GETTING STARTED WITH FEEDHAMMER
Feedhammer turns your scattered Basecamp calendars into one unified feed. Here are the main steps:
In Basecamp, open the project you want to add. Click the Schedule tool. That's where events and assignments live.
Once inside the Schedule tool, click Subscribe to this calendar. You'll find it in the three-dot menu at the top right of the page.
Click Google Calendar, then click Copy link. Always select Google Calendar here, even if your actual calendar app is something else.
Paste this URL into Notepad or a text editor. You'll need it when setting up a feed group in Feedhammer.
Repeat this for every Basecamp project you want in your unified calendar. You only need to do this once per project. You can mix projects from different clients or different Basecamp workspaces. Feedhammer works across all of them.
By the end, your Notepad will have all the iCal URLs you need to set up your Feedhammer groups.
In Feedhammer, a feed group is a collection of Basecamp feeds merged into one calendar. You can create as many groups as you need as per your subscription plan. For example, if you have 10 Basecamp projects for one client, add all their iCal URLs to a single feed group. That gives you one unified URL to subscribe to or share.
On your Feedhammer dashboard, click + Create New Feed Group. Give it a clear name like "Client X Projects" or "Internal Team".
In your new group, paste the Basecamp iCal URLs from your Notepad into the Add Feed field, one at a time. Feedhammer validates each URL and auto-detects the project name.
Add as many Basecamp feeds as you want to this group. There is no limit on feeds per group. The dashboard shows the first 5 feeds by default. Click + X MORE to see all of them.
Use the checkboxes in your feed group card to control what shows up in your calendar:
At the top of each feed group card, you'll find a unique Feed URL. Anyone can subscribe to it using a calendar app. Here's how for the most common platforms:
A feed is one Basecamp iCal URL copied from its Basecamp project's Schedule tool. A feed group is a collection of such feeds merged into one feed group in Feedhammer. All feeds in a single feed group are aggregated and made available through a single Feed Group URL. You add this unique URL to a calendar app, not individual Basecamp feeds. A feed group can contain any number of Basecamp feed URLs.
Each feed and feed group show a colored status dot:
This shows when your calendar app last requested an update from Feedhammer. Feedhammer does not continuously poll Basecamp. It fetches fresh data only when your calendar asks for it.
Anyone with your feed group URL can see the unified calendar. Share it with clients, teammates, or stakeholders. There's no per-person limit. Each person subscribes independently in their own calendar app.
Browse our detailed guides about Basecamp calendar sharing, organized by topic.
Basecamp gives you one calendar feed per project. Feedhammer joins them into one link your clients can put in Google Calendar, Apple Calendar, or Outlook.
June 17, 2026 How to put all your Basecamp projects into one calendarPaste every Basecamp project's calendar link into one Feedhammer group, then subscribe one calendar app to the group's single, clean, shared feed.
A practical look at why Zapier and Make cannot do what Feedhammer does for sharing one Basecamp calendar with your clients.
June 17, 2026 Feedhammer vs subscribing to Basecamp feeds directlySubscribing to Basecamp feeds one by one works, but it leaks your internal items to clients. Feedhammer adds a clean layer on top.
