Privacy Policy

The short version

• Fulcrum has no accounts, no sign-up and no email list.
• Fulcrum sets no advertising or analytics cookies and runs no tracking scripts of its own.
• Your settings stay in your own browser. Fulcrum has no user database.
• To show positions, Fulcrum sends the wallet addresses you enter to the data services listed below.

What stays in your browser

Fulcrum keeps the following in your browser's local storage, on your device only:

• The wallet addresses you enter or select, and your address book and its labels.
• Positions and entry prices that you type in by hand.
• Your Octav API key, if you add one.
• Cached results, such as the portfolio timeline, so that pages load faster.
• Display settings, such as the light or dark theme.

You can remove all of it at any time: clear the site data for fulcrum.trading in your browser.

What is sent to other services

When you look up a wallet, your browser sends that address to Fulcrum's server, and the server asks other services for the data. Wallet addresses and their on-chain activity are public information, but an address together with your IP address can identify you.

• Pendle (api-v2.pendle.finance): wallet addresses, to read positions, transactions and market data.
• Octav (api.octav.fi): wallet addresses and your Octav API key, only if you add a key. The key passes through Fulcrum's server to Octav with each request. Fulcrum does not store it on the server. If you use the address book sync, the addresses and labels you choose are read from, or written to, your Octav account.
• Public blockchain RPC nodes, CoinGecko, DeFiLlama, Snapshot and Magpie: requests for market, price, gas and governance data. Most of these requests carry no wallet address.
• Vercel, the hosting provider: standard server logs for each request, such as IP address, browser type, the address requested and the time. These logs can include a wallet address, because it is part of the request.
• Reown (WalletConnect) and your wallet software: if you connect a wallet, the connection runs through Reown's service. Reown and your wallet provider may collect usage data under their own privacy policies.

Each of these services handles data under its own privacy policy. Fulcrum does not sell personal information and does not share it for advertising.

Connecting a wallet

You can use Fulcrum by typing in a public address, with no wallet connection. If you connect a wallet, Fulcrum reads its public address. Fulcrum never asks for, receives or stores a private key or a seed phrase. Do not give these to any website.

Why this data is used

Fulcrum uses wallet addresses for one purpose: to show the positions, history and calculations you ask for. Server logs are used only to keep the site running and secure. Where the law asks for a legal basis, it is our legitimate interest in running the service you requested.

Your choices and rights

Depending on where you live, you may have the right to ask what personal information is held about you, to have it corrected or deleted, or to object to its use. Fulcrum holds very little: it has no accounts and no user database, and what it stores is on your own device, where you can delete it. You can also complain to your local data protection authority.

Fulcrum is not intended for anyone under 18.

Changes

If Fulcrum adds analytics, cookies or accounts, this page will be updated first, and consent will be asked for where the law requires it. The date at the top shows the latest version.

Who runs Fulcrum

Fulcrum is a personal project run by one person.