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认证代理允许沙盒代码调用外部 API（如 OpenAI、Anthropic、GitHub 等），而无需硬编码凭据。在沙盒上配置后，代理边车会自动使用您工作区的密钥，将认证头部注入匹配的出站请求中。
在创建引用这些密钥的沙盒之前，您必须在 LangSmith 工作区 设置中配置您的密钥（例如 OPENAI_API_KEY）。

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配置认证代理规则

创建沙盒时添加 proxy_config。每条规则指定：
字段描述
match_hosts要拦截的主机（支持通配符，如 *.github.com）
match_paths要匹配的路径（空 = 所有路径）
headers要注入的头部，每个头部包含 name、type 和 value
no_proxy完全绕过代理的主机（例如 localhost）

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头部类型

每个头部都有一个 type，用于控制其值的存储和显示方式：
类型描述
workspace_secret使用 {KEY} 语法引用工作区密钥。在推送时解析。
plaintext值按原样存储和返回。用于非敏感头部。
opaque仅写入。值在静态时加密，且永远不会通过 API 返回。

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单一 API 示例

创建一个沙盒，自动将 OpenAI API 密钥注入出站请求： 
curl -X POST "$LANGSMITH_ENDPOINT/api/v2/sandboxes/boxes" \
  -H "x-api-key: $LANGSMITH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "template_name": "python-sandbox",
    "name": "openai-sandbox",
    "wait_for_ready": true,
    "proxy_config": {
      "rules": [
        {
          "name": "openai-api",
          "match_hosts": ["api.openai.com"],
          "headers": [
            {
              "name": "Authorization",
              "type": "workspace_secret",
              "value": "Bearer {OPENAI_API_KEY}"
            }
          ]
        }
      ]
    }
  }'
现在，沙盒无需设置 API 密钥即可调用 OpenAI——代理会自动注入密钥。

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多 API 示例

添加多条规则，同时为多个服务进行认证： 
curl -X POST "$LANGSMITH_ENDPOINT/api/v2/sandboxes/boxes" \
  -H "x-api-key: $LANGSMITH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "template_name": "python-sandbox",
    "name": "multi-api-sandbox",
    "wait_for_ready": true,
    "proxy_config": {
      "rules": [
        {
          "name": "openai-api",
          "match_hosts": ["api.openai.com"],
          "headers": [
            {
              "name": "Authorization",
              "type": "workspace_secret",
              "value": "Bearer {OPENAI_API_KEY}"
            }
          ]
        },
        {
          "name": "anthropic-api",
          "match_hosts": ["api.anthropic.com"],
          "headers": [
            {
              "name": "x-api-key",
              "type": "workspace_secret",
              "value": "{ANTHROPIC_API_KEY}"
            },
            {
              "name": "anthropic-version",
              "type": "plaintext",
              "value": "2023-06-01"
            }
          ]
        },
        {
          "name": "github-api",
          "match_hosts": ["api.github.com"],
          "match_paths": ["/repos/*", "/user"],
          "headers": [
            {
              "name": "Authorization",
              "type": "workspace_secret",
              "value": "Bearer {GITHUB_TOKEN}"
            }
          ]
        }
      ],
      "no_proxy": ["localhost", "127.0.0.1"]
    }
  }'

​
通过 SDK 配置

from langsmith.sandbox import SandboxClient

client = SandboxClient()

client.create_sandbox(
    template_name="python-sandbox",
    name="openai-sandbox",
    proxy_config={
        "rules": [
            {
                "name": "openai-api",
                "match_hosts": ["api.openai.com"],
                "headers": [
                    {
                        "name": "Authorization",
                        "type": "workspace_secret",
                        "value": "Bearer {OPENAI_API_KEY}",
                    }
                ],
            }
        ]
    },
)
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