# Requiems API

> Requiems is a unified API platform providing instant access to production-ready APIs for text utilities, email validation, entertainment data, geographic information, and more. All APIs are accessible with a single API key.

## APIs
- [Exchange Rate](https://requiemsapi.com/apis/exchange-rate/index.md): Get live currency exchange rates and convert amounts between currencies. Rates are sourced from the ECB and cached for up to one hour.
- [Crypto Prices](https://requiemsapi.com/apis/crypto/index.md): Get live cryptocurrency prices, 24h change, market cap, and trading volume for 20+ major coins including BTC, ETH, SOL, and more.
- [BIN Lookup](https://requiemsapi.com/apis/bin-lookup/index.md): Pass the first 6–8 digits of any payment card and get back the issuing bank, card network, type, and country
- [IBAN Validator](https://requiemsapi.com/apis/iban/index.md): Validate IBAN numbers and extract the bank code and account number. Supports all countries in the official SWIFT IBAN Registry (~80 countries).
- [SWIFT Code](https://requiemsapi.com/apis/swift-code/index.md): Validate and look up bank information by SWIFT/BIC code, including institution, location, and branch metadata.
- [Mortgage Calculator](https://requiemsapi.com/apis/mortgage/index.md): Calculate monthly mortgage payments and full amortization schedules. Pass principal, annual interest rate, and loan term in years.
- [Commodity Prices](https://requiemsapi.com/apis/commodities/index.md): Historical and current annual average prices for 16 major commodities — precious metals, energy, and agricultural goods. Sourced from FRED (Federal Reserve Economic Data).
- [Inflation](https://requiemsapi.com/apis/inflation/index.md): Historical and current CPI inflation rates for 241 countries, sourced from the World Bank. Includes up to 30 years of annual data.
- [Email Validator](https://requiemsapi.com/apis/email-validate/index.md): Full email validation in one call. Syntax check, MX record lookup, disposable domain detection, normalization, and typo suggestions. Includes everything from the Disposable Domain Checker and Email Normalizer in a single request.
- [Phone Validation](https://requiemsapi.com/apis/phone-validation/index.md): Validate phone numbers globally. Detect carrier, country, type, and VOIP or virtual risk using only phone metadata.
- [Profanity Filter](https://requiemsapi.com/apis/profanity/index.md): Detect and censor profanity in text for content moderation
- [IP Geolocation](https://requiemsapi.com/apis/ip-info/index.md): Get geolocation data for any IP address including country, city, ISP, and VPN detection.
- [ASN Lookup](https://requiemsapi.com/apis/ip-asn/index.md): Look up Autonomous System Number (ASN), organization, ISP, and network route information for any IP address.
- [VPN & Proxy Detection](https://requiemsapi.com/apis/vpn-detection/index.md): Detect if an IP address belongs to a VPN, proxy, Tor exit node, or hosting provider. Returns threat scores and fraud indicators for fraud prevention and risk assessment.
- [WHOIS Lookup](https://requiemsapi.com/apis/whois/index.md): Get domain registration details including registrar, name servers, status, creation and expiry dates, and DNSSEC information.
- [Domain Info](https://requiemsapi.com/apis/domain-info/index.md): Look up DNS records and check domain availability. Returns A, AAAA, MX, NS, TXT, and CNAME records alongside a registration availability flag.
- [MX Lookup](https://requiemsapi.com/apis/mx-lookup/index.md): Look up MX (Mail Exchange) records for any domain. Returns all mail server hostnames with their priorities, sorted from highest to lowest priority.
- [Disposable Domain Checker](https://requiemsapi.com/apis/disposable-email/index.md): Check whether an email domain belongs to a known disposable or temporary email provider. Use this for targeted domain lookups. For full email validation including syntax, MX records, and normalization, see the Email Validator.
- [Timezone](https://requiemsapi.com/apis/timezone/index.md): Get timezone information for any location by coordinates or city name
- [World Time](https://requiemsapi.com/apis/world-time/index.md): Get the current time for any IANA timezone by name
- [Working Days Calculator](https://requiemsapi.com/apis/working-days/index.md): Calculate the number of working days between two dates with optional country-specific holidays
- [Holidays](https://requiemsapi.com/apis/holidays/index.md): Get a list of holidays for a specific country and year
- [Geocoding](https://requiemsapi.com/apis/geocode/index.md): Convert addresses to coordinates and coordinates back to addresses
- [Postal Code](https://requiemsapi.com/apis/postal-code/index.md): Look up city, state, and coordinates for any postal code worldwide
- [Cities](https://requiemsapi.com/apis/cities/index.md): Look up city metadata including population, timezone, and coordinates
- [Spell Check](https://requiemsapi.com/apis/spell-check/index.md): Check spelling and get correction suggestions for misspelled words
- [Thesaurus](https://requiemsapi.com/apis/thesaurus/index.md): Find synonyms and antonyms for any word to enhance vocabulary and writing
- [Dictionary](https://requiemsapi.com/apis/dictionary/index.md): Get word definitions, phonetics, usage examples, and synonyms
- [Sentiment Analysis](https://requiemsapi.com/apis/sentiment/index.md): Analyze the sentiment of any text and get a positive, negative, or neutral classification with a confidence score and full class breakdown.
