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
REST API with OpenAPI 3.1 specification
ChatGPT Custom GPT Actions integration
Claude / MCP tool integration
n8n workflow support
Asynchronous contract generation
Support for 68+ jurisdictions
All 5 contract types supported
Secure row-level access control
30-130 second generation time
Interactive API documentation
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
UK jurisdiction-aware contracts as standard, not US templates adapted for UK law
Integrates with ChatGPT, Claude, and n8n for seamless workflow automation
Asynchronous generation with no per-contract cost for API users
User data remains private and is not used for AI model training
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
LexPact
Meterdoor