Merge pull request 'feat: add ClaudeCodeProvider for subscription users' (#10) from feat/claude-code-provider into main

Reviewed-on: #10
This commit was merged in pull request #10.
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2026-05-21 12:25:34 +00:00
committed by Gitea
8 changed files with 763 additions and 565 deletions

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README.md
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@@ -1,35 +1,10 @@
# Simple AI Provider
A professional, type-safe TypeScript package that provides a unified interface for multiple AI providers. Currently supports **Claude (Anthropic)**, **OpenAI**, **Google Gemini**, and **OpenWebUI** with a consistent API across all providers.
A type-safe TypeScript library with a single API surface for **Claude (Anthropic)**, **OpenAI**, **Google Gemini**, **OpenWebUI**, and **Claude Code** (subscription-friendly via local CLI).
## ✨ Features
The same `complete()` / `stream()` interface works across every provider, with consistent error types, streaming, and optional structured (typed JSON) output.
- 🔗 **Unified Interface**: Same API for Claude, OpenAI, Gemini, and OpenWebUI
- 🎯 **Type Safety**: Full TypeScript support with comprehensive type definitions
- 🚀 **Streaming Support**: Real-time response streaming for all providers
- 🛡️ **Error Handling**: Standardized error types with provider-specific details
- 🏭 **Factory Pattern**: Easy provider creation and management
- 🔧 **Configurable**: Extensive configuration options for each provider
- 📦 **Zero Dependencies**: Lightweight with minimal external dependencies
- 🌐 **Local Support**: OpenWebUI integration for local/private AI models
- 🎨 **Structured Output**: Define custom response types for type-safe AI outputs
- 🏗️ **Provider Registry**: Dynamic provider registration and creation system
-**Comprehensive Testing**: Full test coverage with Bun test framework
- 🔍 **Advanced Validation**: Input validation with detailed error messages
## 🏗️ Architecture
The library is built on solid design principles:
- **Template Method Pattern**: Base provider defines the workflow, subclasses implement specifics
- **Factory Pattern**: Clean provider creation and management
- **Strategy Pattern**: Unified interface across different AI providers
- **Type Safety**: Comprehensive TypeScript support throughout
- **Error Normalization**: Consistent error handling across all providers
- **Validation First**: Input validation before processing
- **Extensibility**: Easy to add new providers via registry system
## 🚀 Quick Start
## Install
```bash
npm install simple-ai-provider
@@ -37,37 +12,14 @@ npm install simple-ai-provider
bun add simple-ai-provider
```
### Basic Usage
Requires Node ≥ 18 (or Bun). TypeScript ≥ 5 is recommended as a peer dependency.
## Quick start
```typescript
import { ClaudeProvider, OpenAIProvider, GeminiProvider, OpenWebUIProvider } from 'simple-ai-provider';
import { ClaudeProvider } from 'simple-ai-provider';
// Claude
const claude = new ClaudeProvider({
apiKey: process.env.ANTHROPIC_API_KEY!,
defaultModel: 'claude-3-5-sonnet-20241022'
});
// OpenAI
const openai = new OpenAIProvider({
apiKey: process.env.OPENAI_API_KEY!,
defaultModel: 'gpt-4o'
});
// Google Gemini
const gemini = new GeminiProvider({
apiKey: process.env.GOOGLE_AI_API_KEY!,
defaultModel: 'gemini-1.5-flash'
});
// OpenWebUI (local)
const openwebui = new OpenWebUIProvider({
apiKey: 'ollama', // Often not required
baseUrl: 'http://localhost:3000',
defaultModel: 'llama2'
});
// Initialize and use any provider
const claude = new ClaudeProvider({ apiKey: process.env.ANTHROPIC_API_KEY! });
await claude.initialize();
const response = await claude.complete({
@@ -75,183 +27,88 @@ const response = await claude.complete({
{ role: 'system', content: 'You are a helpful assistant.' },
{ role: 'user', content: 'Explain TypeScript in one sentence.' }
],
maxTokens: 100,
temperature: 0.7
maxTokens: 200
});
console.log(response.content);
console.log(response.usage); // { promptTokens, completionTokens, totalTokens }
```
## 🏭 Factory Functions
Every provider follows the same pattern: construct, `initialize()`, then `complete()` or `stream()`.
Create providers using factory functions for cleaner code:
## Providers
### Claude (Anthropic API)
```typescript
import { createProvider, createClaudeProvider, createOpenAIProvider, createGeminiProvider, createOpenWebUIProvider } from 'simple-ai-provider';
import { ClaudeProvider } from 'simple-ai-provider';
// Method 1: Specific factory functions
const claude = createClaudeProvider('your-key', { defaultModel: 'claude-3-5-sonnet-20241022' });
const openai = createOpenAIProvider('your-key', { defaultModel: 'gpt-4o' });
const gemini = createGeminiProvider('your-key', { defaultModel: 'gemini-1.5-flash' });
const openwebui = createOpenWebUIProvider({ apiKey: 'your-key', baseUrl: 'http://localhost:3000' });
// Method 2: Generic factory
const provider = createProvider('claude', { apiKey: 'your-key' });
const claude = new ClaudeProvider({
apiKey: process.env.ANTHROPIC_API_KEY!,
defaultModel: 'claude-3-5-sonnet-20241022', // optional
version: '2023-06-01', // optional
timeout: 30_000, // optional, ms
maxRetries: 3 // optional
});
```
### Provider Registry
### Claude Code (subscription via local CLI)
For dynamic provider creation and registration:
`ClaudeCodeProvider` wraps `@anthropic-ai/claude-agent-sdk`, which authenticates through the local `claude` CLI. This is the supported path for **Claude Pro / Max subscribers** who don't have a console API key.
