Skip to main content
Compatible with the OpenAI standard format
One API Key, call multiple AI models
Seamlessly switch between GPT, Claude, Gemini, and other models. Projects already using the OpenAI SDK only need to replace the endpoint address and key to connect.

​
Supported Capabilities

Chat

Supports ChatCompletions, Responses, and text completion formats.

Embeddings and Reranking

Text vectorization and document reranking for RAG, search ranking, and similar scenarios.

Images

Image generation and image editing, compatible with the OpenAI Images API.

Audio

Audio synthesis, audio transcription, and audio translation.

Video

Create video generation tasks and query task status.

Moderation

Check whether text content violates usage policies.

​
Three-Step Integration

1

Register and log in

Visit https://t.ato2.nodesms.com to register an account.
2

Create an API Key

Create a token on the token management page and copy the Key starting with sk-.
3

Send a request

Set the SDK base_url to https://t.ato2.nodesms.com/v1 and start calling. See Quickstart for details.
Last modified on October 28, 2026