FreeKassa Gateway
Payments through the FreeKassa aggregator: signed redirect and an independently verifiable IPN.
Instant delivery: license key + download right after payment.
Version 1.0.0 · updates delivered automatically
About
The redirect is signed with md5(m:sum:order:secret1) and the IPN callback is recomputed with secret2 — double verification, zero trust. A demo host for testing is one checkbox away.
Pro adds SBP, 54-FZ receipts and refunds.
Updates: the free version installs and updates from the official WordPress.org directory. Buying Pro activates auto-updates — the license key connects the plugin to the Yodsira store and new versions install themselves; a 12-month license is included in the price.
What it does
- md5-signed redirect
- IPN callback re-verified
- Test demo host
- Zero external libraries
- Pro: SBP, 54-FZ receipts, refunds
- Updates: free via WordPress.org, Pro auto-updates from our store (12 months)
Free vs Pro
| Free | Pro | |
|---|---|---|
| Redirect signature | md5 | md5 |
| IPN verification | md5 secret2 | md5 secret2 |
| SBP | — | Pro |
| 54-FZ receipts | — | Pro |
| Refunds | — | Pro |
| Auto-updates | WordPress.org directory | Automatic, from our store (Pro license) |
FAQ
How do updates work?
The free version updates from the WordPress.org directory. A Pro license key turns on auto-updates from the Yodsira store for 12 months.
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Installation & uninstall
Free version
- Download the zip archive with the "Download free" button above.
- In your WordPress admin: Plugins → Add New → Upload Plugin.
- Pick the downloaded zip, click "Install Now", then "Activate".
- The plugin's menu appears in wp-admin — configure it to your liking.
Pro version
- After payment, download the Pro archive from your order page (the link is also emailed).
- Install Pro like any plugin: Plugins → Add New → Upload Plugin → Activate.
- The free version must be installed and active — Pro sits on top as a companion.
- Enter the license key on the plugin's Pro settings page.
Uninstall
- Plugins → find the plugin in the list → click "Deactivate".
- Then click "Delete" — the plugin and all its data (tables, settings, logs) are removed completely.
- The Pro companion uninstalls the same way, independently; the free version keeps working.
Every plugin we ship passes a clean-uninstall test: after "Delete" no tables or leftover settings remain in the database.
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