Gdex Trading

GDEX Trading Skill

Cross-chain DeFi trading infrastructure for AI agents. All trading goes through encrypted computedData payloads (AES-256-CBC) with managed-custody wallets on the Gbot Trading Dashboard backend (https://trade-api.gemach.io/v1).

Start here: Load gdex-onboarding for a full overview and quickstart guide.

Available Skills

Quick Decision Guide

• "Buy/sell a token" → Load gdex-authentication + gdex-spot-trading
• "Open a perp position" → Load gdex-authentication + gdex-perp-funding + gdex-perp-trading
• "Check token price or trending" → Load gdex-authentication + gdex-token-discovery
• "Check portfolio/balances" → Load gdex-authentication + gdex-portfolio
• "User has no wallet" → Load gdex-wallet-setup + gdex-authentication
• "Copy a trader" → Load gdex-authentication + gdex-copy-trading (sign-in must use chainId: 622112261)
• "Copy a perp trader" → Load gdex-authentication + gdex-perp-copy-trading (sign-in must use chainId: 1)
• "Bridge tokens" → Load gdex-authentication + gdex-bridge
• "Create a limit order" → Load gdex-authentication + gdex-limit-orders
• "Set a limit buy" → Load gdex-authentication + gdex-limit-orders (use limitBuy())
• "Set a take-profit/stop-loss sell" → Load gdex-authentication + gdex-limit-orders (use limitSell())
• "Build a trading UI" → Load gdex-ui-install-setup + gdex-ui-trading-components + gdex-ui-theming
• "Create a portfolio dashboard" → Load gdex-ui-install-setup + gdex-ui-portfolio-dashboard
• "Build a complete trading app" → Load gdex-ui-install-setup + gdex-ui-page-layouts + gdex-ui-wallet-connection + gdex-ui-theming
• "Debug an error" → Load gdex-sdk-debugging

Critical Notes (Live-Tested)

walletAddress = CONTROL address, NOT managed address. All HL write operations (hlCreateOrder, hlCloseAll, perpDeposit, etc.) require walletAddress set to the control wallet address used during sign-in — NOT the managed-custody address returned by /v1/user. The backend verifies the session key signature against the sign-in userId. Passing the managed address causes 400 Unauthorized (code 103).

hlCloseAll / /v1/hl/close_all_positions is unreliable. It frequently returns TIMEOUT or JSON parse errors. To close positions reliably, place a reduce-only hl_create_order sell/buy for the exact position size instead.

hlUpdateLeverage / /v1/hl/update_leverage is not implemented on the backend (returns 404). Leverage is set automatically when placing orders — pass the desired leverage indirectly via position sizing.

Solana chainId is 622112261, NOT 900. The correct Solana chain ID is ChainId.SOLANA = 622112261. Using 900 falls back to the EVM managed address with balance: null. The /v1/user endpoint returns a different managed wallet per chainId:

• chainId=1 → EVM managed: 0x9967...
• chainId=622112261 → Solana managed: CFSi4YimeCbfSNqH2WmHwJKwj1YYG1cWBtQyVPB4sCe1 (base58) Always use ChainId.SOLANA from the SDK's enum to avoid this mistake.

Solana Meteora swaps are broken (backend bug). Tokens that route through Meteora DLMM (e.g. BONK) fail with Program error: 1 because the backend doesn’t wrap SOL into WSOL before calling Swap2. Raydium-routed tokens work correctly (e.g. WIF). Check token.dexId — if it's "meteora", the swap will fail. Prefer tokens with isRaydium: true or dexId: "raydium".

Solana trades need ~0.01 SOL minimum. ATA (Associated Token Account) creation costs ~0.002 SOL per new token, plus priority fees (default 0.0005 SOL) and base tx fees. First trade on a new token needs ~0.007 SOL overhead beyond the swap amount.

Bridge endpoints use different paths than expected. The actual backend routes are GET /v1/bridge/estimate_bridge, POST /v1/bridge/request_bridge, and GET /v1/bridge/bridge_orders. The request_bridge endpoint requires ABI-encoded + signed + AES-encrypted computedData (same pattern as managed trades). Bridge is native tokens only and uses ChangeNow as provider. Amounts must be in raw token units (wei/lamports). See gdex-bridge skill for full details.

Copy trade write operations (create/delete) use chainId: 622112261 for sign-in, NOT chainId: 1. The chainId field in the ABI is uint256 (not string). The update endpoint uses 16 ABI fields (not 15): [traderWallet, copyTradeName, chainId(uint256), gasPrice, buyMode, copyBuyAmount, isBuyExistingToken, lossPercent, profitPercent, nonce, copySell, excludedDexNumbers, copyTradeId, isDelete, isChangeStatus, excludedProgramIds]. Both isDelete='1' and isChangeStatus='1' permanently delete the trade — there is no toggle. Boolean fields use '' (empty string) for false and '1' for true; string '0' is truthy and will trigger deletion.

