Harness

Harness is an open-source trading terminal for Solana — perps and spot from one account, with AI you hold the reins on.

Live at harness.trade.

Features

• Live Phoenix perps: candles, order book, tape, funding
• Trade from the chart: structure levels, click-to-trade, draggable TP/SL, rays + measure
• Jupiter spot swaps from the same account
• TP/SL orders, risk-based sizing, journal, alerts
• Funding wizard, daily recap card, verified-trader Discord

What's coming: the roadmap.

Quick Start

bun install
bun run dev

Open http://localhost:3000/terminal. Boots with zero env vars; set PUBLIC_PRIVY_APP_ID and PUBLIC_SOLANA_RPC_URL to enable the wallet and live trading. Platform secrets never belong in the browser.

User-supplied OpenAI, Anthropic, DeepSeek, and xAI/Grok keys require BLOB_READ_WRITE_TOKEN plus a server-only, 32-byte base64 LLM_PROFILE_ENCRYPTION_KEY. Generate one with openssl rand -base64 32. During key rotation, keep old keys temporarily in the comma-separated LLM_PROFILE_ENCRYPTION_KEY_PREVIOUS; profiles are re-encrypted lazily with the current key. Provider keys are encrypted with AES-256-GCM before storage and are never returned by the profile API after their one-time browser submission.

Development

bun run typecheck && bun run lint && bun run test
cd apps/portal && bun test
bun run build

apps/portal is the SvelteKit app (src/routes/terminal/ is the terminal); packages/ui is the shared design system. Conventions live in AGENTS.md.

Community

Discord · Issues · Roadmap

Open beta. Not financial advice — perps carry real risk of loss. Licensed under Apache-2.0.