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Maison Cartouche vs x402serps

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

Maison Cartouche compared with x402serps
DetailMaison Cartouche logo Maison Cartouchex402serps logo x402serps
What it doesAPI for sending handwritten letters through AI agents and assistants Pay-per-call web search API for AI agents
StageNot given Not given
FoundedNot given Not given
Based inDE GB
Pricing modelNot given Freemium
PricingNot given Web search: $0.004/10 results; News search: $0.004/10 results; URL extract: $0.003/URL; Search + extract: $0.02; Deep research: $0.08; AI visibility check: $0.10; Competitor report: $0.30; Lead finder: $0.25; SEO audit: $0.20; News digest: $0.05; Cited answer: $0.02; Crawl site: $0.002/page; Map sit
Key features
  • 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
  • Web search with up to 100 results and date filtering
  • News search with filtering options
  • URL extraction to clean markdown
  • Deep research with cited briefs
  • Competitor report with rankings and share of voice
  • Lead finder for local businesses
  • SEO audit with page analysis
  • JavaScript, Python, and LangChain integrations
  • OpenAI and Claude function calling support
  • MCP server with 19 tools
What makes it different
  • 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
  • No account or subscription required for x402 payments
  • Pay-per-call pricing with no minimum
  • Cryptocurrency payment option using USDC
  • Result caching reduces cost for credit key users
  • Free trial with 25 calls per network
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)027
Referring domains (Majestic)011

4 details filled in for both companies.

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