**Setup:** install the CLI and run `claude login` once. No API key required.
```typescript
import { ProviderRegistry, ClaudeProvider } from 'simple-ai-provider';
import { ClaudeCodeProvider } from 'simple-ai-provider';
// Register a custom provider
ProviderRegistry.register('my-claude', ClaudeProvider);
// Create provider dynamically
const provider = ProviderRegistry.create('my-claude', { apiKey: 'your-key' });
// Check available providers
const availableProviders = ProviderRegistry.getRegisteredProviders();
console.log(availableProviders); // ['claude', 'openai', 'gemini', 'openwebui', 'my-claude']
```
## 🎨 Structured Response Types
Define custom response types for type-safe, structured AI outputs. The library automatically parses the AI's response into your desired type.
```typescript
import { createResponseType, createClaudeProvider } from 'simple-ai-provider';
// 1. Define your response type
interface ProductAnalysis {
productName: string;
priceRange: 'budget' | 'mid-range' | 'premium';
pros: string[];
cons: string[];
overallRating: number; // 1-10 scale
recommendation: 'buy' | 'consider' | 'avoid';
}
// 2. Create a ResponseType object
const productAnalysisType = createResponseType<ProductAnalysis>(
'A comprehensive product analysis with pros, cons, rating, and recommendation'
);
// 3. Use with any provider
const claude = createClaudeProvider({ apiKey: 'your-key' });
const claude = new ClaudeCodeProvider({}); // uses local credentials
await claude.initialize();
const response = await claude.complete<ProductAnalysis>({
messages: [
{ role: 'user', content: 'Analyze the iPhone 15 Pro from a consumer perspective.' }
],
responseType: productAnalysisType,
maxTokens: 800
});
// 4. Get the fully typed and parsed response
const analysis = response.content;
console.log(`Product: ${analysis.productName}`);
console.log(`Recommendation: ${analysis.recommendation}`);
console.log(`Rating: ${analysis.overallRating}/10`);
```
### Key Benefits
- **Automatic Parsing**: The AI's JSON response is automatically parsed into your specified type.
- **Type Safety**: Get fully typed responses from AI providers with IntelliSense.
- **Automatic Prompting**: System prompts are automatically generated to guide the AI.
- **Validation**: Built-in response validation and parsing logic.
- **Consistency**: Ensures AI outputs match your expected format.
- **Developer Experience**: Catch errors at compile-time instead of runtime.
### Streaming with Response Types
You can also use response types with streaming. The raw stream provides real-time text, and you can parse the final string once the stream is complete.
```typescript
import { parseAndValidateResponseType } from 'simple-ai-provider';
const stream = claude.stream({
messages: [{ role: 'user', content: 'Analyze the Tesla Model 3.' }],
responseType: productAnalysisType,
maxTokens: 600
});
let fullResponse = '';
for await (const chunk of stream) {
if (!chunk.isComplete) {
process.stdout.write(chunk.content);
fullResponse += chunk.content;
} else {
console.log('\n\nStream complete!');
// Validate the complete streamed response
try {
const analysis = parseAndValidateResponseType(fullResponse, productAnalysisType);
console.log('Validation successful!');
console.log(`Product: ${analysis.productName}`);
} catch (e) {
console.error('Validation failed:', (e as Error).message);
}
}
}
```
## 📝 Environment Variables
Set up your API keys:
```bash
# Required for respective providers
export ANTHROPIC_API_KEY="your-claude-api-key"
export OPENAI_API_KEY="your-openai-api-key"
export GOOGLE_AI_API_KEY="your-gemini-api-key"
# OpenWebUI Bearer Token (get from Settings > Account in OpenWebUI)
export OPENWEBUI_API_KEY="your-bearer-token"
```
## 🔧 Provider-Specific Configuration
### Claude Configuration
```typescript
const claude = new ClaudeProvider({
apiKey: 'your-api-key',
defaultModel: 'claude-3-5-sonnet-20241022',
version: '2023-06-01',
maxRetries: 3,
timeout: 30000
const response = await claude.complete({
messages: [{ role: 'user', content: 'Hello!' }]
});
```
### OpenAI Configuration
You can still pass `apiKey` to override (it's set as `ANTHROPIC_API_KEY` for the SDK). Optional config:
```typescript
new ClaudeCodeProvider({
defaultModel: 'sonnet', // 'sonnet' | 'opus' | 'haiku' | 'inherit' | full model ID
maxTurns: 1, // 1 for plain completion; raise for agent/tool loops
allowedTools: [], // tool names to enable (default: none)
cwd: process.cwd() // working directory for the agent
});
```
**Trade-offs to know:**
- Requires `claude` CLI installed on the host. Not ideal for typical server deployments.
- Higher latency than the direct API (spawns a CLI process per request).
- Streaming yields text as the SDK emits successive assistant messages, not token-by-token deltas.
### OpenAI
```typescript
import { OpenAIProvider } from 'simple-ai-provider';
const openai = new OpenAIProvider({
apiKey: 'your-api-key',
apiKey: process.env.OPENAI_API_KEY!,
defaultModel: 'gpt-4o',
organization: 'your-org-id',
project: 'your-project-id',
maxRetries: 3,
timeout: 30000
organization: 'org-...', // optional
project: 'proj-...' // optional
});
```
### Gemini Configuration
`baseUrl` is supported for OpenAI-compatible endpoints.
### Gemini (Google)
```typescript
import { GeminiProvider } from 'simple-ai-provider';
const gemini = new GeminiProvider({
apiKey: 'your-api-key',
defaultModel: 'gemini-1.5-flash',
safetySettings: [
{
category: 'HARM_CATEGORY_HARASSMENT',
threshold: 'BLOCK_MEDIUM_AND_ABOVE'
}
],
apiKey: process.env.GOOGLE_AI_API_KEY!,
defaultModel: 'gemini-2.5-flash',
safetySettings: [/* SafetySetting[] from @google/genai */],
generationConfig: {
temperature: 0.7,
topP: 0.8,
@@ -261,441 +118,198 @@ const gemini = new GeminiProvider({
});
```
### OpenWebUI Configuration
Backed by `@google/genai` (the successor to the deprecated `@google/generative-ai`).
