API marketplace

Search and explore over 50,000 internet and FM radio stations worldwide — a fast, clean wrapper over Radio Browser with automatic mirror failover. Find stations by name, country, language, genre tag or codec, sort by votes or popularity, fetch a single station by UUID with its stream URL, favicon and metadata, list the most-voted stations, browse all countries with station counts and discover the most popular genre/format tags. Every endpoint accepts input via the query string or the request body and returns lean, predictable JSON with the playable stream URL, bitrate, codec, tags and geo where available. Ideal for radio players, music and media apps, smart-speaker skills and directory features.

Uptime

100.0%

Latency

172ms

Subs

3,184

A complete exercise and workout database covering 870+ exercises: search and filter by target muscle, required equipment, category, difficulty level, force type and mechanic, fetch a single exercise with step-by-step instructions, primary and secondary muscles and demonstration images, pull a random exercise matching any filter, and read all available facet values to build filter UIs. Every endpoint accepts input via the query string or the request body and returns lean, predictable JSON. Pure server-side data (no third-party upstream), so responses are instant and always available. Ideal for fitness and gym apps, workout planners, personal-trainer tools and health platforms.

Uptime

100.0%

Latency

76ms

Subs

4,261

Search, filter and locate breweries worldwide — a fast, clean wrapper over Open Brewery DB covering thousands of breweries across the US and beyond. Filter by city, state, country, name, postal code or brewery type (micro, nano, regional, brewpub, large, bar, contract and more), sort results nearest-first from any latitude/longitude, autocomplete brewery names for typeahead, pull random breweries, fetch a single brewery by id and read aggregate counts. Every endpoint accepts input via the query string or the request body and returns lean, predictable JSON with normalized address, coordinates, phone and website fields. Ideal for beer and travel apps, store locators, maps and directory features.

Uptime

100.0%

Latency

652ms

Subs

4,832

A fast, fully-local astronomy and ephemeris engine: compute the equatorial (right-ascension/declination) and horizontal (azimuth/altitude) positions of the Sun, Moon and all planets for any observer and moment, get precise rise, set and transit (culmination) times for any body, read detailed lunar state (phase angle, named phase, illuminated fraction, apparent magnitude, geocentric distance, age since the last new moon and the dates of the next new/first-quarter/full/last-quarter moons), and list the exact equinoxes and solstices of any year. Every endpoint accepts input via the query string or the request body. Pure server-side computation (no third-party upstream), so responses are instant and always available. Ideal for weather and tide apps, astrophotography planners, calendars, solar/energy tools, Islamic and lunar calendars, and education.

Uptime

100.0%

Latency

82ms

Subs

3,300

Work with geohashes through a fast, fully-local API. Encode a latitude/longitude pair into a geohash at any precision (1–12), decode a geohash back to its centre coordinates with the exact bounding box and error margins, list the eight neighbouring geohash cells (north, north-east, east and so on), or get the bounding box, centre and dimensions of a cell. Geohashes turn coordinates into short sortable strings that are perfect for spatial indexing, proximity grouping and map tiling. Pure server-side computation with no third-party upstream, so responses are instant and the service is always available. Ideal for geospatial indexing and search, proximity and nearby queries, map tiles and clustering, IoT and fleet tracking, and location bucketing in databases.

Uptime

100.0%

Latency

75ms

Subs

3,542

Look up software vulnerabilities by their CVE identifier and get clean, structured details — title, description, CVSS score, severity and vector, CWE weakness types, affected vendors and products with version ranges, and reference links — plus search every CVE that affects a given vendor or product, and stream the most recently published CVEs. Sourced from the CIRCL CVE Search service over the official CVE Record 5.1 data and returned as tidy JSON through a fast, reliable API. Ideal for vulnerability management and SOC tooling, DevSecOps and SCA pipelines, security dashboards, compliance and asset-risk monitoring.

Uptime

88.9%

Latency

582ms

Subs

4,918

Hash and verify passwords with bcrypt, server-side. Generate a salted bcrypt hash at a cost factor you choose (4–14), check a plaintext password against an existing hash, or inspect a hash to read its bcrypt version, cost factor and salt. Fully compatible with bcrypt hashes from PHP ($2y$), Node, Python and others, so you can verify and migrate existing credentials. Pure server-side computation with no third-party upstream, so it is always available — and it offloads the deliberately CPU-intensive hashing work from your own servers. Ideal for adding password authentication, credential migration, auth tooling, testing and no-code backends.

Uptime

100.0%

Latency

104ms

Subs

4,308

Python package data from PyPI as clean JSON. Look up any package’s latest metadata — version, summary, license, repository, author, keywords, required Python version, dependencies, supported Python versions and total release count — browse its full version history with release dates and yanked flags, or get the details and distribution files for one specific version. Sourced live from the public Python Package Index and returned through a fast, reliable API. Ideal for developer dashboards and tooling, package and dependency analytics, security and supply-chain checks, CI/CD and documentation sites.

