Common Knowledge Join Flow
A form for users to sign up to a paid membership for your organisation, implemented as a WordPress block.
Use with caution
Common Knowledge Join Flow works, but test it on a staging site before relying on it in 2026. Was last updated 2 weeks ago, and scores 59/100 on our health check.
- Actively developed — last update 2 weeks ago
- Small user base (<10 active installs)
- Very few reviews so far
- Needs PHP 8.2 or newer
How does it stack up?
Side-by-side on installs, updates, ratings & supportDaily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where Common Knowledge Join Flow stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| join | >100 |
| membership | >100 |
| subscription | >100 |
About Common Knowledge Join Flow
From the official readme · v1.4.43Description
A form for users to sign up to a paid membership for your organisation,
implemented as a WordPress block.
Features:
- Custom theme and custom CSS
- Fully customizable membership tiers
- Three payment providers:
- Stripe
- GoCardless
- ChargeBee
- Optional membership integrations:
- Auth0
- Mailchimp
- Action Network
ChargeBee setup
To use ChargeBee, you must configure the payment plan names in the Join Flow settings
to match the price IDs in the ChargeBee back-end.
Currently, this requires logging in to the ChargeBee dashboard, creating a
subscription, and setting a price for the desired currency. The price details
for the selected currency will have an ID. Copy and paste this ID into the
name of the membership plan in the Join Flow backend.
To support an additional donation in ChargeBee, create two more products:
– an addon called “Additional Donation”, with a price in the desired
currency called “additional_donation_monthly”.
– a charge called “Additional Donation”, with a price in the desired
currency called “additional_donation_single”.
External Services
The following is a list of all the external services used by the plugin.
Each service is marked as optional or required.
-
getAddress()
Domain: getaddress.io
Used for: converting a UK postcode to a full address.
Data received: the postcode provided by the user. -
Ideal Postcodes
Domain: ideal-postcodes.co.uk
Used for: converting a UK postcode to a full address.
Data received: the postcode provided by the user. -
postcodes.io
Domain: postcodes.io
Used for: fetching useful data about a postcode that is then sent to your organisation’s membership list.
Data received: the postcode provided by the user. -
ChargeBee
Domain: chargebee.com
Used for: managing user payments and subscriptions.
Data received: user payment information, i.e. credit/debit card details or bank account details. -
Stripe
Domain: stripe.com
Used for: managing user payments and subscriptions.
Data received: user payment information, i.e. credit/debit card details or bank account details. -
GoCardless
Domain: gocardless.com
Used for: managing user direct debit subscriptions.
Data received: user bank account details. -
Action Network
Domain: actionnetwork.org
Used for: storing user membership details.
Data received: all data provided by the user. -
Mailchimp
Domain: mailchimp.com
Used for: storing user membership details.
Data received: all data provided by the user. -
Auth0
Domain: auth0.com
Used for: giving users the ability to modify their data.
Data received: the user’s name, email, password and payment subscription ID. -
Zetkin
Domain: zetkin.org
Used for: storing user membership details.
Data received: all data provided by the user.
Contact Us
Need help? Contact us at hello@commonknowledge.coop.
Changelog
1.4.43
- Let a membership plan send people to a chosen page instead of taking payment
1.4.42
- Fix: hide duplicated radio input on payment plan page
1.4.41
- Allow conditional fields to depend on any type of input
1.4.40
- Fix bug when editing a custom amount wouldn’t auto-select that option.
1.4.39
- Add Zetkin people listing and Zetkin and Mailchimp tag helpers that report status instead of throwing, for bulk maintenance jobs
1.4.37
- Add “cancelled” tag option, distinguishing this from lapsed membership
For developers
Is this your plugin? Show off the numbers.
Add a live badge to your site, docs or GitHub README. It updates on its own — no account needed.
Best Common Knowledge Join Flow alternatives
All join plugins →| Rank | Plugin | Active installs |
|---|---|---|
| 1 |
|
20+ |
FAQ
Common Knowledge Join Flow: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 13, 2026
Is Common Knowledge Join Flow free?
Yes. Common Knowledge Join Flow is free to download and use from the official WordPress.org plugin directory.
Is Common Knowledge Join Flow safe to use in 2026?
Common Knowledge Join Flow works, but test it on a staging site before relying on it in 2026. Was last updated 2 weeks ago, and scores 59/100 on our health check.
How many websites use Common Knowledge Join Flow?
Common Knowledge Join Flow is active on <10 WordPress websites and has been downloaded 4,241 times since it launched in December 2024. It was downloaded 277 times in the last 30 days.
Does Common Knowledge Join Flow work with WordPress 7.1?
Common Knowledge Join Flow is officially tested up to WordPress 7.0.7, while the latest release is 7.1.3. It may still work, but try it on a staging site first.
What PHP version does Common Knowledge Join Flow need?
Common Knowledge Join Flow requires PHP 8.2 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was Common Knowledge Join Flow last updated?
The latest version, 1.4.43, was released on October 1, 2026 (2 weeks ago).
Who makes Common Knowledge Join Flow?
Common Knowledge Join Flow is developed and maintained by commonknowledgecoop.
What are the best alternatives to Common Knowledge Join Flow?
The most popular alternatives to Common Knowledge Join Flow are Invitations for Slack (20+ installs).
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