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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 14 Oct 2026
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errors changedapi/errors

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7373## SDK error types
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75The official SDK raises typed exceptions for these errors instead of returning raw JSON. For example, a 404 surfaces as `anthropic.NotFoundError` (python; typescript: `Anthropic.NotFoundError`; ruby: `Anthropic::Errors::NotFoundError`; java: `com.anthropic.errors.NotFoundException`; csharp: `AnthropicNotFoundException`; php: `Anthropic\Core\Exceptions\NotFoundException`; go: `*anthropic.Error`). The Go SDK has one error type for every status, `*anthropic.Error`: branch on `StatusCode`. Catch the SDK's typed classes rather than string-matching error messages, handling the most specific classes first. Your SDK's page documents the full exception hierarchy:
75The official SDK raises typed exceptions for these errors instead of returning raw JSON. For example, a 404 surfaces as `anthropic.NotFoundError` (typescript: `Anthropic.NotFoundError`; ruby: `Anthropic::Errors::NotFoundError`; java: `com.anthropic.errors.NotFoundException`; csharp: `AnthropicNotFoundException`; php: `Anthropic\Core\Exceptions\NotFoundException`; go: `*anthropic.Error`). The Go SDK has one error type for every status, `*anthropic.Error`: branch on `StatusCode`. Catch the SDK's typed classes rather than string-matching error messages, handling the most specific classes first. Your SDK's page documents the full exception hierarchy:
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7777* [Python](https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/python#handling-errors) · [TypeScript](https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/typescript#handling-errors) · [C#](https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/csharp#error-handling) · [Go](https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/go#error-handling) · [Java](https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/java#error-handling) · [PHP](https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/php#error-handling) · [Ruby](https://platform.claude.com/docs/en/cli-sdks-libraries/sdks/ruby#handling-errors)
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