Uptime

100.0%

Latency

123ms

Subs

4,577

Add and test two-factor authentication without wrangling a crypto library. Generate a fresh base32 secret with a ready-to-scan otpauth URI, compute the current time-based one-time code (RFC 6238), verify a code submitted by a user with an adjustable drift window, or build an otpauth:// URI for any secret. Supports SHA-1, SHA-256 and SHA-512, 6 to 8 digits and a custom period, and is fully compatible with Google Authenticator, Authy, 1Password and other authenticator apps. Pure server-side computation with no third-party upstream, so responses are instant and the service is always available. Ideal for adding 2FA to apps, authentication tooling, QA and testing, and no-code automation.

Uptime

100.0%

Latency

79ms

Subs

3,707

Identify the manufacturer behind any MAC address. Look up a MAC or OUI to get the assigned vendor, its short name and the exact assignment block (/24, /28 or /36) using the official IEEE registry, search the registry by vendor name to find all of a company’s OUIs, or generate random valid test MAC addresses for a given vendor. MAC addresses are accepted in every common format — colon, hyphen, dot or bare hex — and bare OUIs work too. Built on the open IEEE OUI dataset (~57,000 assignments) and served entirely in-memory, so responses are instant and the service is always available. Ideal for network scanning and monitoring, IoT and device identification, security and asset inventory, NAC and devops tooling.

Uptime

100.0%

Latency

115ms

Subs

4,033

Parse any hostname or URL with the Public Suffix List. Split a domain into its subdomain, registrable domain (eTLD+1) and public suffix (eTLD), or fetch just the suffix or just the registrable domain. Handles full URLs, internationalized (punycode) domains, IP addresses, multi-level suffixes like co.uk and com.au, and — when you ask for it — private suffixes such as github.io and s3 buckets. Built on an always-current Public Suffix List and served entirely in-memory, so responses are instant and the service is always available. Ideal for cookie and domain scoping, analytics attribution, email and link validation, security and anti-abuse, and devops tooling.

Uptime

100.0%

Latency

85ms

Subs

4,096

Stopword lists and removal for 58 languages. Fetch the full stopword list for a language, see all supported languages with their word counts, check whether a single word is a stopword, or strip stopwords out of a block of text to get a clean keyword stream. Built on the open stopwords-iso dataset and served entirely in-memory, so responses are instant and the service is always available. Ideal for search indexing and relevance, NLP preprocessing and text mining, keyword extraction, tag generation and content tooling.

Uptime

100.0%

Latency

74ms

Subs

4,816

A clean reference for the world’s languages. Look up any language by its ISO 639-1 (two-letter) or ISO 639-2 (three-letter) code or by name, search by English or native name, list every language with an optional right-to-left filter, or group languages by family. Each entry includes the ISO codes, English and native names, language family, a right-to-left flag and a Wikipedia link. Built on the open ISO 639 dataset and served entirely in-memory, so responses are instant and the service is always available. Ideal for internationalization and localization, language pickers and selectors, content tagging and developer tooling.

Uptime

100.0%

Latency

76ms

Subs

3,602

Everything about npm packages in one clean API. Look up a package’s latest metadata — version, description, license, homepage, repository, author, keywords, dist-tags, dependencies and maintainers — list its full version history with release dates, pull download statistics for the last day, week, month or year, and search the registry across more than three million packages. Sourced live from the public npm registry and returned as tidy JSON through a fast, reliable API. Ideal for developer dashboards and tooling, package and dependency analytics, supply-chain and security checks, CI/CD and documentation sites.

Uptime

100.0%

Latency

419ms

Subs

4,485

A complete emoji database in one fast API. Search roughly 1,870 emojis by name, keyword, alias or tag, look up a single emoji by its alias (like rocket or :fire:) or by the emoji character itself, browse any of the nine Unicode categories, or get random emojis (optionally from a category). Every emoji comes with its name, category, aliases, search tags, Unicode code points and the version it was introduced in. Built on the open GitHub gemoji dataset and served entirely in-memory, so responses are instant and the service is always available. Ideal for chat and messaging apps, emoji pickers and search, social and content tools, games and fun widgets.

Uptime

100.0%

Latency

80ms

Subs

3,899

A worldwide airport database in one fast API: roughly 7,700 airports with IATA and ICAO codes, name, city, country, latitude and longitude, altitude and time zone. Look up any airport by its IATA (3-letter) or ICAO (4-letter) code, search by name, city or country, find the airports nearest to any coordinate within a radius (with great-circle distances, optionally only those with IATA codes), or list every airport in a country. Built on the open OpenFlights/OurAirports dataset and served entirely in-memory, so responses are instant and the service is always available. Ideal for travel and booking apps, flight trackers, logistics and routing, maps and location features.

