feat: add NanoGPT as AI provider

cmd/testai/main-testai.go

@@ -27,6 +27,7 @@ const (
 	DefaultAnthropicModel  = "claude-sonnet-4-5"
 	DefaultOpenAIModel     = "gpt-5.1"
 	DefaultOpenRouterModel = "mistralai/mistral-small-3.2-24b-instruct"
+	DefaultNanoGPTModel    = "zai-org/glm-4.7"
 	DefaultGeminiModel     = "gemini-3-pro-preview"
 )
 
@@ -257,6 +258,55 @@ func testOpenRouter(ctx context.Context, model, message string, tools []uctypes.
 	}
 }
 
+func testNanoGPT(ctx context.Context, model, message string, tools []uctypes.ToolDefinition) {
+	apiKey := os.Getenv("NANOGPT_KEY")
+	if apiKey == "" {
+		fmt.Println("Error: NANOGPT_KEY environment variable not set")
+		os.Exit(1)
+	}
+
+	opts := &uctypes.AIOptsType{
+		APIType:   uctypes.APIType_OpenAIChat,
+		APIToken:  apiKey,
+		Endpoint:  "https://nano-gpt.com/api/v1/chat/completions",
+		Model:     model,
+		MaxTokens: 4096,
+	}
+
+	chatID := uuid.New().String()
+
+	aiMessage := &uctypes.AIMessage{
+		MessageId: uuid.New().String(),
+		Parts: []uctypes.AIMessagePart{
+			{
+				Type: uctypes.AIMessagePartTypeText,
+				Text: message,
+			},
+		},
+	}
+
+	fmt.Printf("Testing NanoGPT with WaveAIPostMessageWrap, model: %s\n", model)
+	fmt.Printf("Message: %s\n", message)
+	fmt.Printf("Chat ID: %s\n", chatID)
+	fmt.Println("---")
+
+	testWriter := &TestResponseWriter{}
+	sseHandler := sse.MakeSSEHandlerCh(testWriter, ctx)
+	defer sseHandler.Close()
+
+	chatOpts := uctypes.WaveChatOpts{
+		ChatId:       chatID,
+		ClientId:     uuid.New().String(),
+		Config:       *opts,
+		Tools:        tools,
+		SystemPrompt: []string{"You are a helpful assistant. Be concise and clear in your responses."},
+	}
+	err := aiusechat.WaveAIPostMessageWrap(ctx, sseHandler, aiMessage, chatOpts)
+	if err != nil {
+		fmt.Printf("NanoGPT streaming error: %v\n", err)
+	}
+}
+
 func testAnthropic(ctx context.Context, model, message string, tools []uctypes.ToolDefinition) {
 	apiKey := os.Getenv("ANTHROPIC_APIKEY")
 	if apiKey == "" {
@@ -381,7 +431,7 @@ func testT4(ctx context.Context) {
 }
 
 func printUsage() {
-	fmt.Println("Usage: go run main-testai.go [--anthropic|--openaicomp|--openrouter|--gemini] [--tools] [--model <model>] [message]")
+	fmt.Println("Usage: go run main-testai.go [--anthropic|--openaicomp|--openrouter|--nanogpt|--gemini] [--tools] [--model <model>] [message]")
 	fmt.Println("Examples:")
 	fmt.Println("  go run main-testai.go 'What is 2+2?'")
 	fmt.Println("  go run main-testai.go --model o4-mini 'What is 2+2?'")
@@ -390,6 +440,8 @@ func printUsage() {
 	fmt.Println("  go run main-testai.go --openaicomp --model gpt-4o 'What is 2+2?'")
 	fmt.Println("  go run main-testai.go --openrouter 'What is 2+2?'")
 	fmt.Println("  go run main-testai.go --openrouter --model anthropic/claude-3.5-sonnet 'What is 2+2?'")
+	fmt.Println("  go run main-testai.go --nanogpt 'What is 2+2?'")
+	fmt.Println("  go run main-testai.go --nanogpt --model gpt-4o 'What is 2+2?'")
 	fmt.Println("  go run main-testai.go --gemini 'What is 2+2?'")
 	fmt.Println("  go run main-testai.go --gemini --model gemini-1.5-pro 'What is 2+2?'")
 	fmt.Println("  go run main-testai.go --tools 'Help me configure GitHub Actions monitoring'")
@@ -399,24 +451,27 @@ func printUsage() {
 	fmt.Printf("  Anthropic: %s\n", DefaultAnthropicModel)
 	fmt.Printf("  OpenAI Completions: gpt-4o\n")
 	fmt.Printf("  OpenRouter: %s\n", DefaultOpenRouterModel)
+	fmt.Printf("  NanoGPT: %s\n", DefaultNanoGPTModel)
 	fmt.Printf("  Google Gemini: %s\n", DefaultGeminiModel)
 	fmt.Println("")
 	fmt.Println("Environment variables:")
 	fmt.Println("  OPENAI_APIKEY (for OpenAI models)")
 	fmt.Println("  ANTHROPIC_APIKEY (for Anthropic models)")
 	fmt.Println("  OPENROUTER_APIKEY (for OpenRouter models)")
+	fmt.Println("  NANOGPT_KEY (for NanoGPT models)")
 	fmt.Println("  GOOGLE_APIKEY (for Google Gemini models)")
 }
 
