Plugins
Everything else on this site is about calling into Biflus — reading and writing your own account's clients, items, and invoices. A plugin is the other direction: code Biflus calls out to, to add a real capability inside the product itself.
What a plugin can do
A working example already exists: a Shopify integration that pulls a store's product catalog into Biflus as real, reusable Items — matched and kept in sync by SKU, not a one-time import. That's the shape a plugin takes: something a Biflus account can turn on, that then does real work inside the product on its own.
How it works
When an account enables a plugin, Biflus can call the plugin's own webhook with a small JSON payload identifying which account and what triggered the call. The plugin does whatever it needs to, then writes the result back through Biflus's own API using the same credentials every other integration on this site uses.
Submit a plugin
Plugin submission, review, and approval happen on a separate site built specifically for it: plugins.biflus.com. That's also where the exact payload shape and write-back contract are documented in full.