Express middleware for accepting payments in euros from humans via Stripe and USDC from AI agents via x402 on a single endpoint
Stage
Not given
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Founded
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Based in
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DE
Pricing model
Freemium
Freemium
Pricing
Free: 20,000 requests/month; Startup: $40/month with 200,000 requests/month; Pro: $1800/year with 1,000,000 requests/month; Enterprise: Custom pricing with unlimited requests/month.
Free core under Apache 2.0 license with both payment methods and Express integration. Pro Early Bird: 49 € including 19% VAT, one-time fee for 1 project, then 79 € (includes quotas, CSV payment log, webhook reconciliation, 12 months updates and support, delivery within 3 weeks or full refund). Team:
Key features
1,100+ airline logos in SVG, PNG, and JPG formats
38,000+ flight routes accessible by airport or airline
252 countries with flag images and regional data
Animated airline icons available as looping or play-once SVG
Dark mode optimized logos with white variants
Single endpoint accepts both euro payments via Stripe and USDC payments via x402
Time-limited access model for human users paying in euros
Per-request billing for AI agents using USDC on x402
Cryptographic payment verification without holding funds
Local demo mode without accounts or real payments
Open source core under Apache 2.0 license
Works with Base Sepolia testnet and Stripe test mode
What makes it different
Single API key for all aviation data including logos, routes, cities, and countries without stitching together multiple providers
Automatic daily updates when airlines rebrand or merge with zero maintenance required
Dead-simple REST integration based on standard IATA and ICAO codes without requiring an SDK
Air Waybill Lookup for cargo platforms without needing ICAO/IATA mapping
Multiple logo variants including tail, tail-3D, and transparent options for different UI needs
Unified payment solution for both human users and AI agents from a single endpoint
Funds go directly to your accounts; Meterdoor never touches the money
Open source core provides transparency and no ongoing licensing costs
Ready for production with AI agents despite their current low payment volume
Local testing without creating accounts or handling real money
logostream
Meterdoor