Debug API requests with sharper feedback.

Paste a messy HTTP request, curl command, headers, or body. The tool reviews it like an API support engineer looking for what is likely going wrong.

Before you paste: Avoid submitting passwords, production secrets, sensitive personal data, or confidential company data. API keys, tokens, session cookies, and internal URLs may be processed by third-party AI services and should only be included if you understand that risk.

HTTP method

Target URL

Key-value parameters Authorization method and credentials Key-value headers Request body Relevant documentation

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Important notes

Best-effort analysis: Results are AI-generated and may be incomplete, incorrect, or based on missing context. Verify any recommendation before using it in production systems.

Third-party processing: Submitted request text may be sent to external AI providers to generate debugging feedback. Do not submit information you are not allowed to share with third-party services.

No request execution: This prototype analyzes the text you provide. It does not intentionally execute your HTTP request.

Independent tool: Why Is My Request Failing? is an independent debugging aid. It is not affiliated with, endorsed by, or an official support channel for any API provider referenced in an analyzed request.