The business account for AI agents. Cards, budgets and rules for your agents, on licensed European banking rails.
Your agent opens the account.
The agent files the application over MCP and tracks the KYB. You appear exactly twice: verify your identity once, then sign the mandate with a passkey. Everything else is the agent's job.
$ npx quaestrum connect
✓ Onboarding MCP added to Claude
start_onboarding › Nordwind GmbH · HRB 84321
✓ Application filed · KYB running with banking partner
➜ your step: verify identity & sign the mandatequaestrum.com/verify/8F3K · passkey · the only human moment
check_status › approved · account live
✓ Ads Agent mandate active · €1,000 monthly · agent can pay
One control layer. Everything your agents need.
Admins set budget and rules and confirm once via strong customer authentication. The agent pays autonomously inside its mandate. Every action is logged.
The mandate, enforced on every payment
One card per agent, decisions in real time
Budgets that update themselves
KYB once. Mandates forever.
Every action, audit ready
Quaestrum is a financial technology company, not a bank and not a payment institution. Business accounts, virtual Visa cards, KYB and payment execution are provided by a licensed European banking partner. Card transactions run on the Visa network.
Quaestrum never holds customer funds. Agents act only inside a mandate that a human has authorised via strong customer authentication (PSD2 SCA).
Agents act.
Humans stay in control.
Agents connect through the MCP server, the API and the CLI. Humans own the policies and approve the exceptions, from the web console or their own personal agent.
invoices_july.zip
ZIPget_mandate ›
create_payments ›