Papertrade AI
Trade Papertrade BTC and ETH perps from Claude, ChatGPT, Codex, Cursor, Gemini CLI, VS Code and any MCP client.
Open-source Model Context Protocol server with live markets, wallet analytics, liquidation maps, and guarded trading through non-custodial session keys.
https://papertrade-ai.ninabrekkerese.workers.dev/mcp
One URL, OAuth 2.1, no API keys. Your wallet signs once to register a session key that can trade but cannot withdraw, and the server enforces the limits you choose: margin per trade, leverage, daily size, open positions and markets. Every trade is previewed and needs your confirmation.
What you can ask
- "What are BTC and ETH doing on Papertrade right now?"
- "Show me the Papertrade liquidation map for ETH."
- "Who are the top 10 Papertrade traders this week? What are they holding?"
- "Analyze wallet 0x...: win rate, biggest trade, equity curve."
- "If I long BTC with $20 at 500x, where is my liquidation price?"
- "Preview a $15 ETH short at 800x, then open it if I confirm."
- "Close all my BTC positions."
On clients with MCP Apps support (Claude, ChatGPT, VS Code, Goose) results render as an interactive trading card with a live chart.
Install
| Client | Install |
|---|---|
| Claude (web, desktop, mobile) | Settings, Connectors, Add custom connector, paste https://papertrade-ai.ninabrekkerese.workers.dev/mcp. Guide |
| Claude Code | /plugin marketplace add nirholas/papertrade-ai then /plugin install papertrade-ai@papertrade-ai, or claude mcp add --transport http papertrade https://papertrade-ai.ninabrekkerese.workers.dev/mcp Guide |
| ChatGPT | Settings, Apps, Advanced settings, Developer mode, Create app, paste the URL, OAuth. Guide |
| OpenAI Codex | codex mcp add papertrade --url https://papertrade-ai.ninabrekkerese.workers.dev/mcp then codex mcp login papertrade Guide |
| Cursor | One-click install Guide |
| VS Code (Copilot) | One-click install or code --add-mcp '{"name":"papertrade","type":"http","url":"https://papertrade-ai.ninabrekkerese.workers.dev/mcp"}' Guide |
| Gemini CLI | gemini extensions install https://github.com/nirholas/papertrade-ai Guide |
| Claude Desktop (local) | Download papertrade-ai.mcpb from Releases and open it. |
| Windsurf, Zed, Cline, Goose, LibreChat, others | Streamable HTTP URL above, or stdio npx -y papertrade-ai. Guide |
Local (stdio)
{
"mcpServers": {
"papertrade": { "command": "npx", "args": ["-y", "papertrade-ai"] }
}
}
Run npx -y papertrade-ai login once to connect a wallet in your browser. Credentials stay in ~/.config/papertrade-ai (mode 0600). CLI guide
Tools
| Tool | Access | What it does |
|---|---|---|
get_markets |
public | Live Papertrade perp markets (BTC, ETH): Hyperliquid mark/bid/ask, 24h change, Papertrade 24h volume, open interest vs caps, max leverage, minimum trade size and whether each market is open. |
get_price_chart |
public | OHLCV candles for BTC or ETH from Hyperliquid (the price source Papertrade settles against), with range stats and a TradingView link. |
get_protocol_stats |
public | Papertrade protocol analytics: TVL, margin, LP, lifetime volume, open positions, fees, PAPER supply and staking, plus daily history (volume, trader PnL, liquidations, users). |
get_liquidation_map |
public | Where open Papertrade positions get liquidated: notional and position count of longs and shorts by price bucket around the current price, with the largest clusters. |
get_leaderboard |
public | Papertrade trader leaderboard for a time window, sortable by PnL, volume, balance and more. |
get_top_trades |
public | The most profitable individual Papertrade positions in a window: who, market, side, leverage, entry, exit and PnL. |
get_recent_trades |
public | The latest opens, closes and liquidations across all of Papertrade, optionally filtered by market or wallet. |
get_account |
public | A Papertrade account: free balance, locked margin, equity, every open position with live estimated PnL, bust price and distance to liquidation, pending intents, session keys and lifetime stats. |
