New · Versioned factor library, hashed period close

The carbon ledger your auditor can test.
And the report that writes itself.

cobank.ai parses every invoice line, calculates kgCO₂e against a versioned factor library, and seals each closed period under a SHA-256 snapshot hash. Period close drops from two weeks of spreadsheets to an afternoon.

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BAFU 2025 factors
GHG Protocol Corporate Standard
ISSA 5000 ready
Hosted in Switzerland · eu-central-2
~/cobank/ledger.live Live
Period
CHF 0
Auto-classified
0%
Open exceptions
0
Built on the same factor sources your auditor will recognise.
BAFU 2025
DEFRA 2024
GLEC 2025
IMO 2025
IPCC AR6
GHG Protocol
How it works

Three layers, working line by line.

cobank.ai ingests every invoice, classifies every line against a versioned factor library, and seals each closed period under a snapshot hash. What used to take two weeks of spreadsheet work takes an afternoon.

Bexio
SAP B1
PDF/CSV
XRechnung
ZUGFeRD
API
Images

Ingest

Direct import from Bexio (Swiss SME ERP), e-invoice XML (XRechnung, ZUGFeRD/Factur-X, PEPPOL BIS), structured CSV/Excel, or any PDF invoice via OCR. Every line lands in your ledger in seconds.

li_a4f9
0.96
li_5022
0.88
li_5023
0.62
li_5024
0.91
li_5025
0.34

Classify

Each line gets a factor match, a confidence score, and a reasoning trace from BAFU, DEFRA, or GLEC. Anything below your threshold lands in your reviewer’s queue, never silently approved.

li_a4f9 0x9a4f
li_5022 0xc811
SEALED 0xfe07

Seal

Every edit to a line is hash-chained to the edit before it. At period close, a single SHA-256 snapshot hash seals the period, verifiable byte-for-byte by your auditor.

Read the methodology that backs every line → /methodology

0curated factors

Every calculation factor is versioned with effective dates and a source citation, and a 1'397-factor suggestion pool backs reviewer challenge. Re-run a prior period; the math is reproducible.

“No guessing. Every kilogram of CO₂e we report carries its factor’s hash. If your auditor wants to verify, they verify, not negotiate.”

FB
Frédéric Beckmann
Founder · cobank.ai
Platform

Built for the people who sign the report.

Every kilogram of CO₂e traces to a line item, a factor, and a hash. Every period close is sealed. Every auditor gets a workbench, not a CSV export.

Line-item carbon ledger
Every invoice gets parsed line-by-line. Every line carries a factor, a unit conversion, and a kgCO₂e total, with the math visible.
Versioned factor library
Over 50 curated calculation factors across 13 sources (BAFU, DEFRA, GLEC, IMO, IPCC), each versioned with effective dates and a source citation, backed by a 1'397-factor suggestion pool for reviewer challenge. Every line records which factor version it used.
Tamper-evident chain
Every change to a line lands in an append-only SHA-256 edit log, each entry chained to the one before. Tampering with history breaks the chain. Your auditor verifies in seconds.
Auditor workbench
Invite your firm directly. They get a separate audit-blue surface with sampling, workpapers, and ISSA 5000 / ISAE 3410 sign-off, never leaving the system.
For auditors →
Period sealing
Once a period closes, every line is frozen. Adjustments flow into the next period as auditable amendments, never silent edits to historical data.
Reports your auditor recognises
VSME, GHG Protocol Corporate Standard, and CSRD-ready exports. Each one signed against the period’s snapshot hash.

See the technical methodology behind every feature → /methodology

Pricing

Pay per line item, not per seat.

Auditors and reviewers come free. Every plan includes a yearly line-item allowance; past it you pay per additional line, never per seat.

Starter
CHF 49/mo
1'000 lines / year included · CHF 0.09 per additional line

For Swiss SMEs filing their first VSME data or preparing for a bank request.

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Growth
CHF 179/mo
10'000 lines / year included · CHF 0.06 per additional line

For mid-sized companies running recurring reporting cycles.

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Enterprise
Volume· contact us
Typical contract band CHF 30k – 150k ARR

For multi-entity groups with consolidated reporting. Learn more →

Talk to founder

See full plan comparison and the line-item calculator → /pricing

Read the enterprise plan details → /enterprise

Close your first reporting period before the end of next week.

Upload your first invoice today. Your kgCO₂e arrives in minutes. Your reporting period closes when you say so.

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