API Debugging Tips for Developers

API debugging is a core developer skill. These techniques help you find issues faster during integration and production incidents.

Inspect Responses

Always format JSON responses before reading them. Minified one-line JSON hides structure errors. Validate syntax to catch trailing commas and type mismatches before they reach production.

Check Authentication

Decode JWT tokens to verify claims, expiration, and issuer. A 401 often means expired exp or wrong aud claim. Compare request signatures with hash tools when debugging API auth.

Tool Workflow

JSON Formatter → URL Encoder → JWT Decoder → Timestamp Converter. WaiHub's browser-based tools chain together without leaving your workflow or uploading sensitive data.