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mailbox.bot vs Palace

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

mailbox.bot compared with Palace
Detailmailbox.bot logo mailbox.botPalace logo Palace
What it doesPhysical mailing address and postal mail API for AI agents Self-hosted memory for AI coding agents
StageNot given Not given
FoundedNot given Not given
Based inUS Not given
Pricing modelFreemium Not given
PricingOutbound mail: $0/month base, USPS First-Class Mail (1-page letter) $2.00, USPS Priority Mail flat-rate envelope $15.00, USPS Certified Mail $20.00, Certified with Electronic Return Receipt $24.00. Printing: B&W $0.40/page, Color $0.70/page. Mailing address for AI agent: $15/month, includes 30 stand Free / Open Core (€0, unlimited for solo developers). Team (€1,490/year or €104/month for 3 months then €149/month, up to 10 users). Growth (€3,490/year or €244/month for 3 months then €349/month, up to 30 users). Enterprise (custom pricing from €8,000+/year with custom seat counts beyond 30).
Key features
  • Send outbound mail via API, MCP, or dashboard
  • Certified mail with proof of delivery
  • Inbound mail scanning and OCR
  • REST API and MCP server integration
  • Webhook notifications with HMAC-SHA256 signing
  • Batch mail and postcards from templates
  • Human-in-the-loop approval gates for mail
  • Multi-channel notifications via email, SMS, Slack, Discord
  • Fulfillment photos and tracking for all mail
Not given
What makes it different
  • Real physical street address for autonomous agents to receive mail and packages
  • Seamless API integration with AI agent frameworks like OpenClaw, Hermes, LangChain
  • Inbound mail becomes structured agentic context via OCR and webhooks
  • Complete tracking from document submission through delivery confirmation
  • No credit card required to start using the service
  • Fully offline licensing with Ed25519 cryptographic verification
  • Works with any MCP-compatible agent including Cursor, Claude Code, and Codex
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)8 −14 (down) since last check5 no change since last check
Trust Flow (Majestic)13
Citation Flow (Majestic)2624
Referring domains (Majestic)7614

3 details filled in for both companies.

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