Subscription billing: customers, subscriptions, plans and invoices. Your client pastes their Billsby key once, and your agent or your code works with their access.
Payments
About Billsby
Through Operate As, your agent, n8n workflow or code works in Billsby with your client's own access. Your client pastes their API key from Billsby once. We store it encrypted, so it never sits in an email or a shared doc. Your agent reaches any endpoint of Billsby's API through the request tool, with the client's access attached.
Common uses in Payments
Look up customers, payments and refunds
Send invoices and payment links
Report on revenue and failed payments
Billsby
Billsby · Payments
API key
Subscription billing: customers, subscriptions, plans and invoices
The client pastes their API key from Billsby's settings. We store it encrypted.
Building with Billsby? The docs have setup steps and code for every tool.
Add a client, select the services, copy the link. You'll get an email the moment their access is ready. Start free, no card required. Paid plans are one flat monthly price, and a busy month never takes your agents offline.