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mailbox.bot vs Levain Labs

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 Levain Labs
Detailmailbox.bot logo mailbox.botLevain Labs logo Levain Labs
What it doesPhysical mailing address and postal mail API for AI agents The AI backend that gets better with every run
StageNot given Startup
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: 500 credits/month, one workspace. Team: $49/month, 3,000 to 80,000 credits/month (fee scales with credits chosen). Enterprise: Custom pricing with volume-discounted usage, customer workspaces via API, pooled credits with spend limits per customer.
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
  • Agent delivery via app, Slack, Claude, ChatGPT or events
  • Automatic agent versioning from underperforming runs
  • Stack review and consulting services
  • Organization API with webhooks and delivery history
  • SSO and SAML on Enterprise plan
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
  • Outcome-driven improvement: runs are scored against your goals and underperforming versions automatically improve
  • Hands-on engineering: optional stack reviews and agent builds for customers who want expert implementation
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)22 no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)10
Citation Flow (Majestic)260
Referring domains (Majestic)760

4 details filled in for both companies.

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