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ATHEMI + AbaNinja

Client collaboration for AbaNinja freelancers

AbaNinja brings simple, Swiss-compliant accounting to freelancers and micro-teams. ATHEMI adds a modern customer collaboration layer — letting you send and track quotes, collect signatures, and share invoices professionally.

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Beta

What is AbaNinja?

AbaNinja is a simplified online accounting platform from Abacus Research AG, targeted specifically at Swiss freelancers, self-employed professionals, and micro-teams. It strips down the comprehensive Abacus business suite into an affordable, easy-to-use web app focused on invoicing, expenses, and basic bookkeeping.

AbaNinja integrates natively with AbaSalary for simple payroll and with Swiss banks for QR-bill processing. It is particularly popular with new entrepreneurs who need Swiss-compliant accounting but find full Abacus overkill for their size.

How ATHEMI will integrate with AbaNinja

The AbaNinja connector is currently in Beta. Once validated, it will offer:

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Quote import

Browse AbaNinja offers and import them into ATHEMI projects with one click.

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Contact sync

Pull AbaNinja contacts into ATHEMI and keep them in sync.

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Quote status updates

When a customer accepts a quote in ATHEMI, the linked AbaNinja offer is updated.

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Invoice push

Import supplier invoices received in ATHEMI into AbaNinja as expense bills.

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Legally valid signatures

Customers sign quotes with hash-verified digital signatures, archived in ATHEMI.

Best for

ATHEMI + AbaNinja is designed for Swiss freelancers, self-employed professionals, and small teams who chose AbaNinja for its simplicity and Abacus heritage, and now want a professional way to send and track quotes with clients.

If you send quotes from AbaNinja but chase customers over email for approvals, ATHEMI provides a shared project space where quotes, invoices, and signatures are tracked in one place.

Why connect AbaNinja with ATHEMI?

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Simple tools for lean teams

Both AbaNinja and ATHEMI are built for solo entrepreneurs and micro-teams — no enterprise overhead.

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Professional signatures

Replace informal email confirmations with legally valid digital signatures that look professional.

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Quote open tracking

Know when your customer opens a quote, so you can follow up at the right moment.

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Swiss-hosted compliance

All data stays in Switzerland — both AbaNinja and ATHEMI host on Swiss servers.

Frequently asked questions about AbaNinja & ATHEMI

No. AbaNinja has its own API separate from the full Abacus suite. The ATHEMI connector is specifically built for AbaNinja's simpler API surface. See our Abacus integration for the full suite.

Yes — AbaNinja offers a migration path to the full Abacus suite. Your ATHEMI account and project history remain unchanged; only the connector on the ATHEMI side would be switched.

The connector is currently in Beta. Contact us to request early access — we will enable it for your account.

AbaNinja continues to generate Swiss QR-bill invoices natively. ATHEMI handles the collaboration layer on top — the QR-bill itself is generated and stored in AbaNinja.

Ready to connect AbaNinja with ATHEMI?

Start free — no credit card required.

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