domain-availability-checker.underscoredone.com alternatives

Compared

Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.

The alternatives

• x402node Live x402

  x402node — precise, deterministic developer and data tools for AI agents. Chain data, parsing, crypto, conversion. Pay-per-call over x402, settled in USDC on Base.

  x402 paid API · 12 endpoints · check 90/100 · also does calendar & scheduling, x402 paid apis

• StableTravel Live x402

  Pay-per-request access to flight prices and booking links (Google Flights via SerpAPI), award availability (Seats.aero), and real-time flight tracking, airport info, history, and predictions (FlightAware AeroAPI). No au…

  x402 paid API · 12 endpoints · check 90/100 · also does calendar & scheduling, x402 paid apis

• Agent Restaurant Reservation API Live x402

  Agent-first API for searching and booking restaurant reservations via Resy, including reservation jobs that book hard-to-get tables the moment reservations open. Supports MPP (Tempo) and x402 (Base/Solana) wallet auth,…

  x402 paid API · 4 endpoints · check 89/100 · also does calendar & scheduling, x402 paid apis

• 2s.io Live x402

  Latest daily stock quote for a US-listed ticker. Returns the most recent completed trading session: open, high, low, close, volume, VWAP, and trade count, plus the change and percent change versus the prior session, and…

  x402 paid API · 12 endpoints · also does calendar & scheduling, x402 paid apis

• agent-market-one.vercel.app Live x402

  Upcoming Federal Reserve FOMC meetings, press conferences, speeches, testimony and releases with ET times, speakers and a market-moving flag.

  x402 paid API · 1 endpoint · also does calendar & scheduling, x402 paid apis

• agents.x402stock.xyz Live x402

  The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `…

  x402 paid API · 12 endpoints · also does calendar & scheduling, x402 paid apis

• alphapipeline-eu.onrender.com Live x402

  Real-time pre-trade signal: a probability snapshot of Hyperliquid's HIP-4 prediction markets - crypto price binaries, sports outcomes, tournament winners, Fed rate decisions, and more. Fields are parsed verbatim from Hy…

  x402 paid API · 12 endpoints · also does calendar & scheduling, x402 paid apis

• bazaar-catalog.vercel.app Live x402

  Convert Gregorian dates to Hijri (Umm al-Qura calendar) and back. Returns day/month/year, Arabic and English month names, and a formatted Arabic date string. Essential for agents handling Islamic events, Ramadan, Hajj s…

  x402 paid API · 2 endpoints · also does calendar & scheduling, x402 paid apis

• biotechcatalystsentinel.com Live x402

  PDUFA dates a company put in an SEC filing, not a calendar of every US-listed biotech. Each date is grounded in a verbatim filing quote, cited to its EDGAR accession, and scored against the FDA decision. Use when you ne…

  x402 paid API · 2 endpoints · also does calendar & scheduling, x402 paid apis

• byfaro.ai Live x402

  Single-signal check: is this website's pricing machine-readable for AI agents? Detects Offer schema with price/availability and pricing-transparency signals. Returns yes/no plus underlying checks and fixes. Useful for p…

  x402 paid API · 2 endpoints · also does calendar & scheduling, x402 paid apis

• cryptodataapi.com Live x402

  Issuer-aggregated daily spot ETF net flows for btc, eth or sol. (7 paid endpoints on cryptodataapi.com.)

  x402 paid API · 7 endpoints · also does calendar & scheduling, x402 paid apis

• earnings.lonestaroracle.xyz Live x402

  Earnings calendar — upcoming report dates, EPS and revenue estimates for up to 30 tickers

  x402 paid API · 1 endpoint · also does calendar & scheduling, x402 paid apis