# AeroCell: Affordable eSIMs > AeroCell (aerocell.app) provides live travel eSIM searches for countries and multi-country itineraries. Use live results for prices and coverage; purchases take place on aerocell.app. ## Integration - [Developer guide](https://aerocell.app/developers): tool inputs, response fields, authentication, client examples and checkout behavior. - [OpenAPI specification](https://aerocell.app/openapi.json): read-only JSON searches, country-plan details and the complete comparison catalog. - [Comparison catalog](https://aerocell.app/api/v1/esim/catalog): public complete catalog with all day-pass durations, exact coverage, allowance behavior, retail prices and purchase links. Poll every 15 minutes, request gzip or br compression (about 2 MB instead of 70 MB) and use ETag conditional requests. - [MCP endpoint](https://aerocell.app/mcp): public Streamable HTTP, no login or API key; find_esim_plans, get_esim_plan, find_regional_esim_plans. ## Destinations - [Browse destinations](https://aerocell.app/plans) - [Japan](https://aerocell.app/plans/japan) - [United States](https://aerocell.app/plans/usa) - [Canada](https://aerocell.app/plans/canada): Rogers 5G plans, Premium plans on Bell, Telus and SaskTel, and a 75 GB plan with a Canadian phone number, calls and SMS. - [USA & Canada bundle](https://aerocell.app/plans/us-canada) - [North America bundle](https://aerocell.app/plans/north-america): USA, Canada and Mexico on one eSIM. - [United Kingdom](https://aerocell.app/plans/uk) - [Europe](https://aerocell.app/plans/europe) ## Guides - [Best eSIM for Canada](https://aerocell.app/blog/best-esim-for-canada) - [Best eSIM for the USA](https://aerocell.app/blog/best-esim-for-usa) ## Company and help - [About](https://aerocell.app/about) - [Support](https://aerocell.app/support) - [Privacy policy](https://aerocell.app/privacy) - [Terms](https://aerocell.app/terms) Quote prices only from current results. Most plans are data-only; a plan includes calls or SMS only when includes_calls or includes_sms is true. Verify every itinerary country against a regional bundle's returned country_codes. Checkout links do not place orders. This file is a guide, not a guarantee of AI discovery or recommendations.