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SandBase 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.

SandBase compared with mailbox.bot
DetailSandBase logo SandBasemailbox.bot logo mailbox.bot
What it doesOne API for models, APIs, and agent workflows Physical mailing address and postal mail API for AI agents
StageNot given Not given
FoundedNot given Not given
Based inSG US
Pricing modelFreemium Freemium
PricingFree tier with 100 free API calls daily and free sandboxes. Metered pay-per-call pricing with no subscription: from $0.0011 per API call (LinkedIn Company), language models from $0.225 input/$0.90 output per 1M tokens (DeepSeek flash), image generation from $0.0196 per image (Kling), video from $0.3 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
  • Access to 2,000+ language, image, video and audio models
  • Real-world data APIs including search, social media, web scraping
  • Single API key and shared balance for all capabilities
  • Build, schedule and monitor agent workflows
  • Integration with 25+ AI tools including Claude, Cursor, ChatGPT
  • CLI, HTTP, and MCP access methods
  • Free sandboxes for agent execution
  • Discovery and inspection of tools are free
  • Full execution tracing and cost tracking in Activities
  • Live discounts up to 50% on selected AI models
  • 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
  • One balance covers models, APIs, and runtimes from 100+ platforms
  • Pay only for what you use with no subscription required
  • Integrated across 25 AI tools and IDEs with one sign-in
  • Check prices and availability before any execution
  • Failed calls are not charged
  • 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)41 no change since last check22 no change since last check
Trust Flow (Majestic)121
Citation Flow (Majestic)3526
Referring domains (Majestic)17676

6 details filled in for both companies.

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