One API to look up U.S. federal GSA per-diem (travel lodging + M&IE) and HUD Fair Market Rent / Small Area FMR (rent by bedroom, with voucher payment-standard bands) for any ZIP code — joined in a single call. FY2026, public-domain data, clean JSON. Built for travel-nurse stipend, relocation/HR, and real-estate/Section-8 tools. Unofficial; not affiliated with GSA or HUD.

Structured registration data for any domain: registration and expiration dates, status, name servers, security delegation state and registrar entities. Real registry answers, no fragile text parsing.

The Domain Register Information API simplifies checking domain expiration dates. By entering a domain name, users quickly access the days remaining until expiration, making domain management and competitor tracking more efficient.

Structured data for 35 digital nomad and remote-work visa programs worldwide. Endpoints cover listing and filtering programs, eligibility matching by nationality and income, scored recommendations, residency pathways, tax detail and estimates, comparison, dataset statistics, and a changelog. All data is curated from government immigration sources and updated quarterly. No database, no runtime scraping — fast and deterministic responses.

Real-time, continuously updated dataset of newly registered and active business entities in Colorado, sourced from verified state open-data portals and normalized into structured API-ready JSON for lead generation, market research, and business intelligence.

Look up public holidays for 55 countries, calculate business day deadlines, find the next business day, export holidays to iCal, and more — all backed by versioned JSON data with no external dependencies at runtime. Covers 55 countries across Africa, Americas, Asia, Europe and Oceania for years 2024 to 2027.

Keep track of concerts and gigs easily with our API for all schedules and updates. Never miss your favorite artists again!

Access real-time event data for Baltic concerts effortlessly with our Event Data API.

Receive real-time notifications for concerts and updates with our API. Stay connected to the music scene instantly!

Validate transaction dates against Korea's public holidays, ensuring compliance and smooth fintech operations.

Streamline healthcare appointment scheduling by automatically considering Korea's public holidays for optimal patient management.

Retrieve precise domain age, registration, and expiration details with this API—ideal for ownership verification, research, and domain lifecycle insights.

Domain Data Registration API quickly access domain details such as availability, ownership, expiration and registrar information to make informed decisions in seconds.

Obtain detailed domain registration details seamlessly to verify ownership and ensure secure transactions.

Get up-to-date information on upcoming MMA fights across major promotions like UFC, Bellator, and ONE Championship.

The Domain Renewal Manager API makes it easy to check domain expiration dates.

Live 4D results for Malaysia and Singapore in real-time.

Calculate business days accurately while accessing global holiday data to optimize your workflows.

Ensure timely project deliveries with the SLA Deadline Calculator, using global holidays for precise deadline calculations.

The Registration Information Checker API efficiently confirms domain ownership information, enhancing online security, brand management, and domain research effortlessly.

The Formula One Race Schedule API provides current dates and timings for all races of the current F1 season.

Domain Date Reveal API delivers the exact domain age, registration and expiry dates—perfect for SEO, market research, and digital due diligence.

Retrieve detailed domain age, registration, and expiration information to assess credibility, trust level, and longevity in a straightforward JSON format.

The Web Register Information API offers a straightforward solution for verifying domain expiration dates.

Search and retrieve concert names, event dates, and locations easily.