How do I install the Google Calendar skill?

Run npx skillmds@latest add demerzels-lab/google-calendar in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Google Calendar safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Google Calendar?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Google Calendar free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Google Calendar?

Demerzels-lab (@demerzels-lab) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Google Calendar by demerzels-lab — Agent Skill

Name: Google Calendar
Author: Demerzels-lab

Google Calendar

Interact with Google Calendar via the Google Calendar API – list upcoming events, create new events, update or delete them. Use this skill when you need programmatic access to your calendar from OpenClaw.

Demerzels-lab Updated Sep 17, 2026 10 repo stars

File contents

Google Calendar Skill

Overview

This skill provides a thin wrapper around the Google Calendar REST API. It lets you:

list upcoming events (optionally filtered by time range or query)
add a new event with title, start/end time, description, location, and attendees
update an existing event by its ID
delete an event by its ID

The skill is implemented in Python (scripts/google_calendar.py). It expects the following environment variables to be set (you can store them securely with openclaw secret set):

GOOGLE_CLIENT_ID=…
GOOGLE_CLIENT_SECRET=…
GOOGLE_REFRESH_TOKEN=…   # obtained after OAuth consent
GOOGLE_CALENDAR_ID=primary   # or the ID of a specific calendar

The first time you run the skill you may need to perform an OAuth flow to obtain a refresh token – see the Setup section below.

Commands

google-calendar list [--from <ISO> --to <ISO> --max <N>]
google-calendar add   --title <title> [--start <ISO> --end <ISO>]
                     [--desc <description> --location <loc> --attendees <email1,email2>]
google-calendar update --event-id <id> [--title <title> ... other fields]
google-calendar delete --event-id <id>

All commands return a JSON payload printed to stdout. Errors are printed to stderr and cause a non‑zero exit code.

Setup

Create a Google Cloud project and enable the Google Calendar API.
Create OAuth credentials (type Desktop app). Note the client_id and client_secret.
Run the helper script to obtain a refresh token:
```
GOOGLE_CLIENT_ID=… GOOGLE_CLIENT_SECRET=… python3 -m google_calendar.auth
```
It will open a browser (or print a URL you can open elsewhere) and ask you to grant access. After you approve, copy the refresh_token it prints.

Store the credentials securely:

openclaw secret set GOOGLE_CLIENT_ID <value>
openclaw secret set GOOGLE_CLIENT_SECRET <value>
openclaw secret set GOOGLE_REFRESH_TOKEN <value>
openclaw secret set GOOGLE_CALENDAR_ID primary   # optional

Install the required Python packages (once):

pip install --user google-auth google-auth-oauthlib google-api-python-client

How it works (brief)

The script loads the credentials from the environment, refreshes the access token using the refresh token, builds a service = build('calendar', 'v3', credentials=creds), and then calls the appropriate API method.

References

Google Calendar API reference: https://developers.google.com/calendar/api/v3/reference
OAuth 2.0 for installed apps: https://developers.google.com/identity/protocols/oauth2/native-app

Note: This skill does not require a GUI; it works entirely via HTTP calls, so it is suitable for headless servers.

---name: google-calendardescription: Interact with Google Calendar via the Google Calendar API – list upcoming events, create new events, update or delete them. Use this skill when you need programmatic access to your calendar from OpenClaw.---# Google Calendar Skill## OverviewThis skill provides a thin wrapper around the Google Calendar REST API. It lets you:- **list** upcoming events (optionally filtered by time range or query)- **add** a new event with title, start/end time, description, location, and attendees- **update** an existing event by its ID- **delete** an event by its IDThe skill is implemented in Python (`scripts/google_calendar.py`). It expects the following environment variables to be set (you can store them securely with `openclaw secret set`):```GOOGLE_CLIENT_ID=…GOOGLE_CLIENT_SECRET=…GOOGLE_REFRESH_TOKEN=… # obtained after OAuth consentGOOGLE_CALENDAR_ID=primary # or the ID of a specific calendar```The first time you run the skill you may need to perform an OAuth flow to obtain a refresh token – see the **Setup** section below.## Commands```google-calendar list [--from <ISO> --to <ISO> --max <N>]google-calendar add --title <title> [--start <ISO> --end <ISO>] [--desc <description> --location <loc> --attendees <email1,email2>]google-calendar update --event-id <id> [--title <title> ... other fields]google-calendar delete --event-id <id>```All commands return a JSON payload printed to stdout. Errors are printed to stderr and cause a non‑zero exit code.## Setup1. **Create a Google Cloud project** and enable the *Google Calendar API*.2. **Create OAuth credentials** (type *Desktop app*). Note the `client_id` and `client_secret`.3. Run the helper script to obtain a refresh token: ```bash GOOGLE_CLIENT_ID=… GOOGLE_CLIENT_SECRET=… python3 -m google_calendar.auth ``` It will open a browser (or print a URL you can open elsewhere) and ask you to grant access. After you approve, copy the `refresh_token` it prints.4. Store the credentials securely: ```bash openclaw secret set GOOGLE_CLIENT_ID <value> openclaw secret set GOOGLE_CLIENT_SECRET <value> openclaw secret set GOOGLE_REFRESH_TOKEN <value> openclaw secret set GOOGLE_CALENDAR_ID primary # optional ```5. Install the required Python packages (once): ```bash pip install --user google-auth google-auth-oauthlib google-api-python-client ```## How it works (brief)The script loads the credentials from the environment, refreshes the access token using the refresh token, builds a `service = build('calendar', 'v3', credentials=creds)`, and then calls the appropriate API method.## References- Google Calendar API reference: https://developers.google.com/calendar/api/v3/reference- OAuth 2.0 for installed apps: https://developers.google.com/identity/protocols/oauth2/native-app---**Note:** This skill does not require a GUI; it works entirely via HTTP calls, so it is suitable for headless servers.

Frequently asked questions