Claude Code + DeepSeek V4 Building Tutorial: API Fees Dropped by 90% (15 Minutes)

Tutorial Objectives

Within 15 minutes, DeepClaude was used to switch the inference backend of Claude Code from Anthropic to DeepSeek V4 Pro, and the API fee was reduced from $15/M token to $0.87/M, saving more than 90% of the cost while maintaining complete independent coding capabilities.

What will you build?

• DeepClaude installation and configuration - one command to complete
• Multiple backend switching capabilities - DeepSeek, OpenRouter can be switched at will
• Remote control mode - control Claude Code from the browser
• VS Code integration — one-click switching within the IDE

Preparation list

• DeepSeek API Key (free registration, minimum deposit of $5)
• Claude Code CLI (installed, with Anthropic account)
• macOS/Linux Terminal (PowerShell is also supported on Windows)

Overall architecture

The entire system only replaces the "brain", no hands or feet are touched. Claude Code's tooling loop (file editing, bash execution, git operations) remains the same, with API calls directed to DeepSeek.

Step 1: Obtain DeepSeek API Key

Visit platform.deepseek.com to register an account, click API Keys to create a new key, recharge $5-$10 and copy the key.

export DEEPSEEK_API_KEY="sk-your-key-here"

**** ~/.bashrc ~/.zshrc 。

2 DeepClaude

git clone https://github.com/aattaran/deepclaude.git
cd deepclaude
chmod +x deepclaude.sh
sudo ln -s "$(pwd)/deepclaude.sh" /usr/local/bin/deepclaude

3 DeepClaude

deepclaude Claude Code CLI， API DeepSeek V4 Pro（$0.87/M output token）。

4

deepclaude --backend ds # DeepSeek（）
deepclaude --backend or # OpenRouter（）
deepclaude --backend fw # Fireworks AI（）
deepclaude --backend anthropic # Anthropic Opus

5 （）

，Claude Code /deepseek ，。

6

deepclaude --remote

Claude Code，。

DeepClaude Claude Code ？

，。 80% DeepSeek Claude Opus 。

？ Anthropic ？

。 --backend anthropic。Claude Code CLI ， API DeepSeek。

Claude Code、DeepSeek、OpenRouter、Fireworks AI、Anthropic

Reference link

• DeepClaude GitHub
• DeepSeek Platform

Internal link guidance

• Someone has successfully practiced it: Claude Code 48 hours to start a business: one person + US$29 monthly fee, monthly income in 3 months $9,000
• Newbies should read the tutorial first: DeepSeek V4 vs Claude Code: 90% Cheaper, Same Quality

Claude Code topic related tutorials

• DeepSeek V4 vs Claude Code: 90% Cheaper, Same Quality
• Claude Code automated writing practice: build an AI content production pipeline in 30 minutes
• Complete GitHub Copilot Price Guide 2026: Comparison of measured costs for each package after charging based on usage
• How to turn off signature in VS Code Copilot AI: remove Co-Authored-by with one line of command
• DeepSeek R2 Review: 1.7T Params vs GPT-5 Benchmarks
• DeepSeek Reasonix in action: Build an AI programming agent at zero cost (30-minute tutorial)
• DeepSeek V4 vs Claude Code: 90% Cheaper, Same Quality
• Running a 70B large model locally is not a dream: Intel AutoRound quantitative practical tutorial