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xAI API error

xAI API 422 Unprocessable Entity: what it means and how to fix it

Error message
422 Unprocessable Entity

Retry? Not statedLast verified 1 documented fix1 source

What it means

Returned on endpoints supporting POST when a field in the POST request body has an invalid format.

Causes

  • A field in the POST request body has an invalid format

How to fix it

  1. Fix 1.

    Check your request body against the API Reference.

More xAI API errors

All 18 xAI API errors

HTTP 422 at other providers

Compare 422 across providers

FAQ

What does the xAI API error "422 Unprocessable Entity" mean?

Returned on endpoints supporting POST when a field in the POST request body has an invalid format.

How do I fix xAI API "422 Unprocessable Entity"?

Check your request body against the API Reference.

Should I retry xAI API "422 Unprocessable Entity"?

Not stated. The official docs do not say whether this error is retryable.

Which other AI APIs return HTTP 422?

Per their official error docs: DeepSeek API (422 - Invalid Parameters), Groq API (422 Unprocessable Entity), Mistral API (422 Validation error), OpenAI API (422 UnprocessableEntityError), OpenRouter (422 unprocessable).

Sources

Last verified against 1 source: xAI API's official docs and official SDK repositories.

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