Skip to main content

Developer Community

Looking to use Calendly's API or build integrations? Developer Community is here to help.

265 Topics
K
K78647Community Member
asked in API + Webhook Help
Calendly event not added to GCal

I updated to Chrome browser v135.0.7049.42 today and a Calendly event came through before I had restarted Chrome. Calendly says my Google calendar is still connected, the event shows up in my Calendly meetings list, and I got the notification email but it does not appear on my calendar. There does not seem to be a way to re-send a calendar invite from the Calendly dash, or download an ics file so I guess I just have to manually create the event and it won’t be synced to Calendly? I am concerned this will be an ongoing issue in the latest Chrome update.

341
David
Community Manager
T
trunkey2003Community Member
asked in API + Webhook Help
Calendly Embedding: Delayed Load

The embedded Calendly didn’t load until I scrolled it into view, which is bad for my user experience, even though I loaded the script right when the landing page was visited. I visited Calendly embed demo sites and it seems that they have the same behavior.How can I prevent the loading experience ?

580
T
M
MartinQuijanoCommunity Member
asked in API + Webhook Help
Problem with List Event Type Aveilable Times

Hi. Im using the List Event Type Available Times endpoint, and sometimes I get the “Not enough team members for this event type” error mesage. The whole error looks like this:{    "title": "Invalid Argument",    "message": "The supplied parameters are invalid.",    "details": [        {            "parameter": "event_type",            "message": "Not enough team members for this event type."        }    ]}Anyone had the same problem?

380
M
A
Audrey16782Community Member
asked in API + Webhook Help
react-calendly's InlineWidget won't customize colors

Hello,I’ve been trying to update the module's colors so it fits my website’s theme with no success so far.import { InlineWidget } from 'react-calendly';const MyComponent = () => <InlineWidget url="{{MY_URL}}" pageSettings={{ backgroundColor: "0A0B12" primaryColor: "007AFF"​ textColor: "FFFFFF" }} />; For the record, I’ve tried with and without the # in front of the hex code as well as with lowercase hex codes. I don't see any error whatsoever but it keeps the original colors as if nothing happened.Also, other page settings to hide details don't seem to change anything either. Am I doing it the right way?Maybe the NPM documentation is outdated.

240
A
T
ThomasHagueCommunity Member
asked in API + Webhook Help
Calendly not Loading on Website on Mobiles (Apple, Samsung)

The calendly booking page doesn’t load on my website- www.thebreathcoach.co.uk The calendly integration loads on some mobiles but not others. Has anyone come across this before or have any ideas for a simple fix?This is my consultation booking page, and it’s where all my work comes in—so getting it working across all devices is important.Any advice would be much appreciated.Thanks,Thomas

240
T
L
luca46468Community Member
asked in API + Webhook Help
probleme d affichage sur mon site

Bonjour j ai un probleme d affichage calendly sur mon site www.reflex-harmony.ch apres avoir choisi la date le curseur descend tout seul et je comprend pas voila la video d explication :  

130
L
H
Hossam12408Community Member
asked in API + Webhook Help
Help plz with website code

i want to ask question why when i insert the code in my website in the first image look like this and how to make look like the second one  

170
H
Y
Yeabsera27512Community Member
asked in API + Webhook Help
Getting "Invalid Argument" Error When Using List User Availability Schedules API

Hello,I'm currently working on integrating Calendly into my application, and I'm encountering an issue when trying to fetch availability schedules using the "List User Availability Schedules" API. Whenever I make the request, I get the following error message:{ "title": "Invalid Argument", "message": "The supplied parameters are invalid.", "details": [ { "parameter": "string", "message": "string", "code": "string" } ]}Thank you in advance for your help!