### OpenWebUI (local / self-hosted)
```typescript
import { OpenWebUIProvider } from 'simple-ai-provider';
const openwebui = new OpenWebUIProvider({
apiKey: 'your-bearer-token', // Get from OpenWebUI Settings > Account
baseUrl: 'http://localhost:3000', // Your OpenWebUI instance
defaultModel: 'llama3.1',
useOllamaProxy: false, // Use OpenWebUI's chat API (recommended)
// useOllamaProxy: true, // Use Ollama API proxy for direct model access
dangerouslyAllowInsecureConnections: true, // For local HTTPS
timeout: 60000, // Longer timeout for local inference
maxRetries: 2
apiKey: 'your-bearer-token', // from Settings > Account in OpenWebUI
baseUrl: 'http://localhost:3000',
defaultModel: 'llama3.1:latest',
useOllamaProxy: false, // false: OpenWebUI chat API (default)
// true: direct Ollama proxy
dangerouslyAllowInsecureConnections: true
});
```
## 🌊 Streaming Support
`useOllamaProxy` flips between two internal strategies — the OpenAI-compatible chat completions endpoint and the direct Ollama generate endpoint.
All providers support real-time streaming:
## Streaming
Identical shape across providers:
```typescript
const stream = provider.stream({
messages: [{ role: 'user', content: 'Count from 1 to 10' }],
maxTokens: 100
});
for await (const chunk of stream) {
for await (const chunk of provider.stream({ messages, maxTokens: 200 })) {
if (!chunk.isComplete) {
process.stdout.write(chunk.content);
} else {
console.log('\nDone! Usage:', chunk.usage);
console.log('\n', chunk.usage);
}
}
```
## 🔀 Multi-Provider Usage
## Structured output
Use multiple providers seamlessly:
Ask any provider for a typed JSON response. The library injects a system prompt describing the expected shape and parses the result.
```typescript
const providers = {
claude: new ClaudeProvider({ apiKey: process.env.ANTHROPIC_API_KEY! }),
openai: new OpenAIProvider({ apiKey: process.env.OPENAI_API_KEY! }),
gemini: new GeminiProvider({ apiKey: process.env.GOOGLE_AI_API_KEY! }),
openwebui: new OpenWebUIProvider({
apiKey: 'ollama',
baseUrl: 'http://localhost:3000'
})
};
import { createResponseType } from 'simple-ai-provider';
// Initialize all providers
await Promise.all(Object.values(providers).map(p => p.initialize()));
// Use the same interface for all
const prompt = {
messages: [{ role: 'user', content: 'Hello!' }],
maxTokens: 50
};
for (const [name, provider] of Object.entries(providers)) {
try {
const response = await provider.complete(prompt);
console.log(`${name}: ${response.content}`);
} catch (error) {
console.log(`${name} failed: ${error.message}`);
}
interface UserProfile {
name: string;
age: number;
hobbies: string[];
}
const profileType = createResponseType<UserProfile>(
'A user profile with name, age, and hobbies',
{ name: 'Alice', age: 30, hobbies: ['climbing', 'photography'] }
);
const response = await claude.complete({
messages: [{ role: 'user', content: 'Generate a fictional user profile.' }],
responseType: profileType
});
// response.content is typed as UserProfile
// response.rawContent is the original string
console.log(response.content.name);
```
## 📊 Provider Comparison
This also works with `stream()` — chunks deliver text, then the final chunk parses.
| Provider | Context Length | Streaming | Vision | Function Calling | Local Execution | Best For |
|----------|---------------|-----------|--------|------------------|-----------------|----------|
| **Claude** | 200K tokens | ✅ | ✅ | ✅ | ❌ | Reasoning, Analysis, Code Review |
| **OpenAI** | 128K tokens | ✅ | ✅ | ✅ | ❌ | General Purpose, Function Calling |
| **Gemini** | 1M tokens | ✅ | ✅ | ✅ | ❌ | Large Documents, Multimodal |
| **OpenWebUI** | 32K tokens | ✅ | ❌ | ❌ | ✅ | Privacy, Custom Models, Local |
## Factory functions
### Detailed Capabilities
Each provider offers unique capabilities:
#### Claude (Anthropic)
- Advanced reasoning and analysis
- Excellent code review capabilities
- Strong safety features
- System message support
#### OpenAI
- Broad model selection
- Function calling support
- JSON mode for structured outputs
- Vision capabilities
#### Gemini (Google)
- Largest context window (1M tokens)
- Multimodal capabilities
- Cost-effective pricing
- Strong multilingual support
#### OpenWebUI
- Complete privacy (local execution)
- Custom model support
- No API costs
- RAG (Retrieval Augmented Generation) support
## 🎯 Model Selection
### Getting Available Models
Instead of maintaining a static list, you can programmatically get available models:
If you prefer a single entry point:
```typescript
// Get provider information including available models
const info = provider.getInfo();
console.log('Available models:', info.models);
import { createProvider } from 'simple-ai-provider';
// Example output:
// Claude: ['claude-3-5-sonnet-20241022', 'claude-3-5-haiku-20241022', ...]
// OpenAI: ['gpt-4o', 'gpt-4o-mini', 'gpt-4-turbo', ...]
// Gemini: ['gemini-1.5-flash', 'gemini-1.5-pro', ...]
// OpenWebUI: ['llama3.1:latest', 'mistral:latest', ...]
const claude = createProvider('claude', { apiKey: '…' });
const openai = createProvider('openai', { apiKey: '…' });
const gemini = createProvider('gemini', { apiKey: '…' });
const openwebui = createProvider('openwebui', { apiKey: '…', baseUrl: '…' });
const claudeCode = createProvider('claude-code', {});
```
### Model Selection Guidelines
Per-provider shortcut factories also exist: `createClaudeProvider`, `createOpenAIProvider`, `createGeminiProvider`, `createOpenWebUIProvider`, `createClaudeCodeProvider`.
