Support

Questions humans ask

Bots just read the docs. But we get it — you need answers too. Can’t find yours? Check the API docs.

Starter is $9/month — that's less than your morning coffee habit. Every plan includes the full REST API, PDF generation, and email sending. Pro ($29/mo) unlocks MCP, unlimited invoices, and full email tracking. All plans come with a 14-day free trial of Pro, no credit card required.

Generate an API key in Settings (10 seconds), then give your agent the key + the OpenAPI spec URL. Claude, GPT, and other LLMs read the spec and discover all endpoints automatically. Total setup time: about 5 minutes. Your bot learns faster than your last intern.

Billbot supports any currency — EUR, USD, GBP, CHF, JPY, and more. You set a default currency in your profile and can override it per invoice. Tax rates are also configurable per invoice, so you can handle 19% VAT in Germany and 0% for a US client in the same account.

Absolutely! The web dashboard works beautifully for manual invoicing. "Agent-first" means the API is a first-class citizen, not the only way to use Billbot. Think of it this way: the API came first, the dashboard is the pretty face we put on it for humans.

You generate API keys from the Settings page. Each key starts with "bb_" and is shown once — store it securely. Use it as a Bearer token in the Authorization header. The web dashboard uses secure session cookies, so both methods work seamlessly.

llms.txt is a plain-text README for robots — it explains what Billbot does and how to use the API so AI agents understand instantly. MCP (Model Context Protocol) is an open standard that lets AI agents call Billbot's tools directly, like giving your bot a phone number. Both are built in and just work. Zero configuration.

Yes. Your company name, address, logo, and payment details are pulled from your profile settings and appear on every invoice. Set it up once and every invoice your agent creates will look professional and on-brand.

Very. API keys are hashed with SHA-256 before storage (we can't even read them). Sessions use HTTP-only cookies. All traffic is TLS encrypted. Row-level security on the database. We take security more seriously than our jokes.

Yes. Billbot integrates with Resend for email delivery. You can send invoices to clients directly from the dashboard or via the API, with delivery tracking so you know when your invoice was opened.