AI API Provider Selector (model/providers.ts)

Determines the active AI API provider (Bedrock, Vertex, Foundry, or first-party) using environment variables. Reuse when configuring multi-provider AI applications.

// Source: https://github.com/chauncygu/collection-claude-code-source-code | License: Apache-2.0 | Copyright You must retain, in the Source form of any Derivative Works
// Provided via justclaw.it.com; keep this notice with the code.
import type { AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS } from '../../services/analytics/index.js'
import { isEnvTruthy } from '../envUtils.js'

export type APIProvider = 'firstParty' | 'bedrock' | 'vertex' | 'foundry'

export function getAPIProvider(): APIProvider {
  return isEnvTruthy(process.env.CLAUDE_CODE_USE_BEDROCK)
    ? 'bedrock'
    : isEnvTruthy(process.env.CLAUDE_CODE_USE_VERTEX)
      ? 'vertex'
      : isEnvTruthy(process.env.CLAUDE_CODE_USE_FOUNDRY)
        ? 'foundry'
        : 'firstParty'
}

export function getAPIProviderFor

... (truncated -- full source via MCP)