How We Bootstrapped EODHD APIs From a $10 Server to a Global Data Infrastructure

EODHD APIs grew from a $10 server side project to a 17-server global financial data infrastructure. The journey involved migrating from AWS due to high traffic costs, evolving from a monolithic PHP/Laravel application to a distributed system with MySQL, ClickHouse, Redis, and Node.js components. Key lessons include building fast and fixing later, implementing proper monitoring with Datadog and Sentry, and scheduling regular technical debt reduction periods. The architecture now handles real-time market data streaming, uses database-backed queues for processing, and maintains API consistency through JSON:API specification and OpenAPI documentation.