1728
K
G
gb82102Community Member
posted in API + Webhook Help
Trouble Creating an Event via Calendly API – Need Help!

 Hello everyone,I'm trying to create an event (a meeting) through the Calendly API, following the official documentation. However, when I send a request to https://api.calendly.com/scheduled_events/, I keep getting a 404 error.Here’s what I’ve checked so far:✅ Using a POST request with the required payload✅ Ensuring my authentication token is correct✅ Double-checking the API URL and version✅ Tried testing with https://api.calendly.com/users/me (authentication works fine)Has anyone else faced this issue? Any suggestions on what might be missing or how to fix it? Would appreciate any insights!Thanks in advance! 

260
G
H
hectormxnCommunity Member
posted in API + Webhook Help
scheduled events from API

We are trying to create an event (a meeting) through the API but when doing it as in its documentation it sends me a 404 errorhttps://api.calendly.com/scheduled_events/ Does anyone know how to achieve this?

3507
G
K
Kwami32715Community Member
asked in API + Webhook Help
An error has occurred The requested scope is invalid, unknown, or malformed.

Trying Outh to PHP platform though Calendly APIAfter enter my gmail and pw and then get the gmail account notification, it redirect me to :https://calendly.com/oauth/authorize?client_id=rfk868EyM50ys6nNAlvG29AEc0iI-vD5ArhF2k4XH4E&response_type=code&redirect_uri=https://zix-technologie.com/zix-calendar/sirine993-synchronisation/calendly_callback.php&scope=users:read%20events:read%20event_types:read%20scheduling_links:readwith the error My auth_calendly.php looks like this :<?php session_start();require_once 'vendor/autoload.php';$dotenv = Dotenv\Dotenv::createImmutable(__DIR__);$dotenv->load();$authUrl = "https://auth.calendly.com/oauth/authorize?"    . "client_id=" . $_ENV['CALENDLY_CLIENT_ID']    . "&response_type=code"    . "&redirect_uri=" . urlencode($_ENV['CALENDLY_REDIRECT_URI'])    . "&scope=users:read event_types:read scheduling_links:read events:read";header('Location: ' . $authUrl);exit;?>

220
K
R
Rhys58266Community Member
asked in API + Webhook Help
Help requested - Retrieving UUID based on invitee information URL

Hi there Does anyone know how to retrieve a Calendly UUID, based on an invitee URL through Calendly’s APIs? For context, I am using the Typeform / Calendly integration with Make. The URL captured in Typeform doesn’t appear to include UUID information.  Any help will be appreciated! ThanksRhys   

220
R
J
Josh00456Community Member
posted in API + Webhook Help
Request: API Endpoint to Schedule Events Directly

I’m reaching out to request a critical feature for Calendly’s API: an endpoint to schedule events programmatically without requiring invitees to select a time slot via a scheduling link. This capability is essential for my business, and I believe it would benefit many other developers in the community as well. The ProblemMy team is building AI solutions in a highly competitive industry where scheduling needs to be seamless and immediate—often over the phone or through automated workflows. Currently, Calendly’s API (as of March 2025) allows us to fetch availability and event details, but there’s no way to directly schedule an event. Instead, we’re forced to send a scheduling link or direct clients to a website to book, which isn’t feasible for our use case. This limitation creates friction:Clients expect instant scheduling during live interactions (e.g., phone calls to our Voice AI agent or via SMS chat with our AI agent). Sending a link or requiring a website visit adds unnecessary ste

611
A
Employee
H
hehub000Community Member
asked in API + Webhook Help
How can I get start and end time info from an embedded booking page to my parent website?

I use Calendly to manage availability and event booking for my website, and users provide their Calendly embedded booking page URL when they sign up so other users can directly schedule meetings with them. However, my website has it’s own calendar that I want to sync with each user’s Calendly calendar. In order to do this, I just need the start and end times of events that users schedule with each other using Calendly.I need some way to get the start and end time of events when they are booked from the embedded page to my parent website. Embedded pages send a notification to the parent window when an event is scheduled, but the payload only contains the event URI and not the fields I need.I also tried making a GET request to the Calendly API every time an event is scheduled based on the event URI, but the GET Event request only gives permission when the caller is the event owner, not an invitee.Has anyone found a way to do what I’ve described? I would appreciate any help. Thanks.

