How it works
Everything you need to know about Octav Authless
Octav Authless is a client-side crypto portfolio tracker and tax export tool powered by the Octav API. It lets you:
Portfolio Dashboard
View NAV, holdings, and DeFi protocol positions across 20+ chains
Transaction History
Browse, filter, and paginate through all your on-chain transactions
Tax CSV Export
Export to 10 tax platforms: Koinly, CoinTracker, CoinLedger, TaxBit, and more
AI Chat
Ask questions about your portfolio using OpenAI or Anthropic
Octav Authless runs entirely in your browser. There is no backend server.
- API keys are stored in localStorage, never sent to any third-party server
- All API calls go directly from your browser to the Octav API
- CSV files are generated client-side and downloaded directly
- AI chat calls go directly to OpenAI/Anthropic from your browser
The Octav API uses a pay-per-use credit system. Each credit costs $0.025 (2.5 cents).
Get your API key and purchase credits at data.octav.fi
| Endpoint | Cost | Note |
|---|---|---|
Portfolio GET /v1/portfolio | 1 credit | Per address |
NAV GET /v1/nav | 1 credit | Per address |
Transactions GET /v1/transactions | 1 credit | Per page (max 250 txs) |
Token Overview GET /v1/token-overview | 1 credit | Per address |
Historical GET /v1/historical | 1 credit | Per address |
Sync Transactions POST /v1/sync-transactions | 1 credit + indexing | +1 per 250 new txs |
Status GET /v1/status | Free | |
Credits GET /v1/credits | Free |
Sync cost examples
- Initial sync (10,000 txs): ~41 credits ($1.03)
- Subsequent sync (100 new txs): 2 credits ($0.05)
- No new activity: 1 credit ($0.025)
- Get an API key — Sign up at data.octav.fi and purchase credits
- Add your wallet address — EVM (0x...) or Solana
- Sync your data — Use "Sync Portfolio" and "Sync Txns" on the Dashboard
- View & export — Browse transactions, then export CSV for your tax platform
FAQ
One API credit costs $0.025 (2.5 cents). You can purchase credits at data.octav.fi.
Yes. Checking your credit balance (/credits) and sync status (/status) are completely free and don't consume credits.
When you sync transactions for the first time, Octav indexes all historical transactions for your address. This costs 1 credit for the API call plus 1 credit per 250 transactions indexed. Subsequent syncs only index new transactions since the last sync, so they are much cheaper.
It depends on your transaction count. For example: 10,000 transactions costs ~41 credits ($1.03). 100 new transactions on a subsequent sync costs just 2 credits ($0.05).
Addresses with more than 100,000 transactions are not indexed by the Octav API.
Export fetches all your transactions (250 per page, 1 credit per page) and converts them into a CSV format compatible with your chosen tax platform. A wallet with 1,000 transactions would cost 4 credits to export.
Octav supports 20+ blockchains including Ethereum, Polygon, Arbitrum, Optimism, Base, Avalanche, BSC, Solana, and more.
Your API key is stored locally in your browser's localStorage. It is never sent to any server other than the Octav API. All API calls are made directly from your browser.
Koinly, CoinTracker, CoinLedger, TaxBit, TokenTax, Accointing, ZenLedger, Crypto Tax Calculator, Tres Finance, and Cryptio.
Yes. Transactions must be synced (indexed) first from the Dashboard using the 'Sync Txns' button. Once synced, you can view and export them from the Transactions page.