first commit

core/providers/anthropic/count_tokens.go

@@ -0,0 +1,34 @@
+package anthropic
+
+import (
+	"github.com/maximhq/bifrost/core/schemas"
+)
+
+// ToBifrostCountTokensResponse converts an Anthropic count tokens response to Bifrost format
+func (resp *AnthropicCountTokensResponse) ToBifrostCountTokensResponse(model string) *schemas.BifrostCountTokensResponse {
+	if resp == nil {
+		return nil
+	}
+
+	totalTokens := resp.InputTokens
+
+	bifrostResp := &schemas.BifrostCountTokensResponse{
+		Model:       model,
+		InputTokens: resp.InputTokens,
+		TotalTokens: &totalTokens,
+		Object:      "response.input_tokens",
+	}
+
+	return bifrostResp
+}
+
+// ToAnthropicCountTokensResponse converts a Bifrost count tokens response to Anthropic format.
+func ToAnthropicCountTokensResponse(bifrostResp *schemas.BifrostCountTokensResponse) *AnthropicCountTokensResponse {
+	if bifrostResp == nil {
+		return nil
+	}
+
+	return &AnthropicCountTokensResponse{
+		InputTokens: bifrostResp.InputTokens,
+	}
+}