**For Claude (Anthropic):**
- Check [Anthropic's model documentation](https://docs.anthropic.com/claude/docs/models-overview) for latest models
## Error handling
**For OpenAI:**
- Check [OpenAI's model documentation](https://platform.openai.com/docs/models) for latest models
**For Gemini (Google):**
- Check [Google AI's model documentation](https://ai.google.dev/docs/models) for latest models
**For OpenWebUI:**
- Models depend on your local installation
- Check your OpenWebUI instance for available models
## 🚨 Error Handling
The package provides comprehensive, standardized error handling with detailed error types:
Every error thrown by the library is an `AIProviderError` with a typed `.type` and optional `.statusCode`:
```typescript
import { AIProviderError, AIErrorType } from 'simple-ai-provider';
try {
const response = await provider.complete({
messages: [{ role: 'user', content: 'Hello' }]
});
await provider.complete({ messages: [...] });
} catch (error) {
if (error instanceof AIProviderError) {
switch (error.type) {
case AIErrorType.AUTHENTICATION:
console.log('Invalid API key or authentication failed');
break;
case AIErrorType.RATE_LIMIT:
console.log('Rate limited, try again later');
break;
case AIErrorType.MODEL_NOT_FOUND:
console.log('Model not available or not found');
break;
case AIErrorType.INVALID_REQUEST:
console.log('Invalid request parameters');
break;
case AIErrorType.NETWORK:
console.log('Network/connection issue');
break;
case AIErrorType.TIMEOUT:
console.log('Request timed out');
break;
case AIErrorType.UNKNOWN:
console.log('Unknown error:', error.message);
break;
default:
console.log('Error:', error.message);
case AIErrorType.AUTHENTICATION: /* bad API key, expired token */ break;
case AIErrorType.RATE_LIMIT: /* slow down */ break;
case AIErrorType.MODEL_NOT_FOUND: /* wrong model name */ break;
case AIErrorType.INVALID_REQUEST: /* bad input */ break;
case AIErrorType.NETWORK: /* transient connectivity */ break;
case AIErrorType.TIMEOUT: /* slow request */ break;
case AIErrorType.UNKNOWN: /* fall back */ break;
}
// Access additional error details
console.log('Status Code:', error.statusCode);
console.log('Original Error:', error.originalError);
console.error(error.statusCode, error.originalError);
}
}
```
### Error Types
## Configuration reference
- **AUTHENTICATION**: Invalid API keys or authentication failures
- **RATE_LIMIT**: API rate limits exceeded
- **INVALID_REQUEST**: Malformed requests or invalid parameters
- **MODEL_NOT_FOUND**: Requested model is not available
- **NETWORK**: Connection issues or server errors
- **TIMEOUT**: Request timeout exceeded
- **UNKNOWN**: Unclassified errors
All providers share these base options:
## 🔧 Advanced Usage
| Option | Type | Default | Notes |
|--------------|----------|-----------|----------------------------------------|
| `apiKey` | `string` | required¹ | ¹ Optional for `ClaudeCodeProvider` |
| `baseUrl` | `string` | provider default | Custom or self-hosted endpoint |
| `timeout` | `number` | `30000` | Request timeout in ms |
| `maxRetries` | `number` | `3` | SDK-level retry attempts |
### Custom Base URLs
Each provider adds its own config (see the sections above).
```typescript
// OpenAI-compatible endpoint
const customOpenAI = new OpenAIProvider({
apiKey: 'your-key',
baseUrl: 'https://api.custom-provider.com/v1'
});
## TypeScript
// Custom OpenWebUI instance
const remoteOpenWebUI = new OpenWebUIProvider({
apiKey: 'your-key',
baseUrl: 'https://my-openwebui.example.com',
apiPath: '/api/v1'
});
```
### Provider Information
```typescript
const info = provider.getInfo();
console.log(`Provider: ${info.name} v${info.version}`);
console.log(`Models: ${info.models.join(', ')}`);
console.log(`Max Context: ${info.maxContextLength} tokens`);
console.log(`Supports Streaming: ${info.supportsStreaming}`);
console.log('Capabilities:', info.capabilities);
```
### OpenWebUI-Specific Features
OpenWebUI offers unique advantages for local AI deployment:
```typescript
const openwebui = new OpenWebUIProvider({
apiKey: 'your-bearer-token', // Get from OpenWebUI Settings > Account
baseUrl: 'http://localhost:3000',
defaultModel: 'llama3.1',
useOllamaProxy: false, // Use chat completions API (recommended)
// Longer timeout for local inference
timeout: 120000,
// Allow self-signed certificates for local development
dangerouslyAllowInsecureConnections: true
});
// Test connection and list available models
try {
await openwebui.initialize();
console.log('Connected to local OpenWebUI instance');
// Use either chat completions or Ollama proxy
const response = await openwebui.complete({
messages: [{ role: 'user', content: 'Hello!' }],
maxTokens: 100
});
} catch (error) {
console.log('OpenWebUI not available:', error.message);
// Gracefully fallback to cloud providers
}
```
**OpenWebUI API Modes:**
- **Chat Completions** (`useOllamaProxy: false`): OpenWebUI's native API with full features
- **Ollama Proxy** (`useOllamaProxy: true`): Direct access to Ollama API for raw model interaction
## 📦 TypeScript Support
Full TypeScript support with comprehensive type definitions:
Full type definitions ship with the package. The main types you'll use:
```typescript
import type {
AIMessage,
CompletionParams,
CompletionResponse,
CompletionChunk,
TokenUsage,
ProviderInfo,
ResponseType,
// Per-provider config interfaces
ClaudeConfig,
ClaudeCodeConfig,
OpenAIConfig,
GeminiConfig,
OpenWebUIConfig,
AIMessage,
ResponseType,
TokenUsage
OpenWebUIConfig
} from 'simple-ai-provider';
// Type-safe configuration
const config: ClaudeConfig = {
apiKey: 'your-key',
defaultModel: 'claude-3-5-sonnet-20241022',
// TypeScript will validate all options
};
// Type-safe responses
const response: CompletionResponse = await provider.complete(params);
// Type-safe messages with metadata
const messages: AIMessage[] = [
{
role: 'user',
content: 'Hello',
metadata: { timestamp: Date.now() }
}
];
// Type-safe response types
interface UserProfile {
name: string;
age: number;
}
const responseType: ResponseType<UserProfile> = createResponseType(
'A user profile with name and age',
{ name: 'John', age: 30 }
);
```
### Advanced Type Features
`CompletionResponse<T>` is generic — when you pass `responseType`, `content` is `T` (and the original string is preserved on `rawContent`).
