claude-platform-on-aws changedbuild-with-claude/claude-platform-on-aws
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300300 <Tab title="Go">
301301 ```bash
302 go get github.com/anthropics/anthropic-sdk-go
302 go get github.com/anthropics/anthropic-sdk-go/v2
303303 ```
304304 </Tab>
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10881088The migration delta depends on which Bedrock integration you're coming from. The following table shows both the [current Bedrock integration](https://platform.claude.com/docs/en/build-with-claude/claude-in-amazon-bedrock) (Messages API at `bedrock-mantle.{region}.api.aws`) and the [legacy InvokeModel integration](https://platform.claude.com/docs/en/build-with-claude/claude-on-amazon-bedrock-legacy).
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1090| Aspect | From [Claude in Amazon Bedrock](https://platform.claude.com/docs/en/build-with-claude/claude-in-amazon-bedrock) | From [Amazon Bedrock (Opus 4.6 and earlier)](https://platform.claude.com/docs/en/build-with-claude/claude-on-amazon-bedrock-legacy) | To Claude Platform on AWS |
1091| -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
1092| **Base URL** | `bedrock-mantle.{region}.api.aws` | `bedrock-runtime.{region}.amazonaws.com` | `aws-external-anthropic.{region}.api.aws` |
1093| **API format** | Messages API at `/anthropic/v1/messages` | Bedrock Converse / InvokeModel | Claude API (`/v1/{endpoint}`) |
1094| **Model IDs** | anthropic.claude-haiku-4-5 | anthropic.claude-haiku-4-5-20251001-v1:0(with a `us.` or `global.` inference profile prefix) | claude-haiku-4-5 |
1095| **SDK client** | `AnthropicBedrockMantle` | `AnthropicBedrock` / Bedrock SDK | Platform-specific client (see [Install an SDK](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws#install-an-sdk)), in beta |
1096| **SDK package** | `anthropic[bedrock]` (typescript: `@anthropic-ai/bedrock-sdk`; csharp: `Anthropic.Bedrock`; go: `github.com/anthropics/anthropic-sdk-go/bedrock`; java: `com.anthropic:anthropic-java-bedrock`; php: `anthropic-ai/sdk`; ruby: `anthropic`) | `anthropic[bedrock]` (typescript: `@anthropic-ai/bedrock-sdk`; csharp: `Anthropic.Bedrock`; go: `github.com/anthropics/anthropic-sdk-go/bedrock`; java: `com.anthropic:anthropic-java-bedrock`; php: `anthropic-ai/sdk`; ruby: `anthropic`), or the AWS SDK | `anthropic[aws]` (typescript: `@anthropic-ai/aws-sdk`; csharp: `Anthropic.Aws`; go: `github.com/anthropics/anthropic-sdk-go/aws`; java: `com.anthropic:anthropic-java-aws`; php: `anthropic-ai/sdk`; ruby: `anthropic`) (see [Install an SDK](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws#install-an-sdk)) |
1097| **SigV4 service name** | `bedrock-mantle` | `bedrock` | `aws-external-anthropic` |
1098| **Streaming format** | SSE | AWS EventStream | SSE (same as Claude API) |
1099| **Workspace header** | Not applicable | Not applicable | `anthropic-workspace-id`, required on inference and resource requests |
1100| **Region availability** | See [Amazon Bedrock regions](https://docs.aws.amazon.com/bedrock/latest/userguide/bedrock-regions.html) | See [Amazon Bedrock regions](https://docs.aws.amazon.com/bedrock/latest/userguide/bedrock-regions.html) | All AWS commercial regions |
1101| **Anthropic organization** | None required | None required | New organization created at sign-up. Existing organizations can't be converted (see [Moving from an existing Anthropic organization](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws#moving-from-an-existing-anthropic-organization)) |
1090| Aspect | From [Claude in Amazon Bedrock](https://platform.claude.com/docs/en/build-with-claude/claude-in-amazon-bedrock) | From [Amazon Bedrock (Opus 4.6 and earlier)](https://platform.claude.com/docs/en/build-with-claude/claude-on-amazon-bedrock-legacy) | To Claude Platform on AWS |
1091| -------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
1092| **Base URL** | `bedrock-mantle.{region}.api.aws` | `bedrock-runtime.{region}.amazonaws.com` | `aws-external-anthropic.{region}.api.aws` |
1093| **API format** | Messages API at `/anthropic/v1/messages` | Bedrock Converse / InvokeModel | Claude API (`/v1/{endpoint}`) |
1094| **Model IDs** | anthropic.claude-haiku-4-5 | anthropic.claude-haiku-4-5-20251001-v1:0(with a `us.` or `global.` inference profile prefix) | claude-haiku-4-5 |
1095| **SDK client** | `AnthropicBedrockMantle` | `AnthropicBedrock` / Bedrock SDK | Platform-specific client (see [Install an SDK](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws#install-an-sdk)), in beta |
1096| **SDK package** | `anthropic[bedrock]` (typescript: `@anthropic-ai/bedrock-sdk`; csharp: `Anthropic.Bedrock`; go: `github.com/anthropics/anthropic-sdk-go/v2/bedrock`; java: `com.anthropic:anthropic-java-bedrock`; php: `anthropic-ai/sdk`; ruby: `anthropic`) | `anthropic[bedrock]` (typescript: `@anthropic-ai/bedrock-sdk`; csharp: `Anthropic.Bedrock`; go: `github.com/anthropics/anthropic-sdk-go/v2/bedrock`; java: `com.anthropic:anthropic-java-bedrock`; php: `anthropic-ai/sdk`; ruby: `anthropic`), or the AWS SDK | `anthropic[aws]` (typescript: `@anthropic-ai/aws-sdk`; csharp: `Anthropic.Aws`; go: `github.com/anthropics/anthropic-sdk-go/v2/aws`; java: `com.anthropic:anthropic-java-aws`; php: `anthropic-ai/sdk`; ruby: `anthropic`) (see [Install an SDK](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws#install-an-sdk)) |
1097| **SigV4 service name** | `bedrock-mantle` | `bedrock` | `aws-external-anthropic` |
1098| **Streaming format** | SSE | AWS EventStream | SSE (same as Claude API) |
1099| **Workspace header** | Not applicable | Not applicable | `anthropic-workspace-id`, required on inference and resource requests |
1100| **Region availability** | See [Amazon Bedrock regions](https://docs.aws.amazon.com/bedrock/latest/userguide/bedrock-regions.html) | See [Amazon Bedrock regions](https://docs.aws.amazon.com/bedrock/latest/userguide/bedrock-regions.html) | All AWS commercial regions |
1101| **Anthropic organization** | None required | None required | New organization created at sign-up. Existing organizations can't be converted (see [Moving from an existing Anthropic organization](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws#moving-from-an-existing-anthropic-organization)) |
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11031103If you're on the current Bedrock integration, the request body format is already the Messages API. The changes are the base URL, SigV4 service name, model IDs, and the added `anthropic-workspace-id` header. If you're on the legacy InvokeModel or Converse API, you'll also rewrite the request and response shapes to the Messages API format. See [Claude on Amazon Bedrock (Opus 4.6 and earlier)](https://platform.claude.com/docs/en/build-with-claude/claude-on-amazon-bedrock-legacy) for the request-shape mapping.
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