me set a short entry window for a delivery to my apartment. Confirm the building and arrival window with me before enabling it.
ChatGPT, help me set up BuzzerAPI to let authorized visitors into my apartment or condo through a call box that dials a phone number.
Use the official AI agent guide at https://www.buzzerapi.com/agents.md and REST reference at https://www.buzzerapi.com/api-reference. Start at https://www.buzzerapi.com/chatgpt/#pricing so I can create a free account and verify my email myself. I will give you the API key after it is issued. Keep it in protected credentials as BUZZER_API_KEY; never print it, put it in a URL, or commit it.
First, check https://api.buzzerapi.com/v1/health, then use the key to inspect GET /v1/account and GET /v1/billing/plans. Tell me what I can test without paying. If the public API is unavailable, tell me plainly and use the website account page to check readiness. Do not invent results.
Only when I ask to connect a building, request hosted checkout for the plan I choose and return its URL for me to complete payment. Verify an active subscription and provisioned number before guiding me through building-manager setup and a physical entrance test. Ask before creating any access rule.
When I am ready to ask my property manager to have my unit's buzzer call the virtual number, draft this email for me. Replace VIRTUAL_NUMBER with the building's virtual_number from GET /v1/buildings/{buildingId}/setup, written as a normal phone number. Show me the draft to send myself; do not send it unless I ask.
Subject: RE: Changing my buzzer number
Hi,
Would you please change the phone number for my buzzer to VIRTUAL_NUMBER?
Thank you!