New · Versioned factor library, hashed period close

The carbon ledger and the report
that writes itself.

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

Start free 14-day trial Talk to founder
BAFU 2025 factors
GHG Protocol Corporate Standard
ISSA 5000 ready
Hosted in Switzerland · eu-central-2
~/cobank/2026-q3/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 2025
ecoinvent 3.10
IEA 2025
EPA 2024
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 into a hash chain. What used to take two weeks of spreadsheet work takes an afternoon.

Bexio
SAP B1
PDF/CSV
DATEV
Abacus
API
Images

Ingest

Direct import from Bexio (Swiss SME ERP), 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 ecoinvent. Anything below your threshold lands in your reviewer’s queue — never silently approved.

li_a4f9 0x9a4f
li_5022 0xc811
SEALED 0xfe07

Seal

Each line’s row hash includes the line before it. At period close, a single root hash commits the period — verifiable byte-for-byte by your auditor in seconds.

Read the methodology that backs every line → /methodology

0factor versions

Every factor in cobank’s library is versioned with effective dates and a source citation. 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
1'397 factors from BAFU, DEFRA, ecoinvent, IEA, and EPA. Every line records which factor version it used. Boundary changes are traceable across years.
Tamper-evident chain
SHA-256 row hashes form an append-only chain. Any retroactive edit invalidates every subsequent hash. 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.
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. You only pay for the line items you classify. Volume pricing kicks in past 25'000 lines per year.

Starter
CHF 49/mo

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

Start free trial
Growth
CHF 179/mo

For mid-sized companies running recurring reporting cycles.

Start free trial
Enterprise
Volume· contact us

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.

Start free 14-day trial Talk to founder