fix: base provider level request level restriction and updated custom provider docs for go SDK

core/schemas/provider.go

@@ -123,6 +123,114 @@ func (ar *AllowedRequests) IsOperationAllowed(operation Operation) bool {
 	}
 }
 
+// GetProviderCapabilities returns the capabilities for a given provider
+func GetProviderCapabilities(provider ModelProvider) AllowedRequests {
+	switch provider {
+	case OpenAI:
+		return AllowedRequests{
+			TextCompletion:       false,
+			ChatCompletion:       true,
+			ChatCompletionStream: true,
+			Embedding:            true,
+			Speech:               true,
+			SpeechStream:         true,
+			Transcription:        true,
+			TranscriptionStream:  true,
+		}
+	case Anthropic:
+		return AllowedRequests{
+			TextCompletion:       true,
+			ChatCompletion:       true,
+			ChatCompletionStream: true,
+			Embedding:            false,
+			Speech:               false,
+			SpeechStream:         false,
+			Transcription:        false,
+			TranscriptionStream:  false,
+		}
+	case Cohere:
+		return AllowedRequests{
+			TextCompletion:       false,
+			ChatCompletion:       true,
+			ChatCompletionStream: true,
+			Embedding:            true,
+			Speech:               false,
+			SpeechStream:         false,
+			Transcription:        false,
+			TranscriptionStream:  false,
+		}
+	case Bedrock:
+		return AllowedRequests{
+			TextCompletion:       true,
+			ChatCompletion:       true,
+			ChatCompletionStream: true,
+			Embedding:            true,
+			Speech:               false,
+			SpeechStream:         false,
+			Transcription:        false,
+			TranscriptionStream:  false,
+		}
+	case Gemini:
+		return AllowedRequests{
+			TextCompletion:       false,
+			ChatCompletion:       true,
+			ChatCompletionStream: true,
+			Embedding:            true,
+			Speech:               true,
+			SpeechStream:         true,
+			Transcription:        true,
+			TranscriptionStream:  true,
+		}
+	default:
+		 // Unknown providers: safest default is no capabilities; upstream validation should reject these.
+		return AllowedRequests{}
+	}
+}
+
+// GetDefaultAllowedRequestsForProvider returns a default AllowedRequests based on provider capabilities
+// This ensures that when no explicit restrictions are set, operations are limited to what the provider supports
+func GetDefaultAllowedRequestsForProvider(baseProvider ModelProvider) *AllowedRequests {
+	capabilities := GetProviderCapabilities(baseProvider)
+	return &capabilities
+}
+
+// ValidateAllowedRequests checks if the allowed requests are valid for the given base provider
+// and silently sets any unsupported operations to false instead of returning an error
+func ValidateAllowedRequests(allowedRequests *AllowedRequests, baseProvider ModelProvider) {
+	if allowedRequests == nil {
+		// nil means all operations allowed, which is always valid
+		return
+	}
+
+	capabilities := GetProviderCapabilities(baseProvider)
+
+	// Silently set unsupported operations to false instead of returning an error
+	if allowedRequests.TextCompletion && !capabilities.TextCompletion {
+		allowedRequests.TextCompletion = false
+	}
+	if allowedRequests.ChatCompletion && !capabilities.ChatCompletion {
+		allowedRequests.ChatCompletion = false
+	}
+	if allowedRequests.ChatCompletionStream && !capabilities.ChatCompletionStream {
+		allowedRequests.ChatCompletionStream = false
+	}
+	if allowedRequests.Embedding && !capabilities.Embedding {
+		allowedRequests.Embedding = false
+	}
+	if allowedRequests.Speech && !capabilities.Speech {
+		allowedRequests.Speech = false
+	}
+	if allowedRequests.SpeechStream && !capabilities.SpeechStream {
+		allowedRequests.SpeechStream = false
+	}
+	if allowedRequests.Transcription && !capabilities.Transcription {
+		allowedRequests.Transcription = false
+	}
+	if allowedRequests.TranscriptionStream && !capabilities.TranscriptionStream {
+		allowedRequests.TranscriptionStream = false
+	}
+}
+
 type CustomProviderConfig struct {
 	CustomProviderKey string           `json:"-"`                  // Custom provider key, internally set by Bifrost
 	BaseProviderType  ModelProvider    `json:"base_provider_type"` // Base provider type
@@ -131,8 +239,13 @@ type CustomProviderConfig struct {
 
