bitculator.com

# Bitculator

> Bitculator is a cryptocurrency market-data, analytics, and developer-API platform. It tracks coins and tokens with prices averaged across 16 exchanges — market capitalisation, 24-hour volume, circulating and max supply, all-time highs and lows, exchange trust scores, and hardware/software wallet reviews — plus proprietary market-sentiment analytics: a crypto Fear & Greed index, a Bull/Bear index, an Altseason index, and a market-wide technical-indicator tally. The same data is available on the website (in 27 languages) and through a Bearer-authenticated REST/JSON API.

Developers use the **Bitculator Data API**, a REST API with base URL `https://bitculator.com/api/v1`. Every request authenticates with an `Authorization: Bearer <API_KEY>` header (create a free key in the developer console). Responses use a `{ data, meta }` JSON envelope, and prices, rates and supplies are returned as exact decimal strings (never lossy floats). Endpoints are grouped into: coins & prices, markets & tickers, exchanges & trust scores, wallets, technical indicators, sentiment indices, global market aggregates, currency conversion, editorial content, and webhooks/alarms. There are three plans — **Free, Starter, Pro** — each with a monthly request quota and per-minute burst limits; the Free plan includes 10,000 requests a month and needs no card.

## Localisation

**Every page URL below applies to all 27 languages.** The links are shown in their canonical English form (`/en/…`); swap the `/en/` path segment for any supported locale code to get the exact same page, translated:

`en`, `de`, `fr`, `es`, `it`, `nl`, `da`, `no`, `sv`, `ru`, `ja`, `zh`, `tr`, `pt`, `vi`, `id`, `pl`, `uk`, `cs`, `ar`, `sk`, `th`, `ko`, `ro`, `hu`, `sr`, `fi`

Example: `https://bitculator.com/en/crypto-markets` → `https://bitculator.com/de/crypto-markets`. The machine artifacts (`/api/v1/openapi.json`, the Postman collection, `/apis.json`, `/status.json`, the `/.well-known/` documents, and the API itself under `/api/v1`) are locale-agnostic and carry no `/en/` segment.

## Data API
- [API documentation](https://bitculator.com/en/documentation/crypto-api/v1): Complete reference for the Bitculator crypto Data API — every endpoint, query parameter, authentication, rate limits and quotas, the error envelope, and copy-paste code examples in cURL, JavaScript, PHP and Python.
- [OpenAPI specification](https://bitculator.com/api/v1/openapi.json): Machine-readable OpenAPI 3.0 spec for the Data API (public, no key required) — import into Swagger, Postman or code generators.
- [Independent accuracy benchmark](https://openchainbench.com/benchmarks/price-api-accuracy): OpenChainBench compares how close each crypto price API sits to the real exchange price, Bitculator included.
- [Postman collection](https://bitculator.com/documentation/crypto-api/v1.postman): Ready-to-import Postman collection for the Data API.
- [API overview & pricing](https://bitculator.com/en/crypto-api): The crypto API landing page — what data the API covers, a Free vs Starter vs Pro plan comparison, quotas, and example requests.
- [Developer console](https://bitculator.com/en/user/developer/api): Create and manage Bearer API keys (the `data-api` ability) and view usage and quota — requires a free account.
- [Embed widgets documentation](https://bitculator.com/en/documentation/crypto-embed/v1): Free embeddable crypto widgets (iframe) for any website — currency converter, price-history chart, and DCA / profit / interest / loan / staking / tax calculators.
- [MCP server documentation](https://bitculator.com/en/documentation/crypto-mcp/v1): The Bitculator MCP server at `https://bitculator.com/mcp` — 19 read-only market-data tools over Streamable HTTP for Claude, Cursor, VS Code and any MCP client; server card at `/.well-known/mcp.json`.
- [Official SDKs](https://github.com/Bitculator): TypeScript (`@bitculator/sdk`), Python (`bitculator`), PHP (`bitculator/sdk`), Go, Rust, Java, C# and C++ clients covering every endpoint.
- [API changelog](https://bitculator.com/en/documentation/crypto-api/changelog): Every change to the Data API and its contract, dated and versioned.
- [API policies](https://bitculator.com/en/documentation/crypto-api/policies): Versioning, what counts as breaking, the six-month deprecation timeline, limits, and responsible disclosure.
- [Platform status](https://bitculator.com/en/status): Live status of the website, Data API, MCP server, market-data feed, realtime prices and webhooks — also as JSON at `https://bitculator.com/status.json`.
- [APIs.json](https://bitculator.com/apis.json): Machine-readable index of every Bitculator API and its artifacts; the RFC 9727 catalog lives at `https://bitculator.com/.well-known/api-catalog` and the security contact at `https://bitculator.com/.well-known/security.txt`.
- [Agent skills](https://bitculator.com/.well-known/agent-skills/index.json): Agent Skills index (SKILL.md files, with sha256 digests) that teach an agent to call the Data API and to connect to the MCP server.
- [Agent resource catalog](https://bitculator.com/.well-known/ard.json): ARD (Agentic Resource Discovery) manifest listing the Data API, the MCP server card and the skills, each with example queries; also served at `/.well-known/ai-catalog.json`.
- [Published datasets](https://doi.org/10.5281/zenodo.23304318): Daily history of the Fear & Greed index, technical verdicts, the altseason count and exchange trust scores as CSV files under CC BY 4.0 (Zenodo, with README).
- [JSON Schema bundle](https://bitculator.com/documentation/crypto-api/v1.schemas): The shared response shapes (envelope, error envelope, pagination, webhook event) as JSON Schema 2020-12.