- **Generic Response Types**: Type-safe structured outputs
- **Message Metadata**: Support for custom message properties
- **Provider-Specific Configs**: Type-safe configuration for each provider
- **Error Types**: Comprehensive error type definitions
- **Factory Functions**: Type-safe provider creation
## Provider metadata
## 🧪 Testing
Every provider exposes `getInfo()`:
The package includes comprehensive tests using Bun test framework:
```bash
# Run all tests
bun test
# Run tests for specific provider
bun test tests/claude.test.ts
bun test tests/openai.test.ts
bun test tests/gemini.test.ts
bun test tests/openwebui.test.ts
# Run tests with coverage
bun test --coverage
```typescript
const info = provider.getInfo();
// { name, version, models, maxContextLength, supportsStreaming, capabilities }
```
### Test Coverage
Model lists in `info.models` are example values — refer to each vendor's docs for the current authoritative list. The library accepts any model string the underlying SDK supports.
- ✅ Provider initialization and configuration
- ✅ Message validation and conversion
- ✅ Error handling and normalization
- ✅ Response formatting
- ✅ Streaming functionality
- ✅ Structured response types
- ✅ Factory functions
- ✅ Provider registry
## Architecture (brief)
## 🛠️ Development
The library uses a template-method base class (`BaseAIProvider`) that owns the public lifecycle (`initialize`, `complete`, `stream`), input validation, response-type parsing, and error normalization. Each provider supplies:
### Prerequisites
- `doInitialize()` / `doComplete()` / `doStream()` — the actual SDK calls
- `getModelNamePatterns()` — regexes for naming-convention warnings
- `sendValidationProbe()` — minimal request used during `initialize()`
- `mapProviderError()` / `providerErrorMessages()` — provider-specific error translation
- Node.js 18.0.0 or higher
- Bun (recommended) or npm/yarn
- TypeScript 5.0 or higher
`OpenWebUIProvider` additionally uses an internal strategy split (`OpenWebUIChatStrategy` vs `OpenWebUIOllamaStrategy`) selected by `useOllamaProxy`.
### Setup
## Development
```bash
# Clone the repository
git clone https://gitea.jleibl.net/jleibl/simple-ai-provider.git
cd simple-ai-provider
# Install dependencies
bun install
# Build the project
bun run build
```
# Run tests
bun test
Examples live in `examples/`:
# Run examples
```bash
bun run examples/basic-usage.ts
bun run examples/structured-response-types.ts
bun run examples/multi-provider.ts
bun run examples/structured-response-types.ts
```
### Project Structure
Tests in `tests/` use Bun's test runner (`bun test`). Note: post-refactor some tests need updating before they pass cleanly.
```text
src/
├── index.ts # Main entry point
├── types/
│ └── index.ts # Type definitions and utilities
├── providers/
│ ├── base.ts # Abstract base provider
│ ├── claude.ts # Claude provider implementation
│ ├── openai.ts # OpenAI provider implementation
│ ├── gemini.ts # Gemini provider implementation
│ ├── openwebui.ts # OpenWebUI provider implementation
│ └── index.ts # Provider exports
└── utils/
└── factory.ts # Factory functions and registry
## License
examples/
├── basic-usage.ts # Basic usage examples
├── structured-response-types.ts # Structured output examples
└── multi-provider.ts # Multi-provider examples
MIT — see [LICENSE](LICENSE).
tests/
├── claude.test.ts # Claude provider tests
├── openai.test.ts # OpenAI provider tests
├── gemini.test.ts # Gemini provider tests
└── openwebui.test.ts # OpenWebUI provider tests
```
## 🤝 Contributing
Contributions are welcome! Please feel free to submit a Pull Request. For major changes, please open an issue first to discuss what you would like to change.
### Development Guidelines
1. **Code Style**: Follow the existing TypeScript patterns
2. **Testing**: Add tests for new features
3. **Documentation**: Update README for new features
4. **Type Safety**: Maintain comprehensive type definitions
5. **Error Handling**: Use standardized error types
## 📄 License
MIT License - see the [LICENSE](LICENSE) file for details.
