844 pages for lang.

prompting-claude-sonnet-5-5 Claude Developer Platform · in the page build-with-claude/prompt-engineering/prompting-claude-sonnet-5-5 …what is allowed, required, or charged. First, check your prompt for language that discourages tool use, such as "only use tools when strictly necessary" or "minimize tool calls," and remove it. Then… refusals-and-fallback Claude Developer Platform · in the page build-with-claude/refusals-and-fallback …ests of a conversation. <CodeGroup exclude="shell"> <CodeGroupItem language="cURL"> The refusal-fallback middleware is part of the Claude SDK, so a cURL request can't use it. To fall back withi… search-results Claude Developer Platform · in the page build-with-claude/search-results …le: Knowledge base tool <CodeGroup exclude="shell"> <CodeGroupItem language="cURL"> The tool-calling flow needs search logic in your application, which needs more than a single shell command. U… skills-guide Claude Developer Platform · in the page build-with-claude/skills-guide …file** <CodeGroup exclude="shell:cURL, shell:CLI"> <CodeGroupItem language="cURL"> This workflow needs more logic than a single shell command. Use the [Claude SDK](https://platform.claude.com/… structured-outputs Claude Developer Platform · in the page build-with-claude/structured-outputs …Describe the structure you want as a JSON schema or as a type in your language. The schema follows JSON Schema, with some [limitations](https://platform.claude.com/docs/en/build-with-claude/structured… thinking-steering-and-cost Claude Developer Platform · in the page build-with-claude/thinking-steering-and-cost …l posture, but you can also shape that behavior directly with natural-language guidance, either globally in the system prompt or for individual messages in the user turn. Use the two levers together… thinking-tool-workflows Claude Developer Platform · in the page build-with-claude/thinking-tool-workflows …<CodeGroup exclude="shell:cURL, shell:CLI"> <CodeGroupItem language="cURL"> This workflow needs more logic than a single shell command. Use the [Claude SDK](https://platform.claude.… vision-coordinates Claude Developer Platform · in the page build-with-claude/vision-coordinates …de resizes an image to: <CodeGroup exclude="shell"> <CodeGroupItem language="cURL"> Compute this size in code. </CodeGroupItem> <CodeGroupItem language="CLI"> Compute this size in code… apply Claude Developer Platform · in the page cli-sdks-libraries/cli/apply …> <File filename="environments/cloud.yaml"> ```yaml # yaml-language-server: $schema=https://platform.claude.com/schemas/ant/beta/environment.json name: review-env description: Cloud… apple-foundation-models Claude Developer Platform · in the page cli-sdks-libraries/libraries/apple-foundation-models …dels) is a Swift package that makes Claude available as a server-side language model in Apple's [Foundation Models](https://developer.apple.com/documentation/foundationmodels) framework. The package c… openai-sdk Claude Developer Platform · in the page cli-sdks-libraries/libraries/openai-sdk ….message().content().orElse("")); } } ``` <CodeGroupItem language="PHP"> OpenAI has no official PHP SDK. To use Claude from PHP, use the [Claude SDK for PHP](https://platform.claude.c… middleware Claude Developer Platform · in the page cli-sdks-libraries/middleware …aude/refusals-and-fallback#client-side-fallback) covers setup and per-language examples. overview Claude Developer Platform · in the page cli-sdks-libraries/overview …Official tools for building with the Claude API: client SDKs in seven languages, the ant CLI, and framework-specific libraries." --- Anthropic provides three kinds of official tooling for building wi… csharp Claude Developer Platform · in the page cli-sdks-libraries/sdks/csharp …a [`with` expression](https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/operators/with-expression) to construct the modified options. The `WithOptions` method does not affect the ori… go Claude Developer Platform · in the page cli-sdks-libraries/sdks/go …est fields The Anthropic library uses the [`omitzero`](https://tip.golang.org/doc/go1.24#encodingjsonpkgencodingjson) semantics from the Go 1.24+ `encoding/json` release for request fields. Required… java Claude Developer Platform · in the page cli-sdks-libraries/sdks/java …ed exceptions are widely considered a mistake in the Java programming language. In fact, they were omitted from Kotlin for this reason. Checked exceptions: * Are verbose to handle * Enco… get-started Claude Developer Platform · in the page get-started …} java { toolchain { languageVersion = JavaLanguageVersion.of(25) } } dependencies { implement… intro Claude Developer Platform · in the page intro …gent AI platform built by Anthropic. Claude excels at tasks involving language, reasoning, analysis, coding, and more. --- <Note> Looking to chat with Claude? Visit [claude.ai](https://claude.ai).