 func main() {
-	var anthropic, openaicomp, openrouter, gemini, tools, help, t1, t2, t3, t4 bool
+	var anthropic, openaicomp, openrouter, nanogpt, gemini, tools, help, t1, t2, t3, t4 bool
 	var model string
 	flag.BoolVar(&anthropic, "anthropic", false, "Use Anthropic API instead of OpenAI")
 	flag.BoolVar(&openaicomp, "openaicomp", false, "Use OpenAI Completions API")
 	flag.BoolVar(&openrouter, "openrouter", false, "Use OpenRouter API")
+	flag.BoolVar(&nanogpt, "nanogpt", false, "Use NanoGPT API")
 	flag.BoolVar(&gemini, "gemini", false, "Use Google Gemini API")
 	flag.BoolVar(&tools, "tools", false, "Enable GitHub Actions Monitor tools for testing")
-	flag.StringVar(&model, "model", "", fmt.Sprintf("AI model to use (defaults: %s for OpenAI, %s for Anthropic, %s for OpenRouter, %s for Gemini)", DefaultOpenAIModel, DefaultAnthropicModel, DefaultOpenRouterModel, DefaultGeminiModel))
+	flag.StringVar(&model, "model", "", fmt.Sprintf("AI model to use (defaults: %s for OpenAI, %s for Anthropic, %s for OpenRouter, %s for NanoGPT, %s for Gemini)", DefaultOpenAIModel, DefaultAnthropicModel, DefaultOpenRouterModel, DefaultNanoGPTModel, DefaultGeminiModel))
 	flag.BoolVar(&help, "help", false, "Show usage information")
 	flag.BoolVar(&t1, "t1", false, fmt.Sprintf("Run preset T1 test (%s with 'what is 2+2')", DefaultAnthropicModel))
 	flag.BoolVar(&t2, "t2", false, fmt.Sprintf("Run preset T2 test (%s with 'what is 2+2')", DefaultOpenAIModel))
@@ -457,6 +512,8 @@ func main() {
 			model = "gpt-4o"
 		} else if openrouter {
 			model = DefaultOpenRouterModel
+		} else if nanogpt {
+			model = DefaultNanoGPTModel
 		} else if gemini {
 			model = DefaultGeminiModel
 		} else {
@@ -481,6 +538,8 @@ func main() {
 		testOpenAIComp(ctx, model, message, toolDefs)
 	} else if openrouter {
 		testOpenRouter(ctx, model, message, toolDefs)
+	} else if nanogpt {
+		testNanoGPT(ctx, model, message, toolDefs)
 	} else if gemini {
 		testGemini(ctx, model, message, toolDefs)
 	} else {

docs/docs/waveai-modes.mdx

@@ -34,6 +34,7 @@ Wave AI now supports provider-based configuration which automatically applies se
 