## 🔗 Links
## Links
- [Anthropic Claude API](https://docs.anthropic.com/claude/reference/)
- [Claude Code SDK](https://docs.anthropic.com/claude/docs/claude-code-sdk)
- [OpenAI API](https://platform.openai.com/docs/)
- [Google Gemini API](https://ai.google.dev/)
- [Google Gen AI SDK](https://ai.google.dev/)
- [OpenWebUI](https://openwebui.com/)
- [Gitea Repository](https://gitea.jleibl.net/jleibl/simple-ai-provider)
---
**Star this repo if you find it helpful!**
- [Repository](https://gitea.jleibl.net/jleibl/simple-ai-provider)

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bun.lock
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@@ -4,6 +4,7 @@
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"typescript": ["typescript@6.0.3", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw=="],
"undici-types": ["undici-types@7.24.6", "", {}, "sha512-WRNW+sJgj5OBN4/0JpHFqtqzhpbnV0GuB+OozA9gCL7a993SmU+1JBZCzLNxYsbMfIeDL+lTsphD5jN5N+n0zg=="],
"unpipe": ["unpipe@1.0.0", "", {}, "sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ=="],
"vary": ["vary@1.1.2", "", {}, "sha512-BNGbWLfd0eUPabhkXUVm0j8uuvREyTh5ovRa/dyow/BqAbZJyC+5fU+IzQOzmAKzYqYRAISoRhdQr3eIZ/PXqg=="],
"web-streams-polyfill": ["web-streams-polyfill@3.3.3", "", {}, "sha512-d2JWLCivmZYTSIoge9MsgFCZrt571BikcWGYkjC1khllbTeDlGqZ2D8vD8E/lJa8WGWbb7Plm8/XJYV7IJHZZw=="],
"which": ["which@2.0.2", "", { "dependencies": { "isexe": "^2.0.0" }, "bin": { "node-which": "./bin/node-which" } }, "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA=="],
"wrappy": ["wrappy@1.0.2", "", {}, "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="],
"ws": ["ws@8.20.1", "", { "peerDependencies": { "bufferutil": "^4.0.1", "utf-8-validate": ">=5.0.2" }, "optionalPeers": ["bufferutil", "utf-8-validate"] }, "sha512-It4dO0K5v//JtTXuPkfEOaI3uUN87iYPnqo/ZzqCoG3g8uhA66QUMs/SrM0YK7/NAu+r4LMh/9dq2A7k+rHs+w=="],
"zod": ["zod@4.4.3", "", {}, "sha512-ytENFjIJFl2UwYglde2jchW2Hwm4GJFLDiSXWdTrJQBIN9Fcyp7n4DhxJEiWNAJMV1/BqWfW/kkg71UDcHJyTQ=="],
"zod-to-json-schema": ["zod-to-json-schema@3.25.2", "", { "peerDependencies": { "zod": "^3.25.28 || ^4" } }, "sha512-O/PgfnpT1xKSDeQYSCfRI5Gy3hPf91mKVDuYLUHZJMiDFptvP41MSnWofm8dnCm0256ZNfZIM7DSzuSMAFnjHA=="],
"bun-types/@types/node": ["@types/node@24.12.4", "", { "dependencies": { "undici-types": "~7.16.0" } }, "sha512-GUUEShf+PBCGW2KaXwcIt3Yk+e3pkKwWKb9GSyM9WQVE+ep2jzmHdGsHzu4wgcZy5fN9FBdVzjpBQsYlpfpgLA=="],
"type-is/content-type": ["content-type@2.0.0", "", {}, "sha512-j/O/d7GcZCyNl7/hwZAb606rzqkyvaDctLmckbxLzHvFBzTJHuGEdodATcP3yIRoDrLHkIATJuvzbFlp/ki2cQ=="],
"bun-types/@types/node/undici-types": ["undici-types@7.16.0", "", {}, "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw=="],
}
}

View File

@@ -21,8 +21,8 @@
"build": "bun run build:clean && bun run build:types && bun run build:esm && bun run build:cjs",
"build:clean": "rm -rf dist",
"build:types": "tsc --project tsconfig.build.json",
"build:esm": "bun build src/index.ts --outfile dist/index.mjs --format esm",
"build:cjs": "bun build src/index.ts --outfile dist/index.js --format cjs",
"build:esm": "bun build src/index.ts --outfile dist/index.mjs --format esm --target node",
"build:cjs": "bun build src/index.ts --outfile dist/index.js --format cjs --target node",
"dev": "bun run src/index.ts",
"test": "bun test",
"prepublishOnly": "bun run build"
@@ -52,6 +52,7 @@
"url": "https://gitea.jleibl.net/jleibl/simple-ai-provider.git"
},
"dependencies": {
"@anthropic-ai/claude-agent-sdk": "^0.3.146",
"@anthropic-ai/sdk": "^0.97.0",
"@google/genai": "^2.5.0",
"openai": "^6.0.0"

View File

@@ -16,7 +16,8 @@ export const DEFAULT_MODELS = {
claude: 'claude-3-5-sonnet-20241022',
openai: 'gpt-4o',
gemini: 'gemini-2.5-flash',
openwebui: 'llama3.1:latest'
openwebui: 'llama3.1:latest',
'claude-code': 'sonnet'
} as const;
export const DEFAULT_OPENWEBUI_BASE_URL = 'http://localhost:3000';

View File

@@ -38,6 +38,7 @@ export { ClaudeProvider, type ClaudeConfig } from './providers/claude.js';
export { OpenAIProvider, type OpenAIConfig } from './providers/openai.js';
export { GeminiProvider, type GeminiConfig } from './providers/gemini.js';
export { OpenWebUIProvider, type OpenWebUIConfig } from './providers/openwebui.js';
export { ClaudeCodeProvider, type ClaudeCodeConfig } from './providers/claude-code.js';
// Factory utilities
export {
@@ -46,6 +47,7 @@ export {
createOpenAIProvider,
createGeminiProvider,
createOpenWebUIProvider,
createClaudeCodeProvider,
type ProviderType,
PROVIDER_REGISTRY
} from './utils/factory.js';
@@ -53,7 +55,7 @@ export {
/**
* List of all supported providers
*/
export const SUPPORTED_PROVIDERS = ['claude', 'openai', 'gemini', 'openwebui'] as const;
export const SUPPORTED_PROVIDERS = ['claude', 'openai', 'gemini', 'openwebui', 'claude-code'] as const;
/**
* Package version

View File

@@ -0,0 +1,371 @@
/**
* Claude Code Provider
*
* Wraps `@anthropic-ai/claude-agent-sdk` so consumers can use a local
* Claude Code installation — including Claude Pro/Max subscription
* accounts authenticated via `claude login` — through the same
* BaseAIProvider interface as the other providers.
*
* Tradeoffs vs the direct Anthropic API provider:
* - Authenticates via the local CLI, so subscription users (no API key)
* can use it.
* - Requires `claude` to be installed and logged in on the host.
* - Higher latency (shells out to a CLI process per request).
* - Designed for agent workflows, but used here in single-turn mode
* (maxTurns: 1, no tools) for plain text completion.