 // IsOperationAllowed checks if a specific operation is allowed for this custom provider
 func (cpc *CustomProviderConfig) IsOperationAllowed(operation Operation) bool {
-	if cpc == nil || cpc.AllowedRequests == nil {
-		return true // Default to allowed if no restrictions
+	if cpc == nil {
+		return true // Default to allowed if no custom provider config
+	}
+	if cpc.AllowedRequests == nil {
+		// Use provider capabilities as default when no explicit restrictions are set
+		defaultAllowedRequests := GetDefaultAllowedRequestsForProvider(cpc.BaseProviderType)
+		return defaultAllowedRequests.IsOperationAllowed(operation)
 	}
 	return cpc.AllowedRequests.IsOperationAllowed(operation)
 }

docs/features/custom-providers.mdx

@@ -107,6 +107,73 @@ curl --location 'http://localhost:8080/api/providers' \
 }
 ```
 
+</Tab>
+
+<Tab title="Using Go SDK">
+
+```go
+type MyAccount struct{}
+
+const OpenAICustom = schemas.ModelProvider("openai-custom")
+
+func (a *MyAccount) GetConfiguredProviders() ([]schemas.ModelProvider, error) {
+    return []schemas.ModelProvider{schemas.OpenAI, schemas.Anthropic, OpenAICustom}, nil
+}
+
+func (a *MyAccount) GetKeysForProvider(ctx *context.Context, provider schemas.ModelProvider) ([]schemas.Key, error) {
+    switch provider {
+    case schemas.OpenAI:
+        return []schemas.Key{{
+            Value:  os.Getenv("OPENAI_API_KEY"),
+            Models: []string{},
+            Weight: 1.0,
+        }}, nil
+    case schemas.Anthropic:
+        return []schemas.Key{{
+            Value:  os.Getenv("ANTHROPIC_API_KEY"),
+            Models: []string{},
+            Weight: 1.0,
+        }}, nil
+    case OpenAICustom:
+        return []schemas.Key{{
+            Value:  os.Getenv("PROVIDER_API_KEY"),
+            Models: []string{},
+            Weight: 1.0,
+        }}, nil
+    }
+    return nil, fmt.Errorf("provider %s not supported", provider)
+}
+
+func (a *MyAccount) GetConfigForProvider(provider schemas.ModelProvider) (*schemas.ProviderConfig, error) {
+    switch provider {
+        case OpenAICustom:
+            // Return config with base provider and allowed requests
+            return &schemas.ProviderConfig{
+                    NetworkConfig:            schemas.DefaultNetworkConfig,
+                    ConcurrencyAndBufferSize: schemas.DefaultConcurrencyAndBufferSize,
+                    BaseProviderType: schemas.OpenAI,
+                    AllowedRequests: &schemas.AllowedRequests{
+                        TextCompletion:       false,
+                        ChatCompletion:       true,
+                        ChatCompletionStream: true,
+                        Embedding:            true,
+                        Speech:               false,
+                        SpeechStream:         false,
+                        Transcription:        false,
+                        TranscriptionStream:  false,
+                    },
+            }, nil
+        default: 
+            // Return default config for other providers
+            return &schemas.ProviderConfig{
+                    NetworkConfig:            schemas.DefaultNetworkConfig,
+                    ConcurrencyAndBufferSize: schemas.DefaultConcurrencyAndBufferSize,
+            }, nil     
+    }
+}
+```
+
+
 </Tab>
 
 </Tabs>

transports/bifrost-http/handlers/providers.go

@@ -161,23 +161,6 @@ func (h *ProviderHandler) AddProvider(ctx *fasthttp.RequestCtx) {
 	// baseProvider tracks the effective base provider type for validations/keys
 	baseProvider := req.Provider
 	if req.CustomProviderConfig != nil {
-		// custom provider key should not be same as standard provider names
-		if bifrost.IsStandardProvider(baseProvider) {
-			SendError(ctx, fasthttp.StatusBadRequest, "Custom provider cannot be same as a standard provider", h.logger)
-			return
-		}
-
-		if req.CustomProviderConfig.BaseProviderType == "" {
-			SendError(ctx, fasthttp.StatusBadRequest, "BaseProviderType is required when CustomProviderConfig is provided", h.logger)
