HTTP 430 Unassigned

What this status code means

This status code value is currently unassigned in the IANA registry and should not be used in production APIs.

Who should act first

Client request or identity context is usually the first place to fix.

What to check first

• Capture exact request path, method, and headers.
• Verify authentication and authorization context.
• Validate payload schema and content type.

How it differs from similar codes

• HTTP 429 Too Many Requests — full guide
• HTTP 431 Request Header Fields Too Large — full guide

Reference and next step

Specification: RFC 9110.

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