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$SIR plugin for Claude Code

Frontier models below list price, billed to your $SIR balance, from inside Claude Code.

claude plugin marketplace add mc1d/sir-plugin
claude plugin install sir@sir
export SIR_BASE_URL=https://<your gateway>/v1
export SIR_API_KEY=sk-sir-...
claude

What you get

sir_models

Every model on the gateway, its lab and list price

sir_ask

Ask any model: second opinions from GPT, Gemini or DeepSeek, cheap bulk work on sir-base

sir_balance, sir_usage

What the key can spend, and 30 days of spend by model

sir_referral

Your referral link and commission

sir_setup

Config for Cursor, Codex, Cline, Aider, opencode, Claude Desktop and any OpenAI SDK

sir_wallet_key

Make a key by signing locally with a Solana keypair. No sign-up

/sir:setup

Point Claude Code itself at $SIR, so every request is billed there

/sir:balance

Balance at a glance

/sir:second-opinion

Have another lab's model review the current plan or diff

Related MCP server: ask-another

Run Claude Code on $SIR

/sir:setup writes this for you, or set it yourself:

export ANTHROPIC_BASE_URL=https://<your gateway>      # no /v1: Claude Code adds /v1/messages
export ANTHROPIC_AUTH_TOKEN=$SIR_API_KEY
export ANTHROPIC_API_KEY=
claude

Claude model names map to $SIR models: opus to sir-frontier-plus, sonnet to sir-frontier, haiku to sir-base.

Other tools

The same MCP server runs anywhere MCP does:

{ "mcpServers": { "sir": { "command": "npx", "args": ["-y", "github:mc1d/sir-plugin"], "env": { "SIR_API_KEY": "sk-sir-...", "SIR_BASE_URL": "https://<your gateway>/v1" } } } }

sir/server/sir-mcp.mjs is a single bundled file with no dependencies, built from the $SIR monorepo. Needs Node 20 or newer.

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