Scheduling infrastructure for absolutely everyone.
$ npx -y skills add calcom/cal.diy --agent claude-code
Repo: calcom/cal.com
What's inside
[!WARNING]
Use at your own risk. Cal.diy is the open source community edition of Cal.com and it is intended for users who want to self-host their own Cal.diy instance. It is strictly recommended for personal, non-production use. Please review all installation and configuration steps carefully. Self-hosting requires advanced knowledge of server administration, database management, and securing sensitive data. Proceed only if you are comfortable with these responsibilities.
[!TIP] For any commercial and enterprise-ready scheduling infrastructure, use Cal.com, not Cal.diy; hosted by us or get invited to on-prem enterprise access here: https://cal.com/sales
Cal.diy is the community-driven, fully open-source scheduling platform — a fork of Cal.com with all enterprise/commercial code removed.
Cal.diy is 100% MIT-licensed with no proprietary "Enterprise Edition" features. It's designed for individuals and self-hosters who want full control over their scheduling infrastructure without any commercial dependencies.
Note: Cal.diy is a self-hosted project. There is no hosted/managed version. You run it on your own infrastructure.
To get a local copy up and running, please follow these simple steps.
Here’s what you need to run Cal.diy.
If you want to enable any of the available integrations, you may want to obtain additional credentials for each one. More details on this can be found below under the integrations section.
Clone the repo (or fork https://github.com/calcom/cal.diy/fork)
git clone https://github.com/calcom/cal.diy.git
If you are on Windows, run the following command in Git Bash with admin privileges:
git clone -c core.symlinks=true https://github.com/calcom/cal.diy.git
Go to the project folder
cd cal.diy
Install packages with yarn
yarn
Set up your .env file
.env.example to .envopenssl rand -base64 32 to generate a key and add it under NEXTAUTH_SECRET in the .env file.openssl rand -base64 24 to generate a key and add it under CALENDSO_ENCRYPTION_KEY in the .env file.Windows users: Replace the
packages/prisma/.envsymlink with a real copy to avoid a Prisma error (unexpected character / in variable name):# Git Bash / WSL rm packages/prisma/.env && cp .env packages/prisma/.env
Set up Node If your Node version does not meet the project's requirements as instructed by the docs, "nvm" (Node Version Manager) allows using Node at the version required by the project:
nvm use
You first might need to install the specific version and then use it:
nvm install && nvm use
You can install nvm from here.
yarn dx
- Requires Docker and Docker Compose to be installed
- Will start a local Postgres instance with a few test users - the credentials will be logged in the console
yarn dx
Default credentials created:
| Password | Role | |
|---|---|---|
free@example.com | free | Free user |
pro@example.com | pro | Pro user |
trial@example.com | trial | Trial user |
admin@example.com | ADMINadmin2022! | Admin user |
onboarding@example.com | onboarding | Onboarding incomplete |
You can use any of these credentials to sign in at http://localhost:3000
Tip: To view the full list of seeded users and their details, run
yarn db-studioand visit http://localhost:5555
Add export NODE_OPTIONS="--max-old-space-size=16384" to your shell script to increase the memory limit for the node process. Alternatively, you can run this in your terminal before running the app. Replace 16384 with the amount of RAM you want to allocate to the node process.
Add NEXT_PUBLIC_LOGGER_LEVEL={level} to your .env file to control the logging verbosity for all tRPC queries and mutations.
Where {level} can be one of the following:
0 for silly
1 for trace
2 for debug
3 for info
4 for warn
5 for error
6 for fatal
When you set NEXT_PUBLIC_LOGGER_LEVEL={level} in your .env file, it enables logging at that level and higher. Here's how it works:
The logger will include all logs that are at the specified level or higher. For example: \
NEXT_PUBLIC_LOGGER_LEVEL=2, it will log from level 2 (debug) upwards, meaning levels 2 (debug), 3 (info), 4 (warn), 5 (error), and 6 (fatal) will be logged. \NEXT_PUBLIC_LOGGER_LEVEL=3, it will log from level 3 (info) upwards, meaning levels 3 (info), 4 (warn), 5 (error), and 6 (fatal) will be logged, but level 2 (debug) and level 1 (trace) will be ignored. \echo 'NEXT_PUBLIC_LOGGER_LEVEL=3' >> .env
for Logger level to be set at info, for example.
Click the button below to open this project in Gitpod.
This will open a fully configured workspace in your browser with all the necessary dependencies already installed.
Configure environment variables in the .env file. Replace <user>, <pass>, <db-host>, and <db-port> with their applicable values
DATABASE_URL='postgresql://<user>:<pass>@<db-host>:<db-port>'
Download and install PostgreSQL locally (if you don't have it already).
Create your own local db by executing createDB <DB name>
Now open your psql shell with the DB you created: psql -h localhost -U postgres -d <DB name>
Inside the psql shell execute \conninfo. And you will get the following info.

Now extract all the info and add it to your DATABASE_URL. The url would look something like this
postgresql://postgres:postgres@localhost:5432/Your-DB-Name. The port is configurable and does not have to be 5432.
If you don't want to create a local DB. Then you can also consider using services like railway.app, Northflank or render.
Copy and paste your DATABASE_URL from .env to .env.appStore.
Set up the database using the Prisma schema (found in packages/prisma/schema.prisma)
In a development environment, run:
yarn workspace @calcom/prisma db-migrate
In a production environment, run:
yarn workspace @calcom/prisma db-deploy
Note for Windows/PowerShell users: If running the database deployment scripts fails with an error stating Environment variable not found: DATABASE_DIRECT_URL, Turbo might be failing to inject the root .env variables. You can bypass this by executing the commands directly from the prisma package directory in PowerShell:
cd packages/prisma
$env:DATABASE_URL="postgresql://postgres:YOUR_PASSWORD@localhost:5432/postgres"; $env:DATABASE_DIRECT_URL="postgresql://postgres:YOUR_PASSWORD@localhost:5432/postgres"
npx prisma db push
cd ../..
Run mailhog to view emails sent during development
NOTE: Required when
E2E_TEST_MAILHOG_ENABLEDis "1"
docker pull mailhog/mailhog
docker run -d -p 8025:8025 -p 1025:1025 mailhog/mailhog
Run (in development mode)
yarn dev
Open Prisma Studio to look at or modify the database content:
yarn db-studio
Click on the User model to add a new user record.
Fill out the fields email, username, password, and set metadata to empty {} (remembering to encrypt your password with BCrypt) and click Save 1 Record to create your first user.
New users are set on a
TRIALplan by default. You might want to adjust this behavior to your needs in thepackages/prisma/schema.prismafile.
Open a browser to http://localhost:3000 and login with your just created, first user.
Seed the local db by running
cd packages/prisma
yarn db-seed
The above command will populate the local db with dummy users.
Be sure to set the environment variable NEXTAUTH_URL to the correct value. If you are running locally, as the documentation within .env.example mentions, the value should be http://localhost:3000.
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FAQ
caldiy is a Claude Code plugin with 3 hand-picked skills for ai & agents work, indexed on Flowy. Install it with the command on its page. It includes calcom-api, vercel-react-best-practices, web-design-guidelines. Its skills do not fire on their own yet. Request auto-invocation to have Flowy route them as you prompt. Free and open source.
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