Le Space Belege

Collect receipts, match payments, hand over a DATEV package — pre-accounting for your small business, entirely without the cloud: everything happens on your own computer, and the books stay encrypted on your device.

Open the app Source code

No cloud

  • The books live only in your browser, encrypted with a key your passkey creates anew each time you unlock. There is no account, no password, and no copy with us — we run no server.
    Hosted on IPFS — the proof, and how to verify it

    Only the app itself is served from IPFS — your receipts and data never live there; they stay local with you. There is no server of ours behind the PWA, and that is checkable: the latest deploy publishes the IPFS hash (CID), and the same app over the public inbrowser.link gateway is the same, byte for byte — there your browser verifies the delivery against the hash itself.

    If that matters to you: with your own IPFS node (Kubo) or the IPFS Companion extension, your browser fetches the app straight from the network — then not even the visit to belege.le-space.de can be logged anywhere. Entirely optional.

    Several devices, and collaboration — still no cloud: the receipts replicate peer-to-peer between phones and computers, over libp2p and OrbitDB, optionally — in the same room by QR code, on your own network through the bridge, or elsewhere over relays. A new device only joins after proving the passkey, and coworkers get a time-limited read grant.

  • Account transactions come straight from your bank: German banks over FinTS/HBCI, with Hibiscus on the Jameica platform — no middlemen in between. For European banks under PSD2, Enable Banking is implemented but not yet field-tested. A small bridge on your own computer makes this possible; it also talks to the accounting mailbox, customer portals, exchanges and wallets, and nothing of it leaves your machine.
  • Receipts are kept locally and archived decentralised and encrypted — sealed with a key from your passkey, stored on Aleph Cloud. Only you can open the archive, and an empty browser gets everything back with the same passkey.

Crypto transactions

Every crypto movement becomes a booking in euros at the day’s rate, with its source named — ECB, Kraken, CoinGecko, Uniswap pools, the trade itself, or by hand. Swaps and migrations are followed across chains, and everything exports in an open, MIT-licensed ledger format.

Supported today

Blockchains
Bitcoin, Ethereum, Base, Arbitrum One, OP Mainnet, Polygon, Monero, Filecoin (USDFC), Akash, Nym (Nyx)
Exchanges
Kraken (read-only)
Decentralised archives
Aleph Cloud — encrypted, via the OrbitDB Storage Bridge (in progress: Filecoin, On-Chain Cloud, Lighthouse)

More on request — gladly.

AI, only on a click

  • Your model, not ours: Le Space runs no AI and sees none of your data. The bridge asks the language model you configure.
  • Our recommendation: a local model (Ollama, LM Studio) — or a TEE-hosted LLM whose attestation can be verified.
  • Every button that asks the model carries the ✦ mark, the text goes out redacted, and usage and cost stay in view.

Who it is for

Small businesses and the self-employed — especially when crypto is involved: income in coins as well as spending in utility tokens, say for Filecoin, Akash or Aleph services. The monthly DATEV package goes to your bookkeeping software or your tax advisor; the actual posting happens there.

Get going in two minutes

  1. Open belege.le-space.de and create a passkey — that is the whole set-up.
  2. Even without the bridge: load the built-in sample data and try everything — one click removes it again — or upload a bank statement (CAMT.053) right away and start matching.
  3. For bank, mailbox, portals and AI, the bridge comes onto your computer — and we set it up with you.

Open source, on purpose

  • Built in a few weeks — with substantial AI assistance. That is exactly why we publish Belege as open source, under the AGPL-3.0: anyone can use the app for free, develop it further independently, and share those developments with everyone.
  • And if building is not your thing: we gladly take on adaptations, customisation and automation — as a service.

More features

  • Device sync by passkey — phone and computer, installable as a PWA, shell works offline
  • E-invoices (XRechnung: UBL and CII) read and kept as the original
  • Eigenbelege — for crypto with hash, both addresses and gas
  • Customer portals as a receipt source, recorded once
  • Vendor accounts for credit and collective statements
  • Private payments from the business account: marked and settled
  • DKIM, SPF and scam checks on receipt mail
  • One fiscal year at a time, with a year switch
  • SKR 03 and BU keys; your own chart of accounts can be read in
  • German and English, switched at once
  • VAT overview (planned)
  • Travel expenses (planned)
  • Paperless-ngx as a receipt source (planned)

Set-up and adaptations

We set Belege up with you — bridge, bank access, accounting mailbox, customer portals, your own language model — and we build adaptations: further blockchains and exchanges, special cases, and automation of business processes, like invoicing straight into the books over UCEP. This is a paid service; write to us.

belege@le-space.de

Still early — keep storing your statements and receipts somewhere else as well. Which is exactly why we accompany the start.

Open the app belege@le-space.de