-			return
-		}
-
-		// check if base provider is a supported base provider
-		if !bifrost.IsSupportedBaseProvider(req.CustomProviderConfig.BaseProviderType) {
-			SendError(ctx, fasthttp.StatusBadRequest, "BaseProviderType must be a standard provider", h.logger)
-			return
-		}
-
 		// CustomProviderKey is internally set by Bifrost, no validation needed
 		baseProvider = req.CustomProviderConfig.BaseProviderType
 	}
@@ -219,6 +202,14 @@ func (h *ProviderHandler) AddProvider(ctx *fasthttp.RequestCtx) {
 		CustomProviderConfig:     req.CustomProviderConfig,
 	}
 
+	// Validate custom provider configuration (including AllowedRequests sanitization)
+	if req.CustomProviderConfig != nil {
+		if err := lib.ValidateCustomProvider(config, req.Provider); err != nil {
+			SendError(ctx, fasthttp.StatusBadRequest, fmt.Sprintf("Invalid custom provider config: %v", err), h.logger)
+			return
+		}
+	}
+
 	// Add provider to store (env vars will be processed by store)
 	if err := h.store.AddProvider(req.Provider, config); err != nil {
 		h.logger.Warn(fmt.Sprintf("Failed to add provider %s: %v", req.Provider, err))

transports/bifrost-http/lib/config.go

@@ -1850,6 +1850,26 @@ func ValidateCustomProvider(config configstore.ProviderConfig, provider schemas.
 	if !bifrost.IsSupportedBaseProvider(cpc.BaseProviderType) {
 		return fmt.Errorf("custom provider validation failed: unsupported base_provider_type: %s", cpc.BaseProviderType)
 	}
+
+	// Validate allowed requests against base provider capabilities
+	if cpc.AllowedRequests != nil {
+		schemas.ValidateAllowedRequests(cpc.AllowedRequests, cpc.BaseProviderType)
+	} else {
+		// Set default allowed requests based on provider capabilities when nil
+		// This ensures the auto-disable feature works even when no explicit restrictions are set
+		caps := schemas.GetProviderCapabilities(cpc.BaseProviderType)
+		cpc.AllowedRequests = &schemas.AllowedRequests{
+			TextCompletion:       caps.TextCompletion,
+			ChatCompletion:       caps.ChatCompletion,
+			ChatCompletionStream: caps.ChatCompletionStream,
+			Embedding:            caps.Embedding,
+			Speech:               caps.Speech,
+			SpeechStream:         caps.SpeechStream,
+			Transcription:        caps.Transcription,
+			TranscriptionStream:  caps.TranscriptionStream,
+		}
+	}
+
 	return nil
 }
 
@@ -1882,7 +1902,8 @@ func ValidateCustomProviderUpdate(newConfig, existingConfig configstore.Provider
 			provider, existingCPC.BaseProviderType, newCPC.BaseProviderType)
 	}
 
-	return nil
+	// Validate the new config (including AllowedRequests sanitization)
+	return ValidateCustomProvider(newConfig, provider)
 }
 
 func (s *Config) AddProviderKeysToSemanticCacheConfig(config *schemas.PluginConfig) error {

ui/app/providers/configure/page.tsx

@@ -1,7 +1,8 @@
 "use client";
 
-import { closeConfigureDialog, useAppDispatch, useAppSelector, useGetProvidersQuery } from "@/lib/store";
+import { closeConfigureDialog, setSelectedProvider, useAppDispatch, useAppSelector, useGetProvidersQuery } from "@/lib/store";
 import { useRouter } from "next/navigation";
+import { useEffect } from "react";
 import ProviderForm from "./provider-form";
 
 export default function ConfigurePage() {
@@ -10,6 +11,16 @@ export default function ConfigurePage() {
 	const selectedProvider = useAppSelector((state) => state.provider.selectedProvider);
 	const { data: providersData, refetch } = useGetProvidersQuery();
 
+	// Auto-select first available provider when no provider is selected and data is loaded
+	useEffect(() => {
+		if (!selectedProvider && providersData?.providers && providersData.providers.length > 0) {
+			const providerToSelect = providersData.providers[0];
+
+			// Update Redux state to select this provider
+			dispatch(setSelectedProvider(providerToSelect));
+		}
+	}, [selectedProvider, providersData?.providers, dispatch]);
+
 	const handleSave = () => {
 		refetch();
 		dispatch(closeConfigureDialog());