About BitcoinMargin
Free crypto tools and education from MN Media s.r.o. Learn how our content is made, where the data comes from, and how to contact us.
What we do
BitcoinMargin provides free tools, market data and explanations to help people understand cryptocurrency markets and trading risk. The site is operated by MN Media s.r.o., a company registered in the Czech Republic.
You can use our calculators and read our guides without creating an account. We do not operate an exchange, execute trades, hold customer funds or provide personalized investment advice.
Tools, data and guides
- Trading calculators help you explore margin, liquidation, position sizing and funding payments. Results depend on each tool’s inputs and assumptions.
- Market data covers cryptocurrency prices, funding rates and supported commodity markets. Coverage and observation times depend on the page.
- Educational guides explain trading products, costs and risks. Worked examples illustrate a model; they do not promise future returns.
How our content is made
Our guides, explanations, tool copy and translations are generated with artificial intelligence under human direction. MN Media s.r.o. holds editorial responsibility for the site.
We use primary documentation and market-data sources where available. Automated checks cover calculations, translation coverage and page rendering, but can miss errors. Check the sources and dates on each page and report inaccuracies.
AI-generated content is identified on the page. Educational material does not replace a provider’s current terms, contract specifications or your own assessment of risk.
How the site is funded
Some outbound links are affiliate links. We may receive a referral payment or a share of fees when a reader follows a link and meets the partner’s conditions. Terms vary by partner and product.
Affiliate relationships are disclosed alongside relevant links. A listing does not mean a platform is available or suitable for everyone. Product availability and partner links depend on location and applicable restrictions. Read our Advertising Disclosure.
Where the data comes from
Prices and estimates are indicative. Check the current quote and contract terms with the provider before making a transaction.
Crypto prices
CoinGecko supplies cryptocurrency price and market data. Prices, liquidity and contract terms can differ across exchanges.
Funding and exchange markets
Public exchange APIs supply instrument, mark-price and funding data. Settlement intervals and market coverage vary by venue; the relevant pages identify sources and observations.
Fear & Greed Index
Alternative.me supplies the sentiment index and historical observations. The index summarizes its methodology; it is not a trading signal or a feed of separate component scores.
Fiat & Crypto Converter
ExchangeRate-API supplies fiat rates, with Fawaz Ahmed Currency API as a fallback. CoinGecko supplies crypto prices. Cross-rates use each asset’s USD value; source times are shown and may differ.
Commodities
Indicative quotes come from PrimeXBT’s public market catalogue. Contract availability is checked against our exchange inventories. Retrieval time is not a trade timestamp. Missing data is left unavailable.
Ethereum gas
Current fee estimates use public Ethereum RPC data, with additional fallback providers. The tracker includes a transaction-cost estimate; actual execution costs can differ.
Privacy and security
No account is needed to read the site or use its calculators. We process limited technical information for site operation, diagnostics and abuse prevention. Optional analytics and advertising follow the site’s consent controls.
Our Privacy Policy explains data types, purposes and retention periods. You can review optional cookie choices through Cookie Preferences in the footer.
Who operates the site
| Item | Details |
|---|---|
| Legal name | MN Media s.r.o. |
| Company ID (IČO) | 24045764 |
| Registered seat | Varšavská 715/36, Vinohrady, 120 00 Praha 2, Czech Republic |
| Commercial register | Municipal Court in Prague, section C, file 437414 |
| Legal form | Limited liability company (společnost s ručením omezeným) |
Contact and corrections
For a correction, broken tool, accessibility problem or other question, use our Contact page or email [email protected]. Include the page address and enough detail to reproduce the problem. Do not send passwords, private keys or other secrets.
We cannot recover exchange accounts, resolve withdrawals, recover lost keys or provide personalized investment or tax advice. For account issues, contact the provider through its official support channel.
Derivatives & Leveraged Products — Important Risk Warning
Derivatives and leveraged products are complex and carry a high risk of rapid, substantial losses. Depending on the product and account rules, losses can exceed the initial margin or money committed. A stand-alone purchased option can lose its entire premium plus transaction costs; writing options, exercising into another position, or combining positions can create additional obligations. An uncovered call writer can face unlimited loss. Applicable legal protections can affect the loss boundary.
You should carefully consider whether you understand how derivatives work and whether you can afford to take the high risk of losing your money. This content is for educational purposes only and does not constitute financial advice, investment advice, or a recommendation to trade derivatives.
Legal availability and regulatory protections depend on the product, service, provider and jurisdiction. In the EU, check the applicable investment-services rules, including MiFID II where relevant, and any product restrictions. Before trading, verify with the relevant regulator whether the provider has the permissions required for the service and whether the product may be offered to you. A website being accessible, or a product appearing on this website, does not establish authorization or eligibility.