- [Language Detection](https://requiemsapi.com/apis/detect-language/index.md): Detect the language of any text with confidence scoring
- [Text Similarity](https://requiemsapi.com/apis/text-similarity/index.md): Compare two texts and get a cosine similarity score between 0 and 1
- [Markdown to HTML](https://requiemsapi.com/apis/markdown/index.md): Convert Markdown to HTML in a single API call. Optionally sanitize the output to strip unsafe tags and prevent XSS.
- [Lorem Ipsum Generator](https://requiemsapi.com/apis/lorem-ipsum/index.md): Generate placeholder text for design mockups and prototypes
- [Random Words](https://requiemsapi.com/apis/words/index.md): Generate random words for testing, games, and creative projects
- [Email Normalizer](https://requiemsapi.com/apis/email-normalize/index.md): Normalize email addresses to their canonical form. Lowercased, trimmed, and canonicalized with provider-specific rules including alias-domain resolution. Also available as part of the full Email Validator.
- [QR Code Generator](https://requiemsapi.com/apis/qr-code/index.md): Generate QR codes from any text or URL, returned as a PNG image or base64-encoded JSON
- [Barcode Generator](https://requiemsapi.com/apis/barcode/index.md): Generate barcodes in multiple formats (Code 128, Code 93, Code 39, EAN-8, EAN-13), returned as a PNG image or base64-encoded JSON
- [Password Generator](https://requiemsapi.com/apis/password-generator/index.md): Generate cryptographically secure random passwords with customizable length and character sets
- [User Agent Parser](https://requiemsapi.com/apis/useragent/index.md): Parse user agent strings to extract browser, OS, device type, and bot detection
- [Counter](https://requiemsapi.com/apis/counter/index.md): Atomic, namespace-isolated hit counter
- [Random User](https://requiemsapi.com/apis/random-user/index.md): Generate random fake user profiles for testing and prototyping — names, emails, phone numbers, addresses, and avatars
- [Base64 Encode / Decode](https://requiemsapi.com/apis/base64/index.md): Encode strings to Base64 and decode Base64 back to plain text. Supports standard and URL-safe (base64url) variants.
- [Number Base Conversion](https://requiemsapi.com/apis/number-base-conversion/index.md): Convert integers between binary, octal, decimal, and hexadecimal. Accepts optional 0x, 0b, and 0o prefixes.
- [Color Format Conversion](https://requiemsapi.com/apis/color-conversion/index.md): Convert color values between HEX, RGB, HSL, and CMYK. Every response includes all four representations.
- [Unit Conversion](https://requiemsapi.com/apis/unit-conversion/index.md): Convert between units of measurement — length, weight, volume, temperature, area, and speed
- [Data Format Conversion](https://requiemsapi.com/apis/data-format-conversion/index.md): Convert structured data between JSON, YAML, CSV, XML, and TOML in a single API call.
- [Random Quotes](https://requiemsapi.com/apis/quotes/index.md): Access a database of inspirational and famous quotes
- [Trivia](https://requiemsapi.com/apis/trivia/index.md): Get random trivia questions with multiple-choice answers. Filter by category (science, history, geography, sports, music, movies, literature, math, technology, nature) and difficulty (easy, medium, hard).
- [Random Facts](https://requiemsapi.com/apis/facts/index.md): Get random interesting facts from a curated database. Filter by category — science, history, technology, nature, space, or food. Includes source attribution.
- [Emoji](https://requiemsapi.com/apis/emoji/index.md): Look up emoji by name, search by keyword, or get a random emoji with full Unicode metadata.
- [Horoscope](https://requiemsapi.com/apis/horoscope/index.md): Get daily horoscope readings for all 12 zodiac signs
- [Sudoku](https://requiemsapi.com/apis/sudoku/index.md): Generate Sudoku puzzles with solutions across multiple difficulty levels
- [Dad Jokes](https://requiemsapi.com/apis/dad-jokes/index.md): Get a random dad joke. Classic groan-worthy puns and wholesome humor, served one at a time.
- [Chuck Norris Facts](https://requiemsapi.com/apis/chuck-norris/index.md): Get a random Chuck Norris fact from a curated built-in database. Every call returns a different fact with a stable unique ID.
- [Random Advice](https://requiemsapi.com/apis/advice/index.md): Get random pieces of advice and wisdom for inspiration
- [Fitness Exercises](https://requiemsapi.com/apis/fitness-exercises/index.md): Browse 1,500+ exercises with step-by-step instructions, target muscles, secondary muscles, equipment requirements, and body part filters.

## Full Documentation

- [llms-full.txt](https://requiemsapi.com/llms-full.txt): Complete documentation for all APIs in a single file

## Documentation

- [API Reference](https://requiemsapi.com/api_reference): Full API reference with authentication, rate limits, and error codes
- [All APIs](https://requiemsapi.com/apis): Browse the complete API catalog
- [Pricing](https://requiemsapi.com/pricing): Plans and request-based pricing
- [FAQ](https://requiemsapi.com/faq): Frequently asked questions
- [Error Codes](https://requiemsapi.com/error_codes): HTTP status codes and error handling
- [Changelog](https://requiemsapi.com/changelog): Release history and updates

## Authentication

All API requests require a `requiems-api-key` header. Get your key at https://requiemsapi.com/users/sign_up

## Base URL

https://requiems.xyz