Limit order endpoints are limit_buy / limit_sell / update_order — NOT orders/create / orders/cancel. Use limitBuy() for buy orders, limitSell() for sell orders (auto-classifies TP vs SL), and updateOrder({ isDelete: true }) to cancel. Listing uses GET /v1/orders with userId + encrypted data + chainId. All write endpoints use ABI-encoded + signed + AES-encrypted computedData (same managed-custody pattern). Minimum order is ~0.01 native token. See gdex-limit-orders skill for full details.

HL perp copy trading is completely separate from Solana copy trading. Uses chainId: 1 (EVM), ABI methods hl_create/hl_update (8 and 11 string fields), and goes through buildHlComputedData(). Both isDelete and isChangeStatus permanently DELETE the trade (same as Solana — there is no toggle). Both TP and SL are mandatory (> 0). Max 3 copy trades per user. Supports opposite-direction copying via oppositeCopy. Backend stores ABI byte-offsets for copyMode and oppositeCopy (e.g., copyMode=416), not the actual values. user_stats requires the managed wallet address, not the control wallet. See gdex-perp-copy-trading skill for full details.

Autonomous Agent Playbook

This section contains everything an autonomous AI agent needs to trade without human help.

Portfolio / Balances — Backend Param Mismatch (Live-Tested)

The high-level getPortfolio() and getBalances() methods send walletAddress + chain, but the backend expects userId + chainId + data (encrypted session key). Workaround — use the raw client directly:

import { buildGdexUserSessionData } from '@gdexsdk/gdex-skill';
const data = buildGdexUserSessionData(sessionKey, apiKey);

// Portfolio
const portfolio = await skill.client.get('/v1/portfolio', {
  params: { userId: controlAddress, chainId: 622112261, data }
});

// Balances
const balances = await skill.client.get('/v1/balances', {
  params: { userId: controlAddress, chainId: 622112261, data }
});

Trade History — Different Param Names (Live-Tested)

Backend expects user (not userId), and the managed Solana chainId for trade history is 900 (not 622112261):

const history = await skill.client.get('/v1/user_trade_history', {
  params: { user: controlAddress, chainId: 900, data, page: 1, limit: 20 }
});

OHLCV / TopTraders — Numeric chainId Required (Live-Tested)

Backend needs numeric chainId, not string chain. These work:

await skill.getOHLCV({ tokenAddress, chain: 622112261, resolution: '60', from, to });
await skill.getTopTraders({ chain: 622112261, period: '7d', limit: 5 });

Spot Trading (Managed Custody) — Raw Units Required (Live-Tested)

For managed-custody trades, amounts must be in raw units (lamports for Solana, wei for EVM), NOT float:

// ❌ WRONG: amount: '0.01'
// ✅ CORRECT: amount: '10000000' (0.01 SOL = 10000000 lamports)

Limit Orders — profitPercent/lossPercent MUST Be uint256 (Live-Tested)

The limit_buy and update_order ABI schemas use uint256 for profitPercent and lossPercent — NOT string. The backend decodes them as uint256 and validates 0-100 range. Using string type produces ABI byte-offsets (e.g. 192) that always fail. The SDK handles this correctly.

Endpoints That Don't Work (Live-Tested)

Error Recovery for Autonomous Agents

Live-Tested E2E Results (39/42 Pass)

Quick Start

import { GdexSkill, GDEX_API_KEY_PRIMARY } from '@gdexsdk/gdex-skill';

const skill = new GdexSkill();
skill.loginWithApiKey(GDEX_API_KEY_PRIMARY);

// No-auth endpoints work immediately
const trending = await skill.getTrendingTokens({ chain: 'solana', period: '24h', limit: 5 });

// Auth-required endpoints
const trade = await skill.buyToken({
  chain: 'solana',
  tokenAddress: 'EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v',
  amount: '0.1',
  slippage: 1,
});

Shared API Keys: 9b4e1c73-6a2f-4d88-b5c9-3e7a2f1d6c54 (primary), 2c8f0a91-5d34-4e7b-9a62-f1c3d8e4b705 (secondary)

Installation

# Install all skills
npx skills add GemachDAO/gdex-skill --all --agent '*' -g

# Install SDK
npm install @gdexsdk/gdex-skill

| userId | Control wallet address (from sign-in), NOT managed wallet | | Bridge receiver | 0x2Df1c51E09aECF9cacB7bc98cB1742757f163dF7 |

HL Signature Format

All HL write operations sign with the session private key (registered during sign-in):

message = "{action}-{userId.toLowerCase()}-{dataHex}" // e.g. "hl_deposit-0x53d0...-0000..."
digest  = keccak256(utf8Bytes(message))
output  = r(64hex) + s(64hex) + v(2hex)  // 130 chars, v=00/01, no 0x prefix

HL Error Codes