Uptime

100.0%

Latency

82ms

Subs

4,396

Query and extract from JSON with JSONPath, server-side. Run any JSONPath expression — wildcards, recursive descent, array slices and filter expressions like [?(@.price>10)] — against a JSON document and get back the matched values, the normalized paths and JSON Pointers of every match, or just the first match. Filter expressions are evaluated in a safe sandbox with no access to globals, and inputs can be sent as a JSON POST body or a query parameter. Pure local compute with no third-party upstream, so responses are instant and the service is always available. Ideal for no-code and automation platforms, ETL and data pipelines, API integrations, testing and config extraction.

Uptime

100.0%

Latency

83ms

Subs

4,668

Search the world’s biomedical literature and retrieve clean article metadata and abstracts, powered by the U.S. National Library of Medicine’s PubMed via NCBI E-utilities. Search 35+ million citations by keyword with relevance or date sorting, look up one or more articles by PubMed id for title, authors, journal, publication date, volume/issue/pages, DOI and publication type, or fetch the full abstract text for a paper. Authoritative open data returned as tidy JSON through a fast, reliable API. Ideal for health-tech and clinical tools, pharma and life-sciences research, systematic reviews, reference managers and academic apps.

Uptime

100.0%

Latency

620ms

Subs

3,806

Convert, validate and tidy YAML through a fast, fully-local API. Turn YAML into JSON (including multi-document streams) or JSON into clean YAML with optional key sorting and custom indentation, validate a document and get the exact line and column of any syntax error with a context snippet, or reformat and normalize existing YAML. Inputs can be sent as a raw text/plain body, a JSON field or a query parameter; outputs are tidy JSON. Pure server-side compute with no third-party upstream, so responses are instant and the service is always available. Ideal for DevOps and CI/CD, configuration and infrastructure-as-code tooling, no-code platforms, editors and data pipelines.

Uptime

100.0%

Latency

89ms

Subs

3,276

Decades of historical weather for any location on Earth, from 1940 to the present. Pull daily records — temperature highs, lows and means, apparent temperature, precipitation, rain, snowfall, wind speed, gusts and direction — or an hourly series with temperature, humidity, precipitation, wind, pressure and cloud cover, or a period summary with mean temperature, the hottest and coldest day, total precipitation and wet-day counts. Global coverage from the ERA5 reanalysis archive via Open-Meteo, delivered as tidy JSON through a fast, reliable API. Ideal for agriculture and energy, insurance and risk, climate research, construction and travel planning.

Uptime

100.0%

Latency

789ms

Subs

4,972

Validate JSON against JSON Schema, server-side. Check any data against a schema (Draft-07 or 2020-12) and get a clear pass/fail plus a detailed list of every error with its instance path, failing keyword and message; verify that a schema itself is well-formed; or infer a starter JSON Schema automatically from a sample document, complete with detected formats like email, URI and date. Built on the battle-tested Ajv engine with full format validation. Every endpoint accepts GET (JSON-encoded parameters) or a JSON POST body and runs entirely locally with no third-party upstream, so responses are instant and the service is always available. Ideal for API request/response validation, form and data-entry checks, ETL and data-quality pipelines, no-code platforms and contract testing.

Uptime

100.0%

Latency

73ms

Subs

4,755

Economic and development data for every country, drawn from the World Bank Open Data catalogue. Pull a clean time series for any of roughly 1,500 indicators — GDP, population, inflation, life expectancy, CO₂ emissions, internet use and far more — for a chosen country and year range; list and filter countries by region or income level with capital and coordinates; look up a single country; and search the indicator catalogue to discover the codes you need. Authoritative open data returned as tidy JSON through a fast, reliable API. Ideal for fintech and research, economic dashboards and BI tools, data journalism, education and development analytics.

Uptime

100.0%

Latency

274ms

Subs

3,320

Run regular expressions server-side without the ReDoS risk. Test whether a pattern matches, extract all matches with their positions and capture groups (numbered and named), replace with a substitution pattern, or split text — all with the familiar JavaScript regex flags (g, i, m, s, u, y). Every evaluation runs in an isolated sandbox with a hard timeout, so a catastrophic-backtracking pattern can never hang your service; you get a clear timeout error instead. Inputs accept GET query parameters or a JSON POST body. Pure local compute with no third-party upstream, so responses are instant and the service is always available. Ideal for no-code and automation platforms, data-cleaning pipelines, form and input validation, log parsing and content tooling.

Uptime

100.0%

Latency

117ms

Subs

4,763

High and low tide predictions for thousands of US coastal stations, powered by NOAA CO-OPS. Search the station directory by state or name, pull full station metadata (coordinates and time zone), and get tide predictions as high/low events or an hourly height series for up to seven days, in feet or metres and against the datum of your choice (MLLW, MSL, MHHW and more). Delivered through a fast, reliable API with clear errors for invalid stations. Ideal for boating and sailing, fishing and surfing, ports and logistics, beach and tourism services and coastal planning.

Uptime

100.0%

Latency

660ms

Subs

3,221