TradingCalendars.com vs Maison Cartouche

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

TradingCalendars.com compared with Maison Cartouche
Detail	TradingCalendars.com	Maison Cartouche
What it does	Market holiday and status APIs for financial markets	API for sending handwritten letters through AI agents and assistants
Stage	Not given	Not given
Founded	Not given	Not given
Based in	SG	DE
Pricing model	Freemium	Not given
Pricing	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.	Not given
Key features	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	Agent policy configuration with send limits and approval settings Relationship management with contact details restricted from API Moment tracking for birthdays and anniversaries Letter quote and pricing with customizable upgrades Real-time send tracking with multiple status states Address request generation with privacy protection Webhook event system with signature verification OAuth support for custom connectors like Claude
What makes it different	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	Same API primitives used in the app itself Hands-on compliance with frequency limits and approval workflows Model Context Protocol integration for AI assistants Hosted MCP server with no installation required
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	0	0
Referring domains (Majestic)	0	0

4 details filled in for both companies.

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