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OpenAI-Compatible API — Drop-in /v1/chat/completions

Use an OpenAI-compatible API through ClaudeStore. Point the OpenAI SDK, Cline, Roo Code, Continue, or any custom base URL client at /v1/chat/completions.

Endpoint: POST /v1/chat/completions. Base URL: https://api3.claudestore.store/v1. Models: latest OpenAI models (e.g. gpt-5.5). Works with: OpenAI SDK, Cline, Roo, Continue.

TL;DR

ClaudeStore exposes a standard /v1/chat/completions endpoint for the OpenAI API. Change the base URL on any OpenAI client and set the model to gpt-5.5 — no code rewrite.

Drop-in example

TypeScript (openai SDK)typescript
import OpenAI from "openai";

const client = new OpenAI({
  apiKey: "sk-cs4-your-key",
  baseURL: "https://api3.claudestore.store/v1",
});

const resp = await client.chat.completions.create({
  model: "gpt-5.5",
  messages: [{ role: "user", content: "Explain async/await" }],
  stream: true,
});

Supported

  • Streaming (stream: true) and final usage chunks.
  • System messages and multi-turn conversations.
  • Function / tool calling in OpenAI format.
  • GET /v1/models for the live model list.

For per-IDE setup, see the OpenAI-Compatible IDEs guide.

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