HTTP 200 OK

What this status code means

OK describes how the server processed the request and what the client should do next.

Who should act first

Interpret this code in protocol context before changing application logic.

What to check first

• Confirm response code matches endpoint contract.
• Check response body expectations (e.g., 200 vs 204).
• Validate async vs sync semantics (e.g., 202).

How it differs from similar codes

• HTTP 201 Created — full guide
• HTTP 204 No Content — full guide
• HTTP 206 Partial Content — full guide

Reference and next step

Specification: RFC 9110.

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