Gate DEX Wallet

Gate DEX wallet account management. Handles authentication (Google OAuth and Gate OAuth), token balance queries, wallet address retrieval, transaction and swap history, token transfers, on-chain withdraw to Gate Exchange (deposit address, UID binding, min-deposit), x402 payment (HTTP 402 Payment Required with EVM exact/upto and Solana exact/upto schemes; terminal tx-checkin before dex_tx_x402_fetch per references/x402.md), DApp wallet-connect and contract interactions, and CLI tooling. Signing MCP calls require mandatory terminal tx-checkin (prebuilt **tools/tx-checkin/bin/** — users do not compile) per references/tx-checkin.md. Use when the user wants to manage their on-chain wallet identity or assets — not for market data lookups or token swap execution.

Pure Routing Layer — This SKILL.md is a lightweight router. All sub-module details live in references/.

General Rules

⚠️ STOP — You MUST read and strictly follow the shared runtime rules before proceeding. Do NOT select or call any tool until all rules are read. These rules have the highest priority. → Read gate-runtime-rules.md

Signing gate — terminal tx-checkin (mandatory)

Before any MCP call to dex_wallet_sign_transaction, dex_wallet_sign_message, or dex_tx_x402_fetch:

1. User must pass the existing confirmation gates (preview / message text / payment intent) for that operation.
2. Agent MUST run the terminal tx-checkin flow in references/tx-checkin.md and treat success as a hard prerequisite. Do not skip because a prior operation did not require it or no error was returned. Use the prebuilt check-in binaries under tools/tx-checkin/bin/ — end users do not compile (go build / go run not required). Resolve the CLI from this skill’s skill_root: Linux → tx-checkin-linux-amd64, macOS → tx-checkin-darwin-universal, Windows → tx-checkin-windows-amd64.exe — users need not set TX_CHECKIN (optional override only); see references/tx-checkin.md.
3. After dex_tx_transfer_preview, check-in must use the preview field txBundle only: write that string to a file and run tx-checkin -tx-bundle-file — do not assemble txbundle JSON from unsigned_tx_hex or other fields (see references/tx-checkin.md).
4. x402 (dex_tx_x402_fetch): Always complete terminal check-in before the first dex_tx_x402_fetch call in that payment flow. Do not call dex_tx_x402_fetch first to probe 402 or “see if GV needs check-in.” After successful check-in, pass checkin_token from stdout JSON into dex_tx_x402_fetch when the tool exposes that parameter; use -intent / -message (or documented body) for check-in per references/x402.md and references/tx-checkin.md.
5. Other single-step MCP tools that sign internally: same terminal check-in immediately before the tool when the gateway requires it; follow backend docs for checkin_token / intent payload.

Applicable Scenarios

Use this skill when the user wants to manage their on-chain wallet account, identity, or assets:

• Authenticate or manage sessions (login via Google or Gate OAuth, logout)
• Query token balances, total portfolio value, or wallet addresses
• View transaction history or past swap records
• Transfer or send tokens to an address (single or batch); mandatory terminal tx-checkin before any signing (references/tx-checkin.md)
• Withdraw or cash out on-chain to their Gate Exchange account (deposit address resolved for their UID; not CEX-internal balance moves from this skill)
• Pay for HTTP 402 resources via x402 protocol (EVM exact/upto, Solana exact/upto); terminal tx-checkin before dex_tx_x402_fetch (references/x402.md, references/tx-checkin.md)
• Interact with DApps (connect wallet, sign messages, approve tokens, call contracts)
• Use the gate-wallet CLI tool for any of the above
• Detect or configure MCP Server connectivity

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Capability Boundaries

Supported	Not Supported (route elsewhere)
Authentication & session management	Token price / K-line queries -> gate-dex-market
Balance & address queries	Token swap execution -> gate-dex-trade
Transaction & swap history	Token security audits -> gate-dex-market
Token transfers (EVM + Solana); on-chain withdraw to Gate Exchange (deposit address flow)
x402 payment (EVM exact/upto + Solana exact/upto)
DApp interactions & approvals
CLI dual-channel operations

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Module Routing

Route to the corresponding sub-module based on user intent:

