Function detectModelsProvider

src/proxy/router/models_route.js:10–16

(headers = {})

// Not traced: it is a metadata probe, not an LLM call.

function detectModelsProvider(headers = {}) {
  const lower = {};
  for (const [k, v] of Object.entries(headers || {})) lower[String(k).toLowerCase()] = v;
  // anthropic-version (and anthropic-beta) are sent by every Anthropic SDK request and by nothing else.
  if (lower['anthropic-version'] || lower['anthropic-beta']) return 'anthropic';
  return 'openai';
}

function buildModelsHandler({ anthropicProxy, openAIProxy, logger } = {}) {
  if (typeof anthropicProxy !== 'function' || typeof openAIProxy !== 'function') {