get_trade_history |
public | Closed and liquidated positions for a wallet, newest first, with entry, exit, settled PnL, fees and PAPER minted. |
get_portfolio_history |
public | Equity curve for a wallet over 1h, 1d, 1w or all time. |
calculate_position |
public | Pure math for a hypothetical position: bust price, liquidation distance and settled PnL at a target exit, using the exchange formula (win curve, deadband, 2% win fee). |
get_deposit_info |
public | How to fund a Papertrade account: the wallet's personal deposit proxy address (USDC on HyperCore spot), minimums, the activation fee, and the wallet's current HyperEVM USDC/HYPE balances. |
get_trading_permissions |
public | What this connection may do: connected wallet, whether a trading session is active and when it expires, the guardrails the owner set, and how much of the daily limit is used. |
preview_trade |
trading | Step 1 of 2 for opening a position. |
open_position |
trading | Step 2 of 2: opens a real Papertrade position with the user's funds, signed by the delegated session key. |
close_positions |
trading | Closes open positions at the market, signed by the session key. |
cancel_intent |
trading | Cancels a submitted intent that is still queued (not yet executed). |
get_intent_status |
public | Whether a submitted intent is still queued, has produced an open position, or is no longer pending. |
Full inputs and annotations: Tool reference. Public tools also work over plain HTTPS:
curl https://papertrade-ai.ninabrekkerese.workers.dev/api/v1/tools/get_markets
curl "https://papertrade-ai.ninabrekkerese.workers.dev/api/v1/tools/get_liquidation_map?market=ETH"
OpenAPI 3.1 at /openapi.json, ready for GPT Actions and agent frameworks. Unauthenticated MCP for read-only agents: https://papertrade-ai.ninabrekkerese.workers.dev/public/mcp.
Security
- Non-custodial. Your wallet signs one EIP-712
RegisterSessionKeymessage, the same one the official Papertrade app signs for one-click trading. The session key is scoped by the exchange contract to open, close and cancel. It cannot withdraw or transfer. - Guardrails in code, not in the prompt. Margin per trade, leverage, rolling 24h position size, open positions and markets are checked on the server before any intent is signed.
- Preview, then confirm.
open_positionneeds a signed quote frompreview_tradefor the identical trade, valid for 3 minutes. - Encrypted per app. Each app's session key is encrypted with a key derived from that app's own access token.
- Revoke in one click at /account.
Read the full security model. Report vulnerabilities privately: SECURITY.md.
Develop and self-host
git clone https://github.com/nirholas/papertrade-ai && cd papertrade-ai
npm install
npm test # unit tests
npm run dev # local Worker on http://127.0.0.1:8787
Deploy your own copy to Cloudflare Workers with one KV namespace and one secret: Self-hosting. The package also exports the tool registry, policy engine and intent signing for use in your own agent: import { TOOLS, runTool } from 'papertrade-ai'.
| Path | What |
|---|---|
src/tools/registry.ts |
Every tool: schema, annotations, implementation |
src/core/ |
Papertrade API client, EIP-712 intents, bust price math |
src/worker/ |
Cloudflare Worker: OAuth provider, MCP, REST, pages |
src/cli.ts |
stdio server and login CLI |
src/web/ |
MCP Apps widget, connect and account pages |
docs/ |
Documentation (rendered to the website) |
scripts/build-site.mjs |
Website, llms.txt, sitemap, discovery files, manifests |
Risk
Papertrade positions use real USDC. At 1000x leverage a 0.1% move against you liquidates the position and the full margin is lost. Papertrade AI is independent open-source software, not affiliated with Papertrade, and not financial advice.
License
MIT
Support the project
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Built for AI agents too
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/papertrade-ai and it has the context it needs.
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