TariffTrust 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.

TariffTrust compared with Maison Cartouche
Detail	TariffTrust	Maison Cartouche
What it does	US tariff API with official sources for every duty and fee	API for sending handwritten letters through AI agents and assistants
Stage	Not given	Not given
Founded	Not given	Not given
Based in	FR	DE
Pricing model	Freemium	Not given
Pricing	Free plan: $0/month for calculator only. Essentials: $49/month or $37/month billed yearly ($441 yearly, save $147) with 5,000 workspace estimates, saved estimates, origin comparison, and 100 tracked products. Pro: $99/month or $74/month billed yearly ($891 yearly, save $297) with 10,000 estimates an	Not given
Key features	Batch estimates for up to 200 products counted once Saved estimates with replay and proof export Up to 120 API requests per minute	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	Each duty amount sourced to official dated documents Official sources checked every 6 hours for freshness Covers Sections 301, 232, 201, 338 and trade agreements Handles merchandise and harbor maintenance fees once per declaration	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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