About BitcoinMargin
Learn about BitcoinMargin — our mission, editorial standards, data sources, and commitment to transparent crypto education.
What We Are
A free, independent educational platform
Builders of open-access trading tools and calculators
Transparent about our data sources and methodology
Clear risk disclosures in line with MiCA
GDPR-compliant with minimal data collection
What We Are Not
Not a cryptocurrency exchange or broker
Not a financial advisor — we don't give investment advice
Not a custodian — we never hold your funds or keys
Not sponsored by any exchange (affiliate links are disclosed)
Not offering personalized financial recommendations
Data Sources & Accuracy
CoinGecko Pro API
Live spot prices, market caps, and 24h volumes for the top ~250 assets are pulled from the CoinGecko Pro /coins/markets and /simple/price endpoints. Prices on dashboard widgets refresh every 60 seconds; deep-link coin pages refresh on each request and cache for 5 minutes server-side. If the API returns a 429 or 5xx response, the front-end falls back to the last cached value and displays the cache age.
Alternative.me Fear & Greed Index
The Crypto Fear & Greed Index value (0–100) and its component breakdown are pulled from the public alternative.me/fng API once per hour. Historical series for the chart covers the index since its February 2018 launch. If the endpoint is unreachable, the dashboard shows the previous day's value with a stale-data badge rather than a blank widget.
Fiat & Crypto Converter
Each asset is valued in US dollars. The result is amount × source USD price ÷ target USD price. Fiat rates come from ExchangeRate-API, with Fawaz Ahmed Currency API as a fallback; crypto prices come from CoinGecko using unique coin identifiers. Times refer to the underlying source observations. Fiat rates and crypto prices can update at different times.
Commodities
Quotes come from PrimeXBT’s public market catalogue and are cached for up to five minutes. The retrieval time shows when we fetched the quote; it is not an exchange trade timestamp. Contract rows show the observation date from our exchange inventories. Missing data stays unavailable; we do not generate replacement prices or history.
Ethereum Gas & On-chain Data
Base fee, priority fee, and pending-block data come from Etherscan's gastracker API and a fallback public RPC node, polled every 15 seconds (one block-time post-Merge). Historical gas charts aggregate hourly medians since the August 2021 EIP-1559 activation. After the March 2024 Dencun upgrade we also surface L2 blob-fee data for Arbitrum, Optimism, and Base.
Note: All prices are indicative and may differ slightly from exchange prices due to API refresh intervals. Always verify on your exchange before placing trades.
Editorial Standards
Research
Content is based on primary sources — exchange documentation, protocol whitepapers, and verifiable market data.
Accuracy Review
All calculations, formulas, and technical claims are verified against multiple sources before publication.
Plain Language
We write for beginners. Complex concepts are explained with examples, visuals, and interactive tools.
Regular Updates
Guides are reviewed and updated to reflect current market conditions, fee changes, and regulatory developments.
How This Content Is Made (AI Transparency)
Privacy & Security
No Account Required
All tools work without registration, login, or email. No personal data is collected to use our calculators or read our guides.
Minimal Data Collection
We use privacy-respecting analytics. IP addresses are hashed (for vote deduplication only) with a 14-day retention period.
Security Headers
Our production site enforces HSTS, Content Security Policy (CSP), X-Frame-Options, and other standard security hardening.
GDPR Compliant
Cookie consent with granular controls and withdrawal option. All data practices documented in our Privacy Policy.
Operator & Company Details
| 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) |
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.
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