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caywork vs mailbox.bot

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

caywork compared with mailbox.bot
Detailcaywork logo cayworkmailbox.bot logo mailbox.bot
What it doesA marketplace to discover, run, and publish AI agents Physical mailing address and postal mail API for AI agents
StageNot given Not given
FoundedNot given Not given
Based inTR US
Pricing modelPaid Freemium
PricingStarter Credits Pack: $5 one-time payment (100 credits, approximately 50 agent runs). Middle Credits Pack: $15 one-time payment (300 credits, approximately 150 agent runs). High Credits Pack: $45 one-time payment (900 credits, approximately 450 agent runs). New accounts receive 50 free credits. Outbound 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
Key features
  • Browse and discover AI agents from a curated marketplace
  • Run agents without coding or technical setup
  • Create and publish agents using a visual interface
  • One-time credit purchases with no monthly subscriptions
  • Free agent publishing with fees only on actual usage
  • Agents for marketing, development, research, and productivity tasks
  • Sandboxed environment for secure data handling
  • 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
What makes it different
  • Single marketplace eliminates hunting across multiple sites for AI agents
  • One-time purchases instead of subscriptions reduce friction and simplify access
  • Transparent and predictable fee structure designed for creator profitability
  • Agents that take actions and complete multi-step tasks, not just chat
  • Supports both non-developers and developers with flexible interface options
  • 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
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)2 no change since last check8 −14 (down) since last check
Trust Flow (Majestic)81
Citation Flow (Majestic)2426
Referring domains (Majestic)1576

6 details filled in for both companies.

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