## Market data
- [Crypto markets](https://bitculator.com/en/crypto-markets): Live cryptocurrency prices and market-cap rankings — a sortable table of coins and tokens with price, 24h/7d change, volume, market cap and supply.
- [Fear & Greed index](https://bitculator.com/en/crypto-markets/fear-and-greed-index): The crypto Fear & Greed index for the whole market and for each coin, with its four components (market breadth, momentum, price volatility, volume volatility) and method documented.
- [Market heatmap](https://bitculator.com/en/crypto-markets/heatmap): Crypto market heatmap — a treemap of the top coins sized by market cap and coloured by price performance.
- [Exchanges](https://bitculator.com/en/crypto-exchanges): Cryptocurrency exchange rankings and trust scores, with trading volume and market coverage.
- [Wallets](https://bitculator.com/en/crypto-wallets): Crypto wallet reviews and comparisons — hardware and software wallets, specifications, and supported assets.
- [Liquidations](https://bitculator.com/en/crypto-liquidations): Crypto derivatives liquidations — long vs short liquidation activity across exchanges.

## Calculators & tools
- [All crypto tools](https://bitculator.com/en/crypto-tools): Directory of Bitculator's free cryptocurrency calculators and tools.
- [DCA calculator](https://bitculator.com/en/crypto-tools/dollar-cost-average-dca-calculator): Dollar-cost-averaging (DCA) calculator — simulate recurring crypto buys and returns over time.
- [Profit / loss calculator](https://bitculator.com/en/crypto-tools/profit-loss-calculator): Crypto profit and loss calculator — compute ROI, net profit and break-even for a trade.
- [Compound interest calculator](https://bitculator.com/en/crypto-tools/interest-calculator): Crypto compound-interest calculator — project future value with compounding.
- [Loan calculator](https://bitculator.com/en/crypto-tools/loan-calculator): Crypto loan calculator — repayment, interest and amortisation schedule.
- [Staking calculator](https://bitculator.com/en/crypto-tools/staking-calculator): Crypto staking-rewards calculator — estimate yield from amount, APR/APY and duration.
- [Tax calculator](https://bitculator.com/en/crypto-tools/tax-calculator): Crypto tax calculator — estimate taxable amounts across gains, mining, staking, airdrops and yield.
- [Currency converter](https://bitculator.com/en/crypto-tools/converter/bitcoin/ethereum): Crypto currency converter — convert between any two crypto or fiat currencies at live rates.
- [Marketcap flipper](https://bitculator.com/en/crypto-tools/market-cap-flipper-calculator/bitcoin/ethereum): "Flippening" calculator — the price one coin needs to match another's market cap, and the implied multiple.
- [Price history chart](https://bitculator.com/en/crypto-tools/historical-price-data/bitcoin): Interactive historical price chart (zoom) for any cryptocurrency.
- [Compare](https://bitculator.com/en/crypto-tools/compare): Compare cryptocurrencies, exchanges or wallets side by side.

## Learn
- [Glossary](https://bitculator.com/en/crypto-glossary): Crypto glossary — clear definitions of cryptocurrency, blockchain, market and trading terms.
- [Articles](https://bitculator.com/en/crypto-articles): Cryptocurrency articles, guides and explainers.
- [Quizzes](https://bitculator.com/en/learn/quizzes): Interactive crypto quizzes — test and learn cryptocurrency, blockchain and trading knowledge.
- [Facts](https://bitculator.com/en/crypto-tools/facts): Short, shareable cryptocurrency facts.

## Optional
- [Documentation hub](https://bitculator.com/en/documentation): Index of all Bitculator product and API documentation.
- [Sitemap](https://bitculator.com/sitemap/sitemap.xml): Full XML sitemap of the site.
- [robots.txt](https://bitculator.com/robots.txt): Crawler directives.