API Error Decoder – Because "500 Internal Server Error" Isn't Helpful
Let’s be honest: debugging HTTP errors is half the job, and half the frustration.
You’ve seen it a hundred times — 429 Too Many Requests, 401 Unauthorized, or the ever-popular 500 Internal Server Error. Great. But what now? What’s actually wrong? Is it your headers? Rate limits? Auth tokens? The API docs don’t always help, and Stack Overflow threads are hit or miss.
So I built API Error Decoder to cut through the noise.
It’s a simple tool that takes an HTTP status code or error message and gives you plain-English explanations — plus actionable steps to fix it. Not just definitions. Not just RFC quotes. Actual debugging advice: what to check, what commonly goes wrong, and how to test it.
For example:
- Got a
403? It might not be your API key — could be IP blocking, or missing scope in OAuth. - Seeing a
415 Unsupported Media Type? Let’s check yourContent-Typeheader and request body format.
It covers the usual suspects (4xx, 5xx) and some less common ones too, with real-world context from debugging APIs like Stripe, GitHub, AWS, and others.
There’s a free tier that gives you access to core error codes and basic troubleshooting steps. It’s enough to handle most day-to-day issues.
If you’re working heavily with APIs, there’s a $9/month Pro tier that adds:
- Deeper error breakdowns (including provider-specific quirks)
- Common curl examples for testing
- Offline access (via PWA)
- Ad-free experience
No credit card needed to try the free version. Just go in, type the error, and get clarity.
It’s not magic. It won’t fix your API calls for you. But it might save you 15 minutes of digging through docs or guessing what went wrong — and over a week, that adds up.
Check it out:
https://tool-api-error-decoder-f2piocpmr-orbitboyzz-4697s-projects.vercel.app
Feedback welcome. If it saves you a debug session, let me know — I’ll keep adding more errors and edge cases.
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