… inference-hooks-endpoint Claude Developer Platform · in the page manage-claude/inference-hooks-endpoint …TPS service rather than a one-shot request. Each sample uses only the language's standard library; the [Standard Webhooks](https://www.standardwebhooks.com/) project also publishes verification librar… opentelemetry Claude Developer Platform · in the page manage-claude/opentelemetry …ity platform for the new shape of software. </Card> <Card title="Langfuse" image="https://platform.claude.com/docs/images/partner-logos/langfuse.svg" imageDark="https://platform.claude.com/docs/i… sdk Claude Developer Platform · in the page manage-claude/opentelemetry/sdk …ter that points to your observability platform. For the setup in your language, see the OpenTelemetry docs on [Python exporters](https://opentelemetry.io/docs/languages/python/exporters/), [TypeScript… plugins-api Claude Developer Platform · in the page manage-claude/plugins-api …r (a background command that keeps running during a session), an LSP (Language Server Protocol) server, or settings the plugin applies to the member's app, or contains a skill, command, or any other M… wif-admin-api Claude Developer Platform · in the page manage-claude/wif-admin-api …s the same settings as explicit constructor arguments, shown for each language in [Construct the SDK client](https://platform.claude.com/docs/en/manage-claude/workload-identity-federation#construct-th… Replace NODE_UID with the node's UID: Claude Developer Platform · in the page manage-claude/wif-providers/spiffe …der. The file path is the simplest integration and works in every SDK language. The token-provider path removes the sidecar but requires a SPIFFE Workload API client in your application's language. <… workload-identity-federation Claude Developer Platform · in the page manage-claude/workload-identity-federation …b shows the underlying HTTP exchange for shell scripts, debugging, or languages without SDK support. ### Construct the SDK client You can construct the client with explicit credentials or with no ar… agent-setup Claude Developer Platform · in the page managed-agents/agent-setup …all-the-cli) covers installation and client setup. <CodeGroup defaultLanguage="CLI"> ```bash cURL curl -fsSL https://api.anthropic.com/v1/agents \ -H "x-api-key: $ANTHROPIC_API_KEY" \ -H… choosing-an-environment Claude Developer Platform · in the page managed-agents/choosing-an-environment …resh Linux container on Anthropic-managed infrastructure, with common languages, databases, and utilities already installed. You choose its network rules and any extra packages to install. * **Self-ho… cloud-sandboxes-reference Claude Developer Platform · in the page managed-agents/cloud-sandboxes-reference …ture. They come pre-installed with a comprehensive set of programming languages, databases, and utilities. The agent can use these immediately without any installation steps. These specifications app… environments Claude Developer Platform · in the page managed-agents/environments …hoosing-an-environment). ## Create an environment <CodeGroup defaultLanguage="CLI"> ```bash cURL curl -fsS https://api.anthropic.com/v1/environments \ -H "x-api-key: $ANTHROPIC_API_KEY" \… event-deltas Claude Developer Platform · in the page managed-agents/event-deltas …ookkeeping for you. The manual pattern in this section works in every language when you need custom bookkeeping. Apply it to the generated event types. In the manual pattern, hold preview text in a t… events-and-streaming Claude Developer Platform · in the page managed-agents/events-and-streaming …y list. <CodeGroup exclude="shell:cURL, shell:CLI"> <CodeGroupItem language="cURL"> This workflow needs more logic than a single shell command. Use the [Claude SDK](https://platform.claude.com/… github Claude Developer Platform · in the page managed-agents/github …holds the server URL but no authentication token: <CodeGroup defaultLanguage="CLI"> ```bash cURL curl -fsS https://api.anthropic.com/v1/agents \ -H "x-api-key: $ANTHROPIC_API_KEY" \ -H "… mcp-connector Claude Developer Platform · in the page managed-agents/mcp-connector …st match the server's `name` (csharp, go: `Name`). <CodeGroup defaultLanguage="CLI"> ```bash cURL curl -sS --fail-with-body https://api.anthropic.com/v1/agents \ -H "x-api-key: $ANTHROPIC_API… memory Claude Developer Platform · in the page managed-agents/memory …to the agent, telling it