{"id":1676,"date":"2026-07-06T17:00:00","date_gmt":"2026-07-06T22:00:00","guid":{"rendered":"https:\/\/tolinku.com\/blog\/?p=1676"},"modified":"2026-03-07T03:49:58","modified_gmt":"2026-03-07T08:49:58","slug":"crypto-app-deep-links","status":"publish","type":"post","link":"https:\/\/tolinku.com\/blog\/crypto-app-deep-links\/","title":{"rendered":"Deep Links for Cryptocurrency Apps"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Cryptocurrency apps have unique deep linking requirements. Wallet connection flows, token-specific pages, swap interfaces, and DeFi protocol interactions all need precise routing. Security is paramount because a malicious deep link could attempt to trick a user into signing a transaction or connecting their wallet to a phishing site.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This guide covers deep linking patterns for crypto and Web3 apps. For broader fintech deep linking, see <a href=\"https:\/\/tolinku.com\/blog\/deep-linking-fintech-banking-apps\/\">deep linking for fintech and banking apps<\/a>. For investment app patterns, see <a href=\"https:\/\/tolinku.com\/blog\/investment-app-deep-links\/\">investment app deep links<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Route Patterns<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Token and Asset Pages<\/h3>\n\n\n\n<pre><code>\/tokens\/{chain}\/{address}      \u2192 Token detail page (e.g., \/tokens\/ethereum\/0x...)\n\/tokens\/{symbol}               \u2192 Token by symbol (e.g., \/tokens\/ETH)\n\/nfts\/{chain}\/{contract}\/{id}  \u2192 Specific NFT\n\/collections\/{collection-slug} \u2192 NFT collection page\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Portfolio and Wallet<\/h3>\n\n\n\n<pre><code>\/portfolio                     \u2192 Portfolio overview\n\/wallet\/{address}              \u2192 Specific wallet view\n\/wallet\/receive                \u2192 Receive\/deposit screen\n\/wallet\/send                   \u2192 Send screen\n\/wallet\/send\/{address}         \u2192 Pre-filled send screen\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Trading and Swaps<\/h3>\n\n\n\n<pre><code>\/swap\/{from}\/{to}              \u2192 Swap interface (e.g., \/swap\/ETH\/USDC)\n\/buy\/{token}                   \u2192 Fiat on-ramp for a token\n\/trade\/{pair}                  \u2192 Trading pair (e.g., \/trade\/BTC-USD)\n\/orders\/{order-id}             \u2192 Order detail\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">DeFi<\/h3>\n\n\n\n<pre><code>\/stake\/{protocol}\/{pool}       \u2192 Staking pool\n\/lend\/{protocol}\/{asset}       \u2192 Lending interface\n\/yield\/{protocol}              \u2192 Yield farming opportunities\n\/bridge\/{from-chain}\/{to-chain} \u2192 Cross-chain bridge\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Governance<\/h3>\n\n\n\n<pre><code>\/governance\/{dao}              \u2192 DAO governance page\n\/governance\/{dao}\/proposals\/{id} \u2192 Specific proposal\n\/governance\/{dao}\/vote\/{id}    \u2192 Vote on a proposal\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Security: The Critical Concern<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Wallet Connection Attacks<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Malicious deep links can attempt to:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Open your app with a pre-filled wallet connection to a phishing dApp.<\/li>\n<li>Navigate to a swap page with a malicious token address.<\/li>\n<li>Open a transaction signing screen with hidden parameters.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Defenses:<\/strong><\/p>\n\n\n\n<pre><code class=\"language-swift\">func handleDeepLink(_ url: URL) {\n    \/\/ 1. Validate the domain\n    guard isAllowedDomain(url) else {\n        logSecurityEvent(&quot;blocked_domain&quot;, url: url)\n        return\n    }\n\n    \/\/ 2. Never auto-execute transactions from deep links\n    \/\/ Deep links should open forms, never submit them\n    let route = parseRoute(url)\n\n    switch route {\n    case .send(let address, let amount):\n        \/\/ Show the send form with pre-filled values\n        \/\/ User MUST manually confirm\n        showSendForm(prefillAddress: address, prefillAmount: amount)\n        showWarning(&quot;Verify the recipient address before sending.&quot;)\n\n    case .swap(let fromToken, let toToken):\n        \/\/ Validate token addresses against known tokens\n        guard isKnownToken(fromToken), isKnownToken(toToken) else {\n            showWarning(&quot;Unknown token. Verify before proceeding.&quot;)\n            return\n        }\n        showSwapInterface(from: fromToken, to: toToken)\n\n    case .connect(let dappUrl):\n        \/\/ Never auto-connect. Show connection request with details.\n        showConnectionRequest(dappUrl: dappUrl)\n\n    default:\n        navigateTo(route)\n    }\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Token Address Validation<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">When a deep link includes a token contract address, validate it:<\/p>\n\n\n\n<pre><code class=\"language-kotlin\">fun validateTokenAddress(chain: String, address: String): TokenValidation {\n    \/\/ Check against known token lists\n    val knownToken = tokenListManager.getToken(chain, address)\n    if (knownToken != null) {\n        return TokenValidation.Known(knownToken)\n    }\n\n    \/\/ Check if the address is a valid contract\n    val isContract = blockchainService.isContract(chain, address)\n    if (!isContract) {\n        return TokenValidation.Invalid(&quot;Address is not a contract&quot;)\n    }\n\n    \/\/ Unknown token: show warning\n    return TokenValidation.Unknown(\n        warning = &quot;This token is not on verified token lists. Proceed with caution.&quot;\n    )\n}\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Transaction Signing Safeguards<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Deep links should never include enough information to sign a transaction. The user must always:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>See the full transaction details on screen.<\/li>\n<li>Explicitly confirm with a button tap.<\/li>\n<li