User Intent	Target
Login, logout, sign in, sign out, token expired, session expired, OAuth, Google login, Gate login, authenticate, re-login, switch account, "I can't access my wallet", "not logged in"	references/auth.md
Check balance, total assets, portfolio value, wallet address, my address, how much do I have, show my tokens, tx history, transaction history, swap history, past transactions, "what do I own", "how many ETH", "list my coins", "show holdings"	references/asset-query.md
Withdraw to Gate Exchange, cash out to my Gate account, send funds to the exchange deposit address, move coins from wallet to Gate (on-chain deposit), bind or rebind Gate UID for withdraw	references/withdraw.md
Transfer, send tokens, send to address, batch transfer, "send 1 ETH to 0x...", "transfer USDT", "move tokens", "pay someone", "send crypto to a friend" (arbitrary or known on-chain address — not exchange deposit resolution)	references/transfer.md + references/tx-checkin.md before sign
Any signing: before dex_wallet_sign_transaction / dex_wallet_sign_message; checkin_token; "run check-in"; terminal tx-checkin	references/tx-checkin.md (read before signing)
402 payment, x402 pay, payment required, pay for API, pay for URL, "fetch and pay", "call this URL and pay", "paid endpoint", "pay for access", "HTTP 402", Permit2 payment, upto payment	references/tx-checkin.md then references/x402.md (check-in before dex_tx_x402_fetch)
DApp connect, connect wallet, sign message, approve, revoke approval, contract call, EIP-712, Permit, personal_sign, "interact with Uniswap", "add liquidity", "stake on Lido", "mint NFT", "sign for DApp login", authorize contract	references/dapp.md + references/tx-checkin.md before every sign
gate-wallet CLI, command line, terminal, openapi-swap, hybrid swap, "use CLI", "run command", "gate-wallet balance", script automation, npm gate-wallet	references/cli.md

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MCP Server Connection Detection

Before the first MCP tool call in a session, perform one connection probe:

1. Discover: Scan configured MCP servers for tools dex_wallet_get_token_list, dex_tx_quote, and dex_tx_swap.
2. Identify: Accept flexible server names (gate-wallet, gate-dex, dex, wallet, user-gate-wallet, or any custom name).
3. Verify: CallMcpTool(server="<id>", toolName="dex_chain_config", arguments={chain: "eth"}).

Result	Action
Success	Record server identifier; use for all subsequent calls this session
Failure	Display setup guide below (at most once per session); re-detect next session

OpenClaw Platform Detection

When the OpenClaw/mcporter platform is detected, route MCP calls through mcporter:

text

CallMcpTool(server="mcporter", toolName="call_tool", arguments={
  server: "<gate-dex-server>",
  tool: "<tool_name>",
  arguments: { ...params }
})

Setup Guide (shown once on detection failure)

text

Gate DEX MCP Server:
  URL:  https://api.gatemcp.ai/mcp/dex
  Type: HTTP

  Cursor:      Settings -> MCP -> Add server, or edit ~/.cursor/mcp.json
  Claude Code:  claude mcp add --transport http gate-dex --scope project https://api.gatemcp.ai/mcp/dex
  Codex CLI:    codex mcp add gate-dex --transport http --url https://api.gatemcp.ai/mcp/dex

Runtime Error Handling

Error Type	Keywords	Action
MCP Server not configured	server not found, unknown server	Show setup guide
Remote service unreachable	connection refused, timeout, DNS error	Prompt to check server status and network
Authentication failure	400, 401, unauthorized	Follow §3 of gate-runtime-rules.md

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Follow-up Routing

After completing an operation, proactively suggest 2-4 relevant next actions to the user (see each module's "Post-XXX Suggestions" section for templates). Then route based on the user's response:

User Intent After Operation	Target
View token prices, K-line charts, market cap, trading volume	gate-dex-market
Run a token security audit, check if token is safe	gate-dex-market
Transfer or send tokens to an arbitrary on-chain address	references/transfer.md
Withdraw or cash out on-chain to Gate Exchange	references/withdraw.md
Swap, exchange, buy, sell, convert tokens on DEX	gate-dex-trade
Pay for a 402 resource, x402 payment	references/tx-checkin.md then references/x402.md
Interact with a DApp, connect wallet, sign, approve	references/dapp.md
Mandatory tx-checkin in terminal before any signing, checkin_token	references/tx-checkin.md
Login, re-login, fix expired auth, switch account	references/auth.md
Use CLI commands, gate-wallet terminal operations	references/cli.md
Check balance, view assets, transaction history	references/asset-query.md

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NOT This Skill (Common Misroutes)

These intents should NOT trigger this skill:

User Intent	Correct Skill
"What is the price of ETH?" / "Show BTC chart" / "Token rankings"	gate-dex-market
"Swap ETH for USDT" / "Buy SOL" / "Exchange tokens" / "DEX trade"	gate-dex-trade
"Is this token safe?" / "Audit contract 0x..." / "Honeypot check"	gate-dex-market
"Show top gainers" / "New token listings" / "Market overview"	gate-dex-market

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Supported Chains

EVM: eth, bsc, polygon, arbitrum, optimism, avax, base | Non-EVM: sol

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Security Rules

1. Authentication first: Verify mcp_token validity before all operations; on failure follow §3 of gate-runtime-rules.md.
2. Token confidentiality: Never display mcp_token in plaintext; use placeholders like <mcp_token>.
3. MCP Server errors: Display all MCP Server error messages to users transparently — never hide or modify them.