Introduction
Get your Claude API key and access all Anthropic models — Opus, Sonnet & Haiku — through one unified gateway. Quick setup.
Base URL: https://api3.claudestore.store. Models: Opus 4.8, Opus 4.7, Sonnet 4.6, Haiku 4.5. API formats: Anthropic Messages + OpenAI Chat Completions. Auth: API3 key. Setup time: ~2 minutes.
Claude Code API by ClaudeStore is a unified API gateway that gives developers access to all available Anthropic Claude models through a single API key. It supports the Anthropic Messages API (POST /v1/messages) and the OpenAI Chat Completions API (POST /v1/chat/completions). The base URL is https://api3.claudestore.store. Available models include Claude Opus 4.8, Claude Opus 4.7, Sonnet 4.6, and Haiku 4.5. Short aliases opus, sonnet, haiku resolve to the latest version of each tier. Billing uses credits where 1 credit costs $0.005, and request deductions are computed from token usage at 91% below Anthropic's official pricing. Per-key controls cover allowed models, per-key rate limit (requests per minute), and a monthly credit cap.
What Claude Code API Provides
Claude Code API gives you Claude-compatible API access through one API key from the dashboard. It works with both the Anthropic Messages API and the OpenAI Chat Completions API, so you can plug it into SDKs, editors, agents, and automation tools that support a custom base URL.
| Area | What you get |
|---|---|
| Anthropic-compatible | POST /v1/messages with Anthropic-style request and SSE streaming |
| OpenAI-compatible | POST /v1/chat/completions and GET /v1/models |
| Claude models | Claude Opus 4.8, Opus 4.7, Sonnet 4.6, Haiku 4.5 |
| Tooling | Works with Cursor, Claude Code, VS Code extensions, SDKs, and cURL |
| Billing | 1 credit costs $0.005; request deductions follow token usage at about 91% below Anthropic (11× cheaper) official pricing |
| Key controls | Allowed models, per-key rate limit (requests/min), and monthly credit cap |
Recommended Model IDs
These are the stable IDs we recommend in docs and clients:
claude-opus-4.8— newest Opus model for long, complex coding and agent sessionsclaude-opus-4.7claude-sonnet-4.6claude-haiku-4.5
Legacy dated Anthropic IDs also resolve correctly. For new setups prefer the stable names above.
Short Aliases
For quick CLI experiments you can use short aliases that always resolve to the latest version of each tier:
opus→claude-opus-4.8sonnet→claude-sonnet-4.6haiku→claude-haiku-4.5
For production use pinned IDs — aliases will silently upgrade across major versions. See Models for full table.
Base URL Rules
- Anthropic SDK / raw Anthropic API: use
https://api3.claudestore.store/v1 - OpenAI SDK / Cursor / VS Code OpenAI-compatible tools: use
https://api3.claudestore.store/v1 - Claude Code: use
https://api3.claudestore.storeforANTHROPIC_BASE_URL(without/v1)