Claude Code API: Use Claude Code with Hypereal

Claude Code API for real coding workflows

If you searched for "Claude code api", you probably want more than a generic chat endpoint. Claude Code is an agentic developer tool: it reads files, edits code, runs commands, streams long responses, uses tools, and depends on Anthropic-compatible Messages behavior. Hypereal offers a Claude Code API built for that exact workflow.

The core idea is simple. Keep the official Claude Code CLI or your existing Anthropic SDK client, then point the API base URL at Hypereal. Your prompts, tool calls, streaming logic, and coding-agent workflow stay the same, while your API key, billing, and model routing move to Hypereal.

Why use Hypereal as your Claude Code API

Hypereal is useful when you want Claude Code quality without managing several provider accounts or paying direct list prices for every coding session.

• Claude Code ready. Hypereal exposes an Anthropic-compatible /v1/messages API with streaming, tool use, system prompts, extended thinking, and prompt caching behavior needed by coding agents.
• Current Claude coding models. Use claude-opus-4-8 for deep refactors and architecture work, claude-sonnet-4-7 for everyday implementation, and claude-haiku-latest for quick subagent tasks.
• One account and one key. The same Hypereal dashboard gives you API keys, usage tracking, spending controls, and credits for coding and other AI workloads.
• Gateway control. Teams can route Claude Code, OpenCode, Cline, Aider, custom scripts, and raw HTTP calls through one stable API surface.

Claude Code API setup for the CLI

Install the official Claude Code CLI, create a Hypereal API key, and export the base URL before launching claude. For Claude Code, the base URL should be the host root. The CLI appends the Anthropic Messages path itself.

npm install -g @anthropic-ai/claude-code

export ANTHROPIC_BASE_URL="https://api.hypereal.cloud"
export ANTHROPIC_API_KEY="ck_your_hypereal_key"
export ANTHROPIC_DEFAULT_OPUS_MODEL="claude-opus-4-8"
export ANTHROPIC_DEFAULT_SONNET_MODEL="claude-sonnet-4-7"
export CLAUDE_CODE_SUBAGENT_MODEL="claude-sonnet-4-7"

claude

Do not add /v1 to ANTHROPIC_BASE_URL for the Claude Code CLI. Use /v1/messages only when you are calling the raw HTTP endpoint yourself. If your local Claude Code installation is configured for bearer-token mode, set ANTHROPIC_AUTH_TOKEN to the same Hypereal key and leave ANTHROPIC_API_KEY empty.

Raw Claude Code API calls

For direct HTTP, call Hypereal's Anthropic-compatible Messages endpoint. This is useful for custom coding agents, CI review bots, editor integrations, and server-side automation.

curl https://api.hypereal.cloud/v1/messages \
  -H "x-api-key: $HYPEREAL_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4-7",
    "max_tokens": 1200,
    "system": "You are a senior TypeScript refactoring assistant.",
    "messages": [
      {
        "role": "user",
        "content": "Review this diff and suggest the smallest safe fix."
      }
    ]
  }'

You can also use the official Anthropic SDK by changing the base URL and key:

import os
from anthropic import Anthropic

client = Anthropic(
    api_key=os.environ["HYPEREAL_API_KEY"],
    base_url="https://api.hypereal.cloud",
)

response = client.messages.create(
    model="claude-opus-4-8",
    max_tokens=2048,
    messages=[
        {
            "role": "user",
            "content": "Find the race condition in this worker queue and propose a patch.",
        }
    ],
)

print(response.content[0].text)

Which Claude Code API model should you choose

Choose the model by task depth, not by habit.

Claude Code API FAQ

Does Hypereal offer a Claude Code API? Yes. Hypereal provides an Anthropic-compatible API surface for Claude Code, Anthropic SDK clients, raw /v1/messages calls, and agentic coding tools that speak the Messages format.

Is this the same as replacing Claude Code? No. You can keep using the official Claude Code CLI. Hypereal acts as the API backend and gateway, so you change environment variables rather than rewriting your workflow.

Do I need a separate Anthropic account? No for Hypereal-routed calls. Create a Hypereal key, set the base URL and key, and choose the Claude model IDs exposed by Hypereal.

Where should I start? Create a key on hypereal.cloud, export ANTHROPIC_BASE_URL="https://api.hypereal.cloud", use claude-sonnet-4-7 for daily work, and switch to claude-opus-4-8 when the task needs deeper reasoning.