481
A
Employee
K
Kevin26381Community Member
posted in API + Webhook Help
Expose more fields than just `uri` for `calendly.event_scheduled`

Feature RequestThe https://developer.calendly.com/api-docs/2d6c9df9b89de-notifying-the-parent-window, and personal testing confirms that the only data available to the parent window when an event is scheduled  (calendly.event_scheduled) is the uri of the event and invitee. However, I see in the network tab that many fields are returned. Can you expose all, or some of these other fields? At least start_time, end_time, and uuid My Use CaseI would like to create my own “you are scheduled” page, because calendly is just one of the steps in my flow. I would like to show my users this ‘scheduled’ information alongside a few more “what’s next/what to expect”, my own styling for FAQ link, etc.

2953
H
L
Lior34306Community Member
asked in API + Webhook Help
Zoho Calendar Integration

Hello, Zoho is a 100 million users platform and there is no integration between Zoho Calendar and Calendly. Its a big calendar that suppose to have a representation in Calendly. I already talked to Zoho and if you are interested they will put the resources to assist with the integration.  Let me know,Lior

391
David
Community Manager
Y
Yeabsera27512Community Member
asked in API + Webhook Help
500 Internal Server Error – Create One-Off Event Type API

I am encountering a 500 Internal Server Error when attempting to create a one-off event type using the Calendly API. The response I receive is:{ "title": "Internal Server Error", "message": "The server encountered an unexpected condition that prevented it from fulfilling the request."}Here is the request payload and configuration I am using:const data = { name: "My Meeting", host: uri, co_hosts: [], duration: 30, date_setting: { type: "date_range", start_date: "2025-2-6", end_date: "2025-3-6", }, location: { kind: "physical", location: "Main Office", additional_info: "string", },};const options = { method: "POST", url: "https://api.calendly.com/one_off_event_types", headers: { "Content-Type": "application/json", Authorization: `Bearer ${accessToken}`, }, data,};Any guidance or clarification would be greatly appreciated. Thank you!

1542
Y
L
LudwiggCommunity Member
asked in API + Webhook Help
Is it possible to use this API (https://calendly.com/api/users/{user_id}/event_types) to create an event without needing to access Calendly?

So I realized that I can't create an event using the official Calendly API. But when I create an event on my user page I noticed that it calls another endpoint to create them. So, is it possible? How can I do this?

561
C
Employee
W
WeCraftly53034Community Member
posted in API + Webhook Help
API Feature Request: Time Range Availability Check & Appointment Creation

Wouldn’t it be great if the Calendly API allowed you to send a time range (a start time and an end time) and then receive a response indicating whether that time slot is available? I envision an API endpoint where you send a new appointment request with a specified start and end time, and Calendly returns:• Whether that time slot is available for scheduling, and• If available, the option to create a new meeting/appointment directly via the API. This feature would make it much easier to integrate Calendly into automated workflows and scheduling systems by allowing us to quickly check availability and then book appointments if the slot is free. Looking forward to feedback and discussions on this idea!

200
W
P
Paulus74625Community Member
asked in API + Webhook Help
event_type_available_times fails if start_time is in the past

The event_type_available_times endpoint fails if start_time is in the past. In fact if fails with an opaque 400 error:`The supplied parameters are invalid`It took me an hour to debug this non-obvious behavior.Can you please document this behavior in the api docs, return a meaningful error message in the api response, or preferably both?Thanks!

