npm package: @kreuzberg/liter-llm-wasm
Description: WebAssembly bindings for liter-llm — universal LLM API client with 142+ providers. Rust-powered.
Latest version: 1.2.0

# WebAssembly

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Universal LLM API client for browsers and WebAssembly runtimes. Access 143+ LLM providers with portable deployment across browsers, Deno, and Cloudflare Workers.


## Installation

### Package Installation


Install via one of the supported package managers:



**npm:**

```bash
npm install @kreuzberg/liter-llm-wasm
```




**pnpm:**

```bash
pnpm add @kreuzberg/liter-llm-wasm
```




**yarn:**

```bash
yarn add @kreuzberg/liter-llm-wasm
```





### System Requirements


- Modern browser with WebAssembly support, or Deno 1.0+, or Cloudflare Workers
- API keys via environment variables or runtime configuration



## Quick Start

### Basic Chat

Send a message to any provider using the `provider/model` prefix:

```typescript
import init, { LlmClient } from "@kreuzberg/liter-llm-wasm";

await init();

const client = new LlmClient({ apiKey: "sk-..." });
const response = await client.chat({
  model: "openai/gpt-4o",
  messages: [{ role: "user", content: "Hello!" }],
});

console.log(response.choices[0].message.content);
```


### Common Use Cases


#### Streaming Responses

Stream tokens in real time:

```typescript
import init, { LlmClient } from "@kreuzberg/liter-llm-wasm";

await init();

const client = new LlmClient({ apiKey: "sk-..." });
const stream = await client.chatStream({
  model: "openai/gpt-4o-mini",
  messages: [{ role: "user", content: "Hello" }],
});
// stream is a ReadableStream
```





### Next Steps

- **[Provider Registry](https://github.com/kreuzberg-dev/liter-llm/blob/main/schemas/providers.json)** - Full list of supported providers
- **[GitHub Repository](https://github.com/kreuzberg-dev/liter-llm)** - Source, issues, and discussions



## Features

### Supported Providers (143+)

Route to any provider using the `provider/model` prefix convention:

| Provider | Example Model |
|----------|--------------|
| **OpenAI** | `openai/gpt-4o`, `openai/gpt-4o-mini` |
| **Anthropic** | `anthropic/claude-3-5-sonnet-20241022` |
| **Groq** | `groq/llama-3.1-70b-versatile` |
| **Mistral** | `mistral/mistral-large-latest` |
| **Cohere** | `cohere/command-r-plus` |
| **Together AI** | `together/meta-llama/Meta-Llama-3.1-70B-Instruct-Turbo` |
| **Fireworks** | `fireworks/accounts/fireworks/models/llama-v3p1-70b-instruct` |
| **Google Vertex** | `vertexai/gemini-1.5-pro` |
| **Amazon Bedrock** | `bedrock/anthropic.claude-3-5-sonnet-20241022-v2:0` |

**[Complete Provider List](https://github.com/kreuzberg-dev/liter-llm/blob/main/schemas/providers.json)**

### Key Capabilities

- **Provider Routing** -- Single client for 143+ LLM providers via `provider/model` prefix
- **Local LLMs** — Connect to locally-hosted models via Ollama, LM Studio, vLLM, llama.cpp, and other local inference servers
- **Unified API** -- Consistent `chat`, `chat_stream`, `embeddings`, `list_models` interface

- **Streaming** -- Real-time token streaming via `chat_stream`


- **Tool Calling** -- Function calling and tool use across all supporting providers

- **Type Safe** -- Schema-driven types compiled from JSON schemas
- **Secure** -- API keys never logged or serialized, managed via environment variables
- **Observability** -- Built-in [OpenTelemetry](https://opentelemetry.io/docs/specs/semconv/gen-ai/) with GenAI semantic conventions
- **Error Handling** -- Structured errors with provider context and retry hints

### Performance

Built on a compiled Rust core for speed and safety:

- **Provider resolution** at client construction -- zero per-request overhead
- **Configurable timeouts** and connection pooling
- **Zero-copy streaming** with SSE and AWS EventStream support
- **API keys** wrapped in secure memory, zeroed on drop



## Provider Routing

Route to 143+ providers using the `provider/model` prefix convention:

```text
openai/gpt-4o
anthropic/claude-3-5-sonnet-20241022
groq/llama-3.1-70b-versatile
mistral/mistral-large-latest
```

See the [provider registry](https://github.com/kreuzberg-dev/liter-llm/blob/main/schemas/providers.json) for the full list.



## Proxy Server

liter-llm also ships as an OpenAI-compatible proxy server with Docker support:

```bash
docker run -p 4000:4000 -e LITER_LLM_MASTER_KEY=sk-your-key ghcr.io/kreuzberg-dev/liter-llm
```

See the [proxy server documentation](https://docs.liter-llm.kreuzberg.dev/server/proxy/) for configuration, CLI usage, and MCP integration.


## Documentation

- **[Documentation](https://docs.liter-llm.kreuzberg.dev)** -- Full docs and API reference
- **[GitHub Repository](https://github.com/kreuzberg-dev/liter-llm)** -- Source, issues, and discussions
- **[Provider Registry](https://github.com/kreuzberg-dev/liter-llm/blob/main/schemas/providers.json)** -- 143 supported providers

Part of [kreuzberg.dev](https://kreuzberg.dev).

## Contributing

Contributions are welcome! See [CONTRIBUTING.md](https://github.com/kreuzberg-dev/liter-llm/blob/main/CONTRIBUTING.md) for guidelines.

Join our [Discord community](https://discord.gg/xt9WY3GnKR) for questions and discussion.

## License

MIT -- see [LICENSE](https://github.com/kreuzberg-dev/liter-llm/blob/main/LICENSE) for details.