Debugging is a crucial process for finding and resolving unexpected behavior, errors, or inconsistencies in code or program logic issues. Common API-related errors include syntax errors, logical errors, integration errors, performance issues, and misidentifying the root cause of a bug. Debugging challenges often involve wasted effort, misidentifying the problem, introducing new bugs while fixing an existing one, encountering a tangle of "spaghetti code," struggling to reproduce a bug consistently, and being unable to isolate the problem to a specific section of code. Effective debugging involves setting up the environment, identifying the problem, reproducing the issue, analyzing and troubleshooting, developing and applying fixes, testing and validating, deploying, and monitoring. In different contexts, such as frontend, backend, mobile, and distributed systems, debugging focuses on specific issues related to API consumption, server-side code, mobile applications, and interconnected devices. Best practices for effective debugging include implementing logging, using an API gateway, automating testing, communicating with the team, monitoring performance, and using breakpoints. Accelerating API debugging is possible with tools like Blackbird, which provides automated features such as API mocking, deployment instances, and debugging.