521
C
Employee
K
Kevin26381Community Member
asked in API + Webhook Help
Invalid Argument for "event_type_available_times" endpoint

curl --request GET \ --url 'https://api.calendly.com/event_type_available_times?event_type=https%3A%2F%2Fapi.calendly.com%2Fevent_types%2Fd9ceda1a-7a6e-4fa1-b0af-59c2df7c2387&start_time=2020-01-02T20%3A00%3A00.000000Z&end_time=2020-01-07T24%3A00%3A00.000000Z' \ --header "Authorization: Bearer $BEARER_TOKEN" \ --header 'Content-Type: application/json'What’s wrong with my request? I tried using the request-creator tool in the docs: https://developer.calendly.com/api-docs/6a1be82aef359-list-event-type-available-times, but in that UI or in curl, i get the same error: {"title":"Invalid Argument","message":"The supplied parameters are invalid."}For reference, I got this event_type uuid from a successful call to the  https://api.calendly.com/event_types endpoint.

1602
C
Employee
M
monikalyzwaCommunity Member
asked in API + Webhook Help
First available slot - how to fetch via API?

Hello!For number of days we are trying to fetch information about the first available slot for an event (API) to present on our website. Unfortunately, we are doing something wrong. Here’s a message from my developer: We have fetched all event_types from the user. We are trying to retrieve the schedule for a specific event.URI: https://api.calendly.com/event_types/1fd06bb2-983f-4847-9751-ebd631d21f7a | UID: 1fd06bb2-983f-4847-9751-ebd631d21f7aWe are attempting to do this using the following endpoint: https://developer.calendly.com/api-docs/6a1be82aef359-list-event-type-available-times Unfortunately, it doesn’t work, neither in the code nor via the link above.We are passing the following parameters: • end_time: 2025-02-13T01:00:00.000000Z • event_type: https://api.calendly.com/event_types/1fd06bb2-983f-4847-9751-ebd631d21f7a • start_time: 2025-02-20T01:00:00.000000ZWhat are we doing wrong? 

602
C
Employee
M
Minha23032Community Member
posted in API + Webhook Help
The specific issue (cookie settings panel in an embed)

I've disabled the cookie notification pop-up within the embedded content, but the cookie preferences section still appears to be visible. This is creating layout issues with the margins when the page responds to different screen sizes.Would it be possible to completely remove this cookie-related element from the embed? This would give us better control over the spacing and dimensions surrounding the embedded content.

150
M
JonT
JonTCommunity Member
asked in API + Webhook Help
Dark mode support for the embedded booking widget

We are trying to use the embedded booking widget on our website and it works well except when our site is in dark mode. I provide custom colours using the ?background_color=xxx&text_color=xxx&primary_color=xxx options. It works well but the generated iframe has a white background instead of being transparent. The generated Calendly iframe does support a transparent background colour but the generated iframe needs to have this added into the head section:<meta name="color-scheme" content="light dark">I found the fix here: https://stackoverflow.com/a/77604431/343If I manually add this tag using the browser inspector it works fine and the iframe has a transparent background again. Is it possible to have this tag added to the generated iframe so that we can have full dark mode support? Thanks!

18542
Thobani13115
R
Rachel55626Community Member
asked in API + Webhook Help
Marking Rescheduled Meetings as Rescheduled

​@Austin I’m finally working on implementing the process you outlined in this post:  But I’m running into one problem. My CancelEventTemplate that I copied from the installed package has this in the Subject line: {!$Record.Calendly__EventSubject__c} - Calendly - {!$Record.Calendly__InviteeUuid__c} There is no “Canceled” verbiage to update to “Rescheduled”. However, even though this flow is active without “Canceled” in the subject, my events in Salesforce are changing to Canceled. So I’m wondering if there is something else inside of Calendly that is putting “Canceled” in the subject line and passing it over?  I did try adding “Rescheduled” to my flow to see what would happen. I tested it out, and the rescheduled meeting in Salesforce ended up with the subject “Rescheduled: Canceled: Subject - Calendly - ID”. So I’m thinking there has to be something outside of the Flow that is setting the title to “Canceled”.  If I need to put in a ticket, I will, but I thought I’d start with you to se

542
R
Terms & ConditionsCookie Settings