silicon.mu

Claude, GPT and Grok.
Paid in rupees.

API access for Claude Code, Cursor, Cline and Codex CLI. A free Rs 100 test key, one per person.

DM API to @silicon.mu on Instagram. Keys usually arrive within 15 minutes.

Your key

The key is your account and your balance. Don't share it.

Remember on this device. Stored only in this browser. Leave unticked and it stays for this visit.

Paste your key to see what is left.

Setup

The snippets fill in once you enter your key. Step-by-step guide for each tool.

Claude Code

export ANTHROPIC_BASE_URL=https://api.siliconmu.xyz
export ANTHROPIC_AUTH_TOKEN=sk-silicon-your-key
export ANTHROPIC_MODEL=claude-opus-5-5
export ANTHROPIC_DEFAULT_HAIKU_MODEL=claude-sonnet-5-5

Cursor, Cline, Codex CLI

Base URL: https://api.siliconmu.xyz/v1
API key: sk-silicon-your-key

Models:
claude-opus-5-5
claude-sonnet-5-5
claude-fable-5-1
gpt-6-astra
gpt-6.1-sol
grok-4.7

Rates

Rs per 1M tokens, in and out.
Model	In	Out
Claude Opus 5.5claude-opus-5-5	70	350
Claude Sonnet 5.5claude-sonnet-5-5	48	240
Claude Fable 5.1claude-fable-5-1	175	880
GPT-6 Astragpt-6-astra	125	615
GPT-6.1 Solgpt-6.1-sol	25	125
Grok 4.7grok-4.7	35	105

Cached input is cheaper. Coding tools mostly send cached input.

Top up

From Rs 500 by Juice. DM @silicon.mu. No subscription.