Anthropic Claude API error
Anthropic API 404 not_found_error: what it means and how to fix it
404 not_found_errorRetry? Not statedLast verified 1 documented fix1 source
What it means
The requested resource was not found.
Causes
- Wrong endpoint path
- Invalid or nonexistent resource ID in the request URL
How to fix it
- Fix 1.
Check the endpoint path and any resource IDs in the request URL.
More Anthropic API errors
All 13 Anthropic API errors400 invalid_request_errorRetry? Not stated400 invalid_request_error (spend limit reached)Retry? Not stated401 authentication_errorRetry? Not stated402 billing_errorRetry? Not stated403 permission_errorRetry? Not stated409 conflict_errorRetry? Yes413 request_too_largeRetry? Not stated429 rate_limit_errorRetry? Yes
HTTP 404 at other providers
Compare 404 across providers404 ResourceNotFoundExceptionRetry? NoAmazon Bedrock404 FTUFormNotFilledRetry? Not statedAmazon Bedrock404 Not FoundRetry? Not statedAzure OpenAI404 Not FoundRetry? Not statedCohere API404 not_foundRetry? NoGemini API404 model_not_foundRetry? NoGemini API404 NOT_FOUNDRetry? NoGemini API404 Not FoundRetry? Not statedGroq API404 Not foundRetry? Not statedMistral API404 NotFoundErrorRetry? Not statedOpenAI API404 image_not_foundRetry? Not statedOpenRouter404 not_foundRetry? Not statedOpenRouter
FAQ
What does the Anthropic API error "404 not_found_error" mean?
The requested resource was not found.
How do I fix Anthropic API "404 not_found_error"?
Check the endpoint path and any resource IDs in the request URL.
Should I retry Anthropic API "404 not_found_error"?
Not stated. The official docs do not say whether this error is retryable.
Which other AI APIs return HTTP 404?
Per their official error docs: Amazon Bedrock (404 ResourceNotFoundException; 404 FTUFormNotFilled), Azure OpenAI (404 Not Found), Cohere API (404 Not Found), Gemini API (404 not_found; 404 model_not_found; 404 NOT_FOUND), Groq API (404 Not Found), Mistral API (404 Not found), OpenAI API (404 NotFoundError), OpenRouter (404 image_not_found; 404 not_found), Vertex AI (404 NOT_FOUND), xAI API (404 Not Found).
Sources
Last verified against 1 source: Anthropic API's official docs and official SDK repositories.
- platform.claude.comhttps://platform.claude.com/docs/en/api/errors
Newsletter
Know when the APIs change
One email per week. New model releases, API changes, what broke, and how developers are working around it.