OpusX

Full Claude Lineup — One API Key

Opus 4.7, Sonnet & HaikuReady in 60 Seconds

Get instant access to the full Claude model lineup. Drop-in Anthropic API compatible — just swap your base URL and start coding with Claude Code, Cursor, or any SDK.

Streaming SSE  •  Per-Key Budgets  •  Prompt Caching

claude-code — bash

$ export ANTHROPIC_BASE_URL=https://opusx.vercel.app/api

$ export ANTHROPIC_API_KEY=sk-ant-ox-...

$ claude

✓ Connected to OpusX Gateway

Model: claude-sonnet-4-6

Budget: 2.4M / 5M tokens

Window: 4h 12m remaining

Everything you need to manage AI access

Per-Key Token Budgets

Set 5-hour rolling window limits per API key. Automatic resets — no manual intervention.

Usage Tracking

Every request logged with model, tokens, latency, and status. Full admin dashboard.

Key Isolation

Each key gets independent rate limits, budgets, and expiry. Multi-tenant by default.

Streaming Support

Full SSE streaming pass-through. First tokens arrive instantly — zero buffering.

Drop-in Compatible

Anthropic API-compatible. Works with Claude Code, Python SDK, TypeScript SDK.

Smart Caching

Prompt caching enabled by default. Cache tokens excluded from user budgets.

Start in 3 steps

1

Get Your Key

Receive an API key from your admin or reseller.

2

Set Base URL

Set ANTHROPIC_BASE_URL to https://opusx.vercel.app/api (includes /api).

3

Start Building

Use Claude Code, SDK, or cURL exactly like Anthropic API.

Full Claude lineup

Premium

Opus 4.7

claude-opus-4-7

Most capable flagship.

Popular

Sonnet 4.6

claude-sonnet-4-6

Best balance of speed and intelligence.

Fast

Haiku 4.5

claude-haiku-4-5-20251001

Fastest responses for high throughput.