*
* @see https://docs.anthropic.com/claude/docs/claude-code-sdk
*/
import { query } from '@anthropic-ai/claude-agent-sdk';
import type {
AIMessage,
AIProviderConfig,
CompletionChunk,
CompletionParams,
CompletionResponse,
ProviderInfo
} from '../types/index.js';
import { BaseAIProvider } from './base.js';
import { AIProviderError, AIErrorType } from '../types/index.js';
import { DEFAULT_MODELS } from '../constants.js';
/**
* Configuration for the Claude Code provider. `apiKey` is optional —
* when omitted the SDK falls back to ANTHROPIC_API_KEY in the
* environment or the local subscription credentials managed by the
* `claude` CLI.
*/
export interface ClaudeCodeConfig extends Omit<AIProviderConfig, 'apiKey'> {
apiKey?: string;
/**
* Default model. Accepts SDK aliases (`'sonnet'`, `'opus'`, `'haiku'`,
* `'inherit'`) or any full Claude model ID.
* @default 'sonnet'
*/
defaultModel?: string;
/**
* Working directory for the Claude Code session.
* @default process.cwd()
*/
cwd?: string;
/**
* Tool names the model is allowed to call. Defaults to none, which
* makes the provider behave as a pure text completion endpoint.
*/
allowedTools?: string[];
/**
* Maximum agent turns. Defaults to 1 for plain completion; raise this
* if you also pass `allowedTools` and want tool-use loops.
* @default 1
*/
maxTurns?: number;
}
export class ClaudeCodeProvider extends BaseAIProvider {
private readonly defaultModel: string;
private readonly cwd: string | undefined;
private readonly allowedTools: string[];
private readonly maxTurns: number;
constructor(config: ClaudeCodeConfig) {
super(config as AIProviderConfig);
this.defaultModel = config.defaultModel || DEFAULT_MODELS['claude-code'];
this.cwd = config.cwd;
this.allowedTools = config.allowedTools ?? [];
this.maxTurns = config.maxTurns ?? 1;
}
/**
* apiKey is optional for this provider — the SDK reads
* ANTHROPIC_API_KEY from the environment or falls back to the local
* Claude Code credentials. We override the base validator to skip the
* non-empty apiKey requirement.
*/
protected override validateAndNormalizeConfig(config: AIProviderConfig): AIProviderConfig {
if (!config) {
throw new AIProviderError(
'Configuration object is required',
AIErrorType.INVALID_REQUEST
);
}
if (config.apiKey !== undefined && (typeof config.apiKey !== 'string')) {
throw new AIProviderError(
'API key, when provided, must be a string',
AIErrorType.INVALID_REQUEST
);
}
return {
...config,
apiKey: config.apiKey ?? '',
timeout: config.timeout,
maxRetries: config.maxRetries
};
}
protected async doInitialize(): Promise<void> {
// The SDK lazy-spawns the CLI per query; no connection probe is
// necessary (and a probe would cost a real billed turn). We defer
// auth/model errors to the first complete()/stream() call.
if (this.config.apiKey) {
process.env.ANTHROPIC_API_KEY = this.config.apiKey;
}
}
protected async doComplete(params: CompletionParams): Promise<CompletionResponse<string>> {
const { systemPrompt, prompt } = this.buildPrompt(params.messages);
const model = params.model || this.defaultModel;
let collectedText = '';
let sessionId = '';
let usage = { promptTokens: 0, completionTokens: 0, totalTokens: 0 };
for await (const message of query({
prompt,
options: this.buildOptions(model, systemPrompt)
})) {
if (message.type === 'system' && message.subtype === 'init') {
sessionId = message.session_id;
continue;
}
if (message.type === 'assistant') {
if (message.error) {
throw this.errorForSdkAssistantError(message.error);
}
collectedText += extractText(message.message.content);
continue;
}
if (message.type === 'result') {
usage = {
promptTokens: message.usage?.input_tokens ?? 0,
completionTokens: message.usage?.output_tokens ?? 0,
totalTokens: (message.usage?.input_tokens ?? 0) + (message.usage?.output_tokens ?? 0)
};
if (message.subtype !== 'success') {
throw new AIProviderError(
`Claude Code session ended without a successful result: ${message.subtype}`,
AIErrorType.UNKNOWN
);
}
return {
content: collectedText || message.result,
model,
usage,
id: sessionId || message.uuid,
metadata: {
costUsd: message.total_cost_usd,
durationMs: message.duration_ms,
numTurns: message.num_turns,
stopReason: message.stop_reason
}
};
}
}
throw new AIProviderError(
'Claude Code stream ended without a result message',
AIErrorType.UNKNOWN
);
}
protected async *doStream<T = any>(
params: CompletionParams<T>
): AsyncIterable<CompletionChunk> {
const { systemPrompt, prompt } = this.buildPrompt(params.messages);
const model = params.model || this.defaultModel;
let sessionId = '';
let yieldedText = '';
for await (const message of query({
prompt,
options: this.buildOptions(model, systemPrompt)
})) {
if (message.type === 'system' && message.subtype === 'init') {
sessionId = message.session_id;
continue;
}
if (message.type === 'assistant') {
if (message.error) {
throw this.errorForSdkAssistantError(message.error);
}
const fullText = extractText(message.message.content);
const delta = fullText.slice(yieldedText.length);
if (delta) {
yield { content: delta, isComplete: false, id: sessionId };
yieldedText = fullText;
}
continue;
}
if (message.type === 'result') {
const usage = {
promptTokens: message.usage?.input_tokens ?? 0,
completionTokens: message.usage?.output_tokens ?? 0,
totalTokens: (message.usage?.input_tokens ?? 0) + (message.usage?.output_tokens ?? 0)
};
if (message.subtype !== 'success') {
throw new AIProviderError(
`Claude Code session ended without a successful result: ${message.subtype}`,
AIErrorType.UNKNOWN
);
}
yield { content: '', isComplete: true, id: sessionId, usage };
return;
}
}
}
public getInfo(): ProviderInfo {
return {
name: 'Claude Code',
version: '1.0.0',
models: ['sonnet', 'opus', 'haiku', 'inherit'],
maxContextLength: 200000,
supportsStreaming: true,
capabilities: {
vision: true,
functionCalling: true,
systemMessages: true,
reasoning: true,
codeGeneration: true,
subscriptionAuth: true,
requiresLocalCli: true
}
};
}
protected override mapProviderError(error: any): AIProviderError | null {
if (!error) return null;
const message: string = error.message || '';
if (message.includes('ENOENT') && message.toLowerCase().includes('claude')) {
return new AIProviderError(
'Claude Code CLI not found. Install it from https://docs.anthropic.com/claude/docs/claude-code and run `claude login` for subscription accounts.',
AIErrorType.INVALID_REQUEST,
undefined,
error
);
}
if (message.includes('not logged in') || message.includes('authentication')) {
return new AIProviderError(
'Claude Code is not authenticated. Run `claude login` or set ANTHROPIC_API_KEY in the environment.',
AIErrorType.AUTHENTICATION,
undefined,
error
);
}
return null;
}
private buildPrompt(messages: AIMessage[]): { systemPrompt: string | undefined; prompt: string } {
let systemPrompt: string | undefined;
const turns: AIMessage[] = [];
for (const msg of messages) {
if (msg.role === 'system') {
systemPrompt = systemPrompt ? `${systemPrompt}\n\n${msg.content}` : msg.content;
} else {
turns.push(msg);
}
}
if (turns.length === 0) {
throw new AIProviderError(
'At least one user or assistant message is required',
AIErrorType.INVALID_REQUEST
);
}
// Single user turn: pass the content directly. Multi-turn history is
// flattened with role labels — the Agent SDK doesn't accept a
// messages array in stateless mode, so this is the simplest faithful
// representation of the conversation.
