Does it work with PostHog’s EU cloud or a self-hosted PostHog?

Yes. Enter the address as the host when you connect. It has to be a PostHog cloud address or one reachable over public HTTPS.

Why are the event counts given as “at least”?

One sync reads up to 100 events from the last 24 hours. When that page comes back full, each count is marked as a floor.

PostHog integration for Founder OS: what it reads and how to connect

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PostHog integration

The PostHog connector reads which events happened in your project in the last 24 hours and how many times each one did. Founder OS turns the most frequent events into facts it can cite when you ask what users are doing.

Connected tools are part of Founder OS, which is on Pro Plus. Idea validation is on every plan, including Free. See every tool Founder OS reads.

What Founder OS reads from PostHog

Event names
How many times each event happened in the last 24 hours
The start of the window each count covers

What it leaves alone:

Event properties
Who triggered an event: person ids are not kept
Session recordings, feature flags and experiments

How much each sync reads

The last 24 hours, up to 100 events per sync. In a busy project the counts are a floor, and they are labelled that way

A sync runs when you connect, once a day after that, and whenever you press Sync.

Where the records are used

Ask and the decision log: the five most frequent events, with the window they cover
Counts from a sync more than 48 hours old are dropped rather than shown as current

How to connect PostHog

Connect with a key you create:

In PostHog, create a personal API key.
Give it read access only, for the project you want to connect.
Copy the project ID from your project settings.

PostHog documents this kind of key in its own guide, and you connect your account under PostHog’s terms.

Access and security

A personal API key with read access to the one project you connect, and that project’s ID. PostHog’s EU cloud or a self-hosted address can be entered as the host.

Every request to a connected tool is checked on our server, and anything that is not a read is refused before it leaves. It cannot move money, send a message or change a record. Keys and tokens are encrypted with AES 256 in GCM mode before they are stored, are never shown again, and are kept out of our logs. Disconnecting deletes the key and every record imported from the tool, in one step. For a tool you approved, we also ask the tool to end our access. The security page sets out the rest.

Questions

Does it work with PostHog’s EU cloud or a self-hosted PostHog?: Yes. Enter the address as the host when you connect. It has to be a PostHog cloud address or one reachable over public HTTPS.
Why are the event counts given as “at least”?: One sync reads up to 100 events from the last 24 hours. When that page comes back full, each count is marked as a floor.

An example of Founder OS reading four connected tools, Stripe, Razorpay, HubSpot and Slack, once a day, then working out monthly recurring revenue, churn and the customer count from the billing records by fixed formulas, each figure labelled Calculated.

Tools & workflows

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Industry validators

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Comparisons

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Guides

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Trust & docs

Research methodology About the team Product changelog Plans and trial limits

Connect PostHog to Founder OS

Founder OS reads the tools your company runs on and keeps your figures, notes and decisions in one place. It is part of Pro Plus.

See Founder OS