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ReefAPI vs TradingCalendars.com

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

ReefAPI compared with TradingCalendars.com
DetailReefAPI logo ReefAPITradingCalendars.com logo TradingCalendars.com
What it doesOne key for 585+ data APIs across reviews, jobs, real estate, e-commerce, travel and finance Market holiday and status APIs for financial markets
StageNot given Not given
FoundedNot given Not given
Based inNot given SG
Pricing modelFreemium Freemium
PricingNot given Free: 10 API calls/day. Bank & Currency Holidays: $99/mo with 100,000 API calls/day. Exchange Trading & Settlement Holidays: $99/mo with 100,000 API calls/day. All-in-one: $169/mo with 100,000 API calls/day. 15% discount available on yearly plans.
Key features
  • 585+ production data APIs across 14 industries
  • Single API key and unified credit pool
  • Live playground for testing endpoints
  • Continuous API monitoring and reliability
  • MCP integration for AI assistants
  • Credits never expire
  • Failed calls are free (except verified SHEIN NOT_FOUND)
  • Private endpoints available on request
  • Data covers reviews, jobs, real estate, e-commerce, travel and finance
  • Supports payment by card or cryptocurrency
  • REST API with JSON and CSV formats
  • Live market open/close status for all exchanges
  • Historical and forward holiday dates
  • MCP server for AI agents
  • Dashboard CSV downloads
  • Coverage of 50 currencies and 61 exchanges
  • Daily data updates
  • Observed vs. original dates for settlement logic
  • Half-day and early close times flagged
  • Client libraries for Python, Java, MATLAB, Excel, Node.js, and R
What makes it different
  • One unified credit pool eliminates vendor lock-in and per-API subscriptions
  • Continuously monitored endpoints ensure reliability and prevent integration breakage
  • AI-ready with MCP integration requiring no glue code
  • New APIs shipped weekly with customer requests prioritized
  • Median support response time of 2 minutes
  • Data sourced from central banks, exchanges and official government sources, reviewed daily
  • Hosted MCP server allows AI assistants like Cursor and Claude to query calendars directly
  • No-code CSV downloads from dashboard for non-developers
  • Specialized for financial markets with 69 financial centres covered
  • Covers all holiday types affecting financial settlement
Community votes00
DR (Domain Rating by Ahrefs)5 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)20
Citation Flow (Majestic)330
Referring domains (Majestic)380

4 details filled in for both companies.

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