Claude Code without a subscription

Two environment variables and Claude Code runs through our API. You pay for the tokens you use.

No subscriptionTokens never expireAnthropic API370+ text modelsCard or crypto

Claude Code runs in your terminal and writes code with you. NeuralBox offers an Anthropic-compatible API: set our URL and key, and Claude Code works as before.

You pay per input and output token. The /model command switches Claude Code to any of 370+ text models: GPT, Gemini, DeepSeek, Qwen.

Prices per 1M tokens

Claude Sonnet 5.5

152,000 / 760,000 tokens

Input / output. The main coding model.

Claude Opus 5.5

304,000 / 1,520,000 tokens

Input / output. For hard refactoring.

DeepSeek V4.1 Flash

11,400 / 45,600 tokens

Input / output. For routine work via /model.

What you get

Anthropic-compatible API

Claude Code, the Anthropic SDK, Cline and Roo Code work unchanged.

Long sessions

A request can run up to 20 minutes.

How to connect

Create the key in your profile or on the API page after signing in.

URL

export ANTHROPIC_BASE_URL=https://neuralbox.io/api

Key

export ANTHROPIC_API_KEY=sk-nb-...

Parameters

Endpoints	/api/v1/messages (Anthropic), /api/v1/chat/completions (OpenAI)
Streaming	yes, requests up to 20 minutes

How much it costs

Per 1M model tokens	Tokens	USD
Claude Sonnet 5.5, input	152,000 tokens	≈ $5.07
Claude Sonnet 5.5, output	760,000 tokens	≈ $25.33
Claude Opus 5.5, input	304,000 tokens	≈ $10.13
Claude Opus 5.5, output	1,520,000 tokens	≈ $50.67
DeepSeek V4.1 Flash, input	11,400 tokens	≈ $0.38
DeepSeek V4.1 Flash, output	45,600 tokens	≈ $1.52

Prices in NeuralBox tokens per 1M model tokens. USD at the Basic rate: $5 = 150,000 tokens.

$5 by card gives 150,000 NeuralBox tokens. Enough to try it; for daily work pick a larger plan.

How to start

With Google, Telegram or email. Takes under a minute.

Top up

From $5 by card or from $2 in crypto. No subscription, and tokens never expire.

Generate

Create a key in your profile and set two environment variables.

Get an API key

FAQ

Do I need an Anthropic subscription?

No. You pay NeuralBox for the tokens you use.

Do I need a subscription?

No. You top up once and pay per generation. Tokens never expire.

Connect Claude Code

No subscription. Pay per generation, tokens never expire.

Start