what the store contains. <CodeGroup defaultLanguage="CLI"> ```bash cURL curl -s https://api.anthropic.com/v1/memory_stores \ -H "x-api-key: $ANTHROPIC_API_KEY" \… migration Claude Developer Platform · in the page managed-agents/migration …gents): <CodeGroup exclude="shell:cURL, shell:CLI"> <CodeGroupItem language="cURL"> This workflow needs more logic than a single shell command. Use the [Claude SDK](https://platform.claude.com/… multiagent-orchestration Claude Developer Platform · in the page managed-agents/multiagent-orchestration …block to list the agents that it can delegate to: <CodeGroup defaultLanguage="CLI"> ```bash cURL curl -fsS https://api.anthropic.com/v1/agents \ -H "x-api-key: $ANTHROPIC_API_KEY" \ -H "… permission-policies Claude Developer Platform · in the page managed-agents/permission-policies …y`; csharp, go: `DefaultConfig.PermissionPolicy`): <CodeGroup defaultLanguage="CLI"> ```bash cURL curl -fsSL https://api.anthropic.com/v1/agents \ -H "x-api-key: $ANTHROPIC_API_KEY" \ -H… quickstart Claude Developer Platform · in the page managed-agents/quickstart …the model, system prompt, and available tools. <CodeGroup defaultLanguage="CLI"> <CodeGroupItem> ```bash cURL curl -sS --fail-with-body https://api.anthropic.com/v1/agents \… scheduled-deployments Claude Developer Platform · in the page managed-agents/scheduled-deployments …s#managed-policies) grants `iam:PassRole`. </Note> <CodeGroup defaultLanguage="CLI"> ```bash cURL curl --fail-with-body -sS "https://api.anthropic.com/v1/deployments?beta=true" \ -H "x-api-ke… secure-deployment Claude Developer Platform · in the page managed-agents/secure-deployment …allows one host, the help center, for `web_fetch`: <CodeGroup defaultLanguage="CLI"> ```bash cURL curl -fsS https://api.anthropic.com/v1/environments \ -H "x-api-key: $ANTHROPIC_API_KEY" \… spawn.sh: called once per claimed work item Claude Developer Platform · in the page managed-agents/self-hosted-sandboxes …> New > Self-hosted** Or through the API: <CodeGroup defaultLanguage="CLI"> ```bash cURL curl -sS --fail-with-body https://api.anthropic.com/v1/environments \ -H "x-api-k… self-hosted-sandboxes-custom-tools Claude Developer Platform · in the page managed-agents/self-hosted-sandboxes-custom-tools …ctx), getOrderStatus] }).run(); ``` <CodeGroupItem language="C#"> The C# SDK does not have `EnvironmentWorker`. To answer custom tool calls from your own code, send each res… self-hosted-sandboxes-memory Claude Developer Platform · in the page managed-agents/self-hosted-sandboxes-memory …00, memorySyncDeletions: "log_only" }); ``` <CodeGroupItem language="C#"> The C# SDK does not have `EnvironmentWorker`. </CodeGroupItem> ```go Go worker := environments.NewEnviro… self-hosted-sandboxes-reference Claude Developer Platform · in the page managed-agents/self-hosted-sandboxes-reference …x) => [betaBashTool(ctx), myCustomTool] }); ``` <CodeGroupItem language="C#"> The C# SDK does not have `EnvironmentWorker`. To answer custom tool calls from your own code, send each result… self-hosted-sandboxes-workers Claude Developer Platform · in the page managed-agents/self-hosted-sandboxes-workers …e", signal: controller.signal }).run(); ``` <CodeGroupItem language="C#"> The C# SDK does not have `EnvironmentWorker`. Run the `ant` CLI worker instead: `ant beta:worker poll --workdir… session-threads Claude Developer Platform · in the page managed-agents/session-threads …rrives. <CodeGroup exclude="shell:cURL, shell:CLI"> <CodeGroupItem language="cURL"> This workflow needs more logic than a single shell command. Use the [Claude SDK](https://platform.claude.com/… skills Claude Developer Platform · in the page managed-agents/skills …d doesn't need to be unique within your workspace. <CodeGroup defaultLanguage="CLI"> ```bash cURL curl -X POST "https://api.anthropic.com/v1/skills" \ -H "x-api-key: $ANTHROPIC_API_KEY" \… tools Claude Developer Platform · in the page managed-agents/tools …mple enables the toolset and disables `web_fetch`: <CodeGroup defaultLanguage="CLI"> ```bash cURL curl -fsSL https://api.anthropic.com/v1/agents \ -H "x-api-key: $ANTHROPIC_API_KEY" \ -H… tools-web-restrictions Claude Developer Platform · in the page managed-agents/tools-web-restrictions …choes the `configs` (csharp, go: `Configs`) array. <CodeGroup defaultLanguage="CLI"> ```bash cURL curl -fsSL https://api.anthropic.com/v1/agents \ -H "x-api-key: $ANTHROPIC_API_KEY" \ -H… vaults Claude Developer Platform · in the page managed-agents/vaults …e filename="vaults/service_accounts.yaml"> ```yaml # yaml-language-server: $schema=https://platform.claude.com/schemas/ant/beta/vault.json display_name: Service accounts ```…