Antonym Finder is an antonym lookup API that finds words with opposite meanings along with their parts of speech across supported languages. Pass any term and an optional language code to receive an array of antonyms.

Article Ideas Generator creates article ideas and headline angles for any supplied topic. Pass a keyword up to 50 characters to receive a list of suggested titles and the total idea count.

ASCII85 Encoder encodes text into Base85 strings or decodes existing ASCII85 payloads back to plain text. Each request returns the converted output with original and processed character counts, while paid plans add custom formats and compression ratios.

ASN Lookup resolves any Autonomous System Number to its registered organization name and numeric identifier. Paid plans add the registry handle, country code, and announced IP range statistics.

Baby Name Generator suggests first and middle name combinations for boys and girls based on a selected gender. Paid plans can request multiple names at once and include child avatar images.

Background Remover is an image background removal API. Upload a photo or send its URL and it returns a PNG with the background made transparent, or replaced with a solid color you choose.

Balance Sheet is a stock balance sheet API that returns the statement of financial position for a US public company by ticker - assets, liabilities and shareholders' equity - straight from SEC filings: current assets, cash, receivables, current liabilities, equity and more. Paid plans add total a...

Barcode Generator creates downloadable barcode images from text or product codes in Code 128 or Code 39 formats. Each response provides a temporary image download link, file format, and expiration timestamp.

Barcode Reader decodes 1D barcodes from an uploaded image or an image URL, including EAN-13, EAN-8, UPC-A, UPC-E, Code 128, Code 39, Code 93, ITF, Codabar and GS1 DataBar. It returns the decoded value and the symbology. Paid plans add the GTIN, the barcode's orientation and corners, and every bar...

Base64 Encoder/Decoder encodes plain text into Base64 and decodes encoded strings back to readable characters. Submit any string with an encode or decode action to receive the converted output, the original input, and character length.

Benchmark Rate retrieves current risk-free reference rates across major currencies, covering SOFR, SONIA, ESTR, TONA, and SARON. Pass a rate symbol to receive the latest percentage rate, effective date, currency, region, and daily change direction.

Bible retrieves scripture passages and verses across nine public-domain translations, including the modern Berean Standard Bible (BSB), KJV, ASV, YLT and Darby. Supply a book, chapter, and optional verse number to get the text with testament classification, word count, and chapter totals.

BIMI Validator checks if a domain has a valid BIMI record published in DNS. BIMI enables domain owners to display verified logos in supported email clients.

Bingo Card Generator is a bingo API that creates customizable bingo cards with random numbers as JSON, with HTML rendering and downloadable PNG images on paid plans.

BIN Lookup is a BIN checker API: send the first 6 to 8 digits of a payment card and get the card brand, type (debit or credit), issuing bank and country of issuance back as JSON. Check incoming cards at checkout before you charge them.

Birth Chart calculates a tropical natal chart from a birth date, time and location. It returns the sun, moon and rising signs, the ascendant and midheaven, and each planet's sign, degree and retrograde flag. Paid plans add the 12 house cusps, each planet's house, the major aspects and the element...

Birthstones is a comprehensive lookup API for birthstone information. It returns detailed data about gemstones associated with each birth month, including the primary stone, alternate stones, colors, meanings, and zodiac associations.

Bitcoin Price fetches the current Bitcoin price, recent movement direction, and update timestamps in USD. Paid plans can quote across 172 currencies and add 24-hour volume, market cap, and hourly history.

Bluetooth Company Lookup allows you to identify Bluetooth device manufacturers by their Bluetooth SIG assigned company identifier. This helps identify the manufacturer of Bluetooth devices, beacons, and accessories.

BMI Calculator computes Body Mass Index along with ideal weight ranges, BMR (Basal Metabolic Rate), TDEE (Total Daily Energy Expenditure), calorie targets, and macronutrient recommendations for fitness and health applications.