Express middleware for accepting payments in euros from humans via Stripe and USDC from AI agents via x402 on a single endpoint
Stage
MVP
Not given
Founded
Not given
Not given
Based in
FI
DE
Pricing model
Freemium
Freemium
Pricing
Not given
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
Compose multiple APIs into one endpoint
API key protection
Model Context Protocol (MCP) integration
Dev, Test, and Prod deployment environments
Request logging
Browser-based deployment
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
AI Builder automatically creates endpoint drafts from natural language descriptions
Connect AI agents directly to manage APIs via Model Context Protocol
Deploy without writing backend code from the browser
Manage endpoints across Dev, Test, and Prod environments
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
Meterdoor