Function getAnthropicApiKeyWithSource

src/utils/auth.ts:226–348

(
  opts: { skipRetrievingKeyFromApiKeyHelper?: boolean } = {},
)

}

export function getAnthropicApiKeyWithSource(
  opts: { skipRetrievingKeyFromApiKeyHelper?: boolean } = {},
): {
  key: null | string
  source: ApiKeySource
} {
  // --bare: hermetic auth. Only ANTHROPIC_API_KEY env or apiKeyHelper from
  // the --settings flag. Never touches keychain, config file, or approval
  // lists. 3P (Bedrock/Vertex/Foundry) uses provider creds, not this path.
  if (isBareMode()) {
    if (process.env.ANTHROPIC_API_KEY) {
      return { key: process.env.ANTHROPIC_API_KEY, source: 'ANTHROPIC_API_KEY' }
    }
    if (getConfiguredApiKeyHelper()) {
      return {
        key: opts.skipRetrievingKeyFromApiKeyHelper
          ? null
          : getApiKeyFromApiKeyHelperCached(),
        source: 'apiKeyHelper',
      }
    }
    return { key: null, source: 'none' }
  }

  // On homespace, don't use ANTHROPIC_API_KEY (use Console key instead)
  // https://anthropic.slack.com/archives/C08428WSLKV/p1747331773214779
  const apiKeyEnv = isRunningOnHomespace()
    ? undefined
    : process.env.ANTHROPIC_API_KEY

  // Always check for direct environment variable when the user ran claude --print.
  // This is useful for CI, etc.
  if (preferThirdPartyAuthentication() && apiKeyEnv) {
    return {
      key: apiKeyEnv,
      source: 'ANTHROPIC_API_KEY',
    }
  }

  if (isEnvTruthy(process.env.CI) || process.env.NODE_ENV === 'test') {
    // Check for API key from file descriptor first
    const apiKeyFromFd = getApiKeyFromFileDescriptor()
    if (apiKeyFromFd) {
      return {
        key: apiKeyFromFd,
        source: 'ANTHROPIC_API_KEY',
      }
    }

    if (
      !apiKeyEnv &&
      !process.env.CLAUDE_CODE_OAUTH_TOKEN &&
      !process.env.CLAUDE_CODE_OAUTH_TOKEN_FILE_DESCRIPTOR
    ) {
      throw new Error(
        'ANTHROPIC_API_KEY or CLAUDE_CODE_OAUTH_TOKEN env var is required',
      )
    }