 - **`openai`** - OpenAI API (automatically configures endpoint and secret name) [[see example](#openai)]
 - **`openrouter`** - OpenRouter API (automatically configures endpoint and secret name) [[see example](#openrouter)]
+- **`nanogpt`** - NanoGPT API (automatically configures endpoint and secret name) [[see example](#nanogpt)]
 - **`google`** - Google AI (Gemini) [[see example](#google-ai-gemini)]
 - **`azure`** - Azure OpenAI Service (modern API) [[see example](#azure-openai-modern-api)]
 - **`azure-legacy`** - Azure OpenAI Service (legacy deployment API) [[see example](#azure-openai-legacy-deployment-api)]
@@ -230,6 +231,40 @@ For OpenRouter, you must manually specify `ai:capabilities` based on your model'
 ```
 :::
 
+### NanoGPT
+
+[NanoGPT](https://nano-gpt.com) provides access to multiple AI models at competitive prices. Using the `nanogpt` provider simplifies configuration:
+
+```json
+{
+  "nanogpt-glm47": {
+    "display:name": "NanoGPT - GLM 4.7",
+    "ai:provider": "nanogpt",
+    "ai:model": "zai-org/glm-4.7"
+  }
+}
+```
+
+The provider automatically sets:
+- `ai:endpoint` to `https://nano-gpt.com/api/v1/chat/completions`
+- `ai:apitype` to `openai-chat`
+- `ai:apitokensecretname` to `NANOGPT_KEY` (store your NanoGPT API key with this name)
+
+:::note
+NanoGPT is a proxy service that provides access to multiple AI models. You must manually specify `ai:capabilities` based on the model's features. NanoGPT supports OpenAI-compatible tool calling for models that have that capability. Check the model's `capabilities.vision` field from the [NanoGPT models API](https://nano-gpt.com/api/v1/models?detailed=true) to determine image support. Example for a text-only model with tool support:
+```json
+{
+  "nanogpt-glm47": {
+    "display:name": "NanoGPT - GLM 4.7",
+    "ai:provider": "nanogpt",
+    "ai:model": "zai-org/glm-4.7",
+    "ai:capabilities": ["tools"]
+  }
+}
+```
+For vision-capable models like `openai/gpt-5`, add `"images"` to capabilities.
+:::
+
 ### Google AI (Gemini)
 
 [Google AI](https://ai.google.dev) provides the Gemini family of models. Using the `google` provider simplifies configuration:

pkg/aiusechat/uctypes/uctypes.go

@@ -27,6 +27,7 @@ const (
 	AIProvider_Wave        = "wave"
 	AIProvider_Google      = "google"
 	AIProvider_OpenRouter  = "openrouter"
+	AIProvider_NanoGPT     = "nanogpt"
 	AIProvider_OpenAI      = "openai"
 	AIProvider_Azure       = "azure"
 	AIProvider_AzureLegacy = "azure-legacy"

pkg/aiusechat/usechat-mode.go

@@ -21,6 +21,7 @@ const (
 	OpenAIResponsesEndpoint        = "https://api.openai.com/v1/responses"
 	OpenAIChatEndpoint             = "https://api.openai.com/v1/chat/completions"
 	OpenRouterChatEndpoint         = "https://openrouter.ai/api/v1/chat/completions"
+	NanoGPTChatEndpoint            = "https://nano-gpt.com/api/v1/chat/completions"
 	AzureLegacyEndpointTemplate    = "https://%s.openai.azure.com/openai/deployments/%s/chat/completions?api-version=%s"
 	AzureResponsesEndpointTemplate = "https://%s.openai.azure.com/openai/v1/responses"
 	AzureChatEndpointTemplate      = "https://%s.openai.azure.com/openai/v1/chat/completions"
@@ -30,6 +31,7 @@ const (
 
 	OpenAIAPITokenSecretName      = "OPENAI_KEY"
 	OpenRouterAPITokenSecretName  = "OPENROUTER_KEY"
+	NanoGPTAPITokenSecretName     = "NANOGPT_KEY"
 	AzureOpenAIAPITokenSecretName = "AZURE_OPENAI_KEY"
 	GoogleAIAPITokenSecretName    = "GOOGLE_AI_KEY"
 )
@@ -99,6 +101,17 @@ func applyProviderDefaults(config *wconfig.AIModeConfigType) {
 			config.APITokenSecretName = OpenRouterAPITokenSecretName
 		}
 	}
+	if config.Provider == uctypes.AIProvider_NanoGPT {
+		if config.APIType == "" {
+			config.APIType = uctypes.APIType_OpenAIChat
+		}
+		if config.Endpoint == "" {
+			config.Endpoint = NanoGPTChatEndpoint
+		}
+		if config.APITokenSecretName == "" {
+			config.APITokenSecretName = NanoGPTAPITokenSecretName
+		}
+	}
 	if config.Provider == uctypes.AIProvider_AzureLegacy {
 		if config.AzureAPIVersion == "" {
 			config.AzureAPIVersion = AzureLegacyDefaultAPIVersion

pkg/wconfig/settingsconfig.go

@@ -269,7 +269,7 @@ type AIModeConfigType struct {
 	DisplayOrder       float64  `json:"display:order,omitempty"`
 	DisplayIcon        string   `json:"display:icon,omitempty"`
 	DisplayDescription string   `json:"display:description,omitempty"`
-	Provider           string   `json:"ai:provider,omitempty" jsonschema:"enum=wave,enum=google,enum=openrouter,enum=openai,enum=azure,enum=azure-legacy,enum=custom"`
+	Provider           string   `json:"ai:provider,omitempty" jsonschema:"enum=wave,enum=google,enum=openrouter,enum=nanogpt,enum=openai,enum=azure,enum=azure-legacy,enum=custom"`
 	APIType            string   `json:"ai:apitype,omitempty" jsonschema:"enum=google-gemini,enum=openai-responses,enum=openai-chat"`
 	Model              string   `json:"ai:model,omitempty"`
 	ThinkingLevel      string   `json:"ai:thinkinglevel,omitempty" jsonschema:"enum=low,enum=medium,enum=high"`

schema/waveai.json

@@ -21,6 +21,7 @@
             "wave",
             "google",
             "openrouter",
+            "nanogpt",
             "openai",
             "azure",
             "azure-legacy",