if (turns.length === 1 && turns[0]!.role === 'user') {
return { systemPrompt, prompt: turns[0]!.content };
}
const flattened = turns
.map(t => `${t.role === 'assistant' ? 'Assistant' : 'Human'}: ${t.content}`)
.join('\n\n');
return { systemPrompt, prompt: `${flattened}\n\nAssistant:` };
}
private buildOptions(model: string, systemPrompt: string | undefined) {
const options: Record<string, unknown> = {
model,
maxTurns: this.maxTurns,
allowedTools: this.allowedTools
};
if (systemPrompt) options.systemPrompt = systemPrompt;
if (this.cwd) options.cwd = this.cwd;
return options as any;
}
private errorForSdkAssistantError(code: string): AIProviderError {
const map: Record<string, { type: AIErrorType; message: string }> = {
authentication_failed: {
type: AIErrorType.AUTHENTICATION,
message: 'Claude Code authentication failed. Run `claude login` or set ANTHROPIC_API_KEY.'
},
oauth_org_not_allowed: {
type: AIErrorType.AUTHENTICATION,
message: 'Your organization is not allowed by the Claude Code OAuth policy.'
},
billing_error: {
type: AIErrorType.AUTHENTICATION,
message: 'Billing error. Check your Anthropic account billing or subscription status.'
},
rate_limit: {
type: AIErrorType.RATE_LIMIT,
message: 'Rate limit exceeded.'
},
invalid_request: {
type: AIErrorType.INVALID_REQUEST,
message: 'Invalid request to Claude Code.'
},
model_not_found: {
type: AIErrorType.MODEL_NOT_FOUND,
message: 'Requested model is not available to this Claude Code installation.'
},
server_error: {
type: AIErrorType.NETWORK,
message: 'Claude Code server error. Try again shortly.'
},
max_output_tokens: {
type: AIErrorType.INVALID_REQUEST,
message: 'Response exceeded the configured maxOutputTokens.'
}
};
const entry = map[code] ?? { type: AIErrorType.UNKNOWN, message: `Claude Code error: ${code}` };
return new AIProviderError(entry.message, entry.type);
}
}
function extractText(content: unknown): string {
if (!Array.isArray(content)) return '';
let out = '';
for (const block of content) {
if (block && typeof block === 'object' && (block as any).type === 'text') {
out += (block as any).text ?? '';
}
}
return out;
}

View File

@@ -8,3 +8,4 @@ export { ClaudeProvider, type ClaudeConfig } from './claude.js';
export { OpenAIProvider, type OpenAIConfig } from './openai.js';
export { GeminiProvider, type GeminiConfig } from './gemini.js';
export { OpenWebUIProvider, type OpenWebUIConfig } from './openwebui.js';
export { ClaudeCodeProvider, type ClaudeCodeConfig } from './claude-code.js';

View File

@@ -6,13 +6,15 @@ import { ClaudeProvider, type ClaudeConfig } from '../providers/claude.js';
import { OpenAIProvider, type OpenAIConfig } from '../providers/openai.js';
import { GeminiProvider, type GeminiConfig } from '../providers/gemini.js';
import { OpenWebUIProvider, type OpenWebUIConfig } from '../providers/openwebui.js';
import { ClaudeCodeProvider, type ClaudeCodeConfig } from '../providers/claude-code.js';
import { BaseAIProvider } from '../providers/base.js';
export const PROVIDER_REGISTRY = {
claude: ClaudeProvider,
openai: OpenAIProvider,
gemini: GeminiProvider,
openwebui: OpenWebUIProvider
openwebui: OpenWebUIProvider,
'claude-code': ClaudeCodeProvider
} as const;
export type ProviderType = keyof typeof PROVIDER_REGISTRY;
@@ -22,6 +24,7 @@ export interface ProviderConfigMap {
openai: OpenAIConfig;
gemini: GeminiConfig;
openwebui: OpenWebUIConfig;
'claude-code': ClaudeCodeConfig;
}
export function createProvider<T extends ProviderType>(
@@ -59,3 +62,9 @@ export function createGeminiProvider(
export function createOpenWebUIProvider(config: OpenWebUIConfig): OpenWebUIProvider {
return new OpenWebUIProvider(config);
}
export function createClaudeCodeProvider(
options: Partial<ClaudeCodeConfig> = {}
): ClaudeCodeProvider {
return new ClaudeCodeProvider(options);
}