perpad

An LLM agent reads live BTC and ETH prices from Hyperliquid, checks its account, then opens or closes isolated-margin perps. Every order passes a deterministic risk engine. Every thought, action and refusal is written to a hash-chained journal anyone can verify.

        ┌────────────┐  5 tools   ┌──────────────┐  clamp / deny  ┌────────────┐
 tick → │  Claude    │ ─────────▶ │ risk engine  │ ─────────────▶ │   venue    │ → Hyperliquid
        │  (agent)   │ ◀───────── │ (pure code)  │                │ live/paper │
        └─────┬──────┘  verdicts  └──────────────┘                └────────────┘
              └──────────── every step ──▶ hash-chained journal (JSONL)

Most trading-agent demos give a model an exchange key and hope. perpad inverts that. The model has five tools and no way to withdraw, transfer, change limits or use cross margin. The only path to an order runs through code that reads live exchange limits. If the model asks for 100x on a 40x market it gets 40x or a refusal, and the refusal is journaled.

git clone https://github.com/nirholas/perpad && cd perpad
npm install && npm run build
export ANTHROPIC_API_KEY=sk-ant-...
node dist/cli.js run examples/btc-eth.json --once
node dist/cli.js verify journal/tidewatcher.jsonl

Paper mode uses real Hyperliquid prices with simulated fills, the 0.045% taker fee and isolated liquidation. Going live needs HL_PRIVATE_KEY (a Hyperliquid API wallet, which can trade but not withdraw), HL_ACCOUNT_ADDRESS, and both --live --i-understand-real-funds. Try "testnet": true first.

import { Agent, Journal, PaperVenue, HyperliquidPrices } from "perpad";

const venue = new PaperVenue(new HyperliquidPrices(), 1000);
await new Agent(config, venue, new Journal("journal/a.jsonl")).tick();

import { evaluate } from "perpad";
evaluate(
  { coin: "BTC", side: "long", leverage: 100, marginUsd: 900 },
  { openCoins: [], withdrawableUsd: 1000, dailyPnlUsd: 0, exchangeMaxLeverage: { BTC: 40 } },
  { markets: ["BTC"], maxLeverage: 50, marginPerTradeUsd: 100, maxOpenPositions: 1 },
); // { allowed: true, adjusted: { leverage: 40, marginUsd: 100 } }

{ "mcpServers": { "perpad": { "command": "npx", "args": ["-y", "github:nirholas/perpad", "mcp", "journal/agent.jsonl"] } } }

v0.1 ships the trading core, journal, paper and live venues, MCP server and fee math, covered by 21 tests including a live Hyperliquid read. The Solana leg (claim pump.fun creator fees, swap, bridge, deposit to Hyperliquid), coin launch flow, buybacks and journal anchoring are on the roadmap. They are not shipped and nothing here pretends otherwise.

Leveraged perps can lose all margin quickly. This is software, not financial advice, and makes no profit claims. Read the security model and SECURITY.md. Independent project, not affiliated with Hyperliquid, pump.fun or Anthropic.

PRs welcome. See CONTRIBUTING.md. Questions and ideas go to Discussions.

npm test            # 21 tests, includes a live read-only Hyperliquid call
npm run typecheck
npm run site:build  # regenerates docs/ (GitHub Pages)

MIT © nirholas

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Coding agents and LLM tooling can read this repo directly: AGENTS.md, llms.txt, llms-full.txt. Point an agent at https://github.com/nirholas/perpad and it has the context it needs.

• All repositories by nirholas: the full catalog, grouped by topic
• three.ws: the platform for 3D AI agents with Solana wallets, a skill marketplace and x402 payments
• Questions or ideas: open an issue or start a discussion