Add telemetry

internal/config/config.go

@@ -11,11 +11,12 @@ import (
 )
 
 type Config struct {
-	Port         int            `yaml:"port"`
-	APIKeys      []string       `yaml:"api_keys"`
-	ClaudeBinary string         `yaml:"claude_binary"`
-	Sanitize     SanitizeConfig `yaml:"sanitize"`
-	Logging      LoggingConfig  `yaml:"logging"`
+	Port         int              `yaml:"port"`
+	APIKeys      []string         `yaml:"api_keys"`
+	ClaudeBinary string           `yaml:"claude_binary"`
+	Sanitize     SanitizeConfig   `yaml:"sanitize"`
+	Logging      LoggingConfig    `yaml:"logging"`
+	Telemetry    TelemetryConfig  `yaml:"telemetry"`
 }
 
 type SanitizeConfig struct {
@@ -34,6 +35,15 @@ type ReplaceRule struct {
 	Replace string `yaml:"replace"`
 }
 
+type TelemetryConfig struct {
+	Endpoint    string            `yaml:"endpoint"`
+	Insecure    bool              `yaml:"insecure"`
+	ServiceName string            `yaml:"service_name"`
+	Headers     map[string]string `yaml:"headers"`
+}
+
+func (t TelemetryConfig) ExportEnabled() bool { return t.Endpoint != "" }
+
 type LoggingConfig struct {
 	Level      string `yaml:"level"`
 	File       string `yaml:"file"`
@@ -76,6 +86,10 @@ func Load(path string) (*Config, error) {
 		cfg.Logging.MaxAgeDays = 30
 	}
 
+	if cfg.Telemetry.ServiceName == "" {
+		cfg.Telemetry.ServiceName = "anthropic-proxy"
+	}
+
 	// Check for deprecated claude_credentials field
 	var rawCfg map[string]interface{}
 	if err := yaml.Unmarshal(data, &rawCfg); err == nil {