API Auth Header Builder

Draft a local preview of Basic, Bearer or API-key request authentication without sending or executing the request.

FREE

Credentials stay in this browser and are excluded from saved cases.

Generated headers, query parameters and cURL are a preview only; no request is sent or executed.

Authentication configuration

Base URLAuthentication modeBearer token

Complete the authentication fields to generate headers, query parameters and cURL.

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Practical usage guide

Draft a local preview of Basic, Bearer or API-key request authentication without sending or executing the request.

Use representative, complete evidence and include the context needed to distinguish a real issue from an expected variation.

Prioritize concrete findings, corroborate them against the source and rerun the analysis after correcting the input.

Check the result against the API contract, authentication scheme and target environment before integration testing.

Use representative samples without passwords, tokens, personal data or production secrets. Keep the smallest input needed to reproduce the behavior you are reviewing.
Confirm the result in the authorized target environment when runtime versions, namespaces, extensions, permissions or system configuration can change the outcome.
Record the source, assumptions, tool settings and expected result so another reviewer can reproduce the check and distinguish verified facts from recommendations.