Everything your bot needs to bill
Built API-first so AI agents are first-class citizens. The web dashboard? That’s the cherry on top for the humans.
Built for bots. Polished for humans.
Every feature works via API first. The UI is just a nice bonus for when you want to see what your bot has been up to.
60-second invoices
One sentence to your bot. One API call chain. One professional invoice. Zero time wasted clicking through forms like it's 2015.
Pixel-perfect PDFs
Auto-generated with your branding, line items, and payment details. Looks like a human designed it. (Spoiler: they didn't.)
Any currency, any tax rate
EUR, USD, GBP, CHF, JPY — invoice globally. Tax rates configurable per invoice because international freelancing is complicated enough.
API-first (dashboard-second)
Every feature is an API call. Your bot, scripts, or Zapier can do everything the dashboard can. The dashboard just looks prettier doing it.
API keys in seconds
Generate a bb_ key, hand it to your agent with the OpenAPI spec URL, and watch it figure out the rest. No OAuth dance required.
Machine-readable by default
OpenAPI spec, llms.txt, and MCP server — all built in. Your AI agent discovers Billbot like it's reading a menu. No manual config needed.
But wait, there’s more
Email delivery
Send invoices directly to clients with delivery tracking. Know when they opened it (and can't claim they didn't).
Client management
Store client details once, reuse forever. Your bot can look up clients by name or email — faster than you can spell their company name.
Bank-grade security
API keys hashed with SHA-256. HTTP-only session cookies. TLS everywhere. We take security more seriously than our jokes.
Loved by freelancers worldwide
Hear from solopreneurs who automated their invoicing with Billbot.
“Billbot replaced three tools for me. I generate the invoice via the API, the PDF gets created automatically, and my client receives it — all from one chat message to my agent.”
Priya Sharma
UX Consultant, Mumbai
“The multi-currency support is a lifesaver. I bill clients in USD, EUR, and GBP without switching tools.”
Jonas Eriksson
DevOps Freelancer, Stockholm
“The OpenAPI spec is clean and well-documented. I had my agent creating invoices within 5 minutes of signing up.”
Aisha Okonkwo
Backend Engineer, Lagos
“I use the MCP server with Claude Code. It creates the invoice while I'm still in my terminal. Absolute game-changer.”
Daniel Petrov
Freelance SRE, Prague
“Billbot is hands-down the fastest way to go from 'project done' to 'invoice sent'. The PDF quality is professional.”
Sophie Chen
Product Designer, Toronto
“The llms.txt file is a brilliant touch. My custom GPT agent understood Billbot's API on the first try.”
Kenji Watanabe
AI Engineer, Tokyo
Start invoicing in 60 seconds
Free to start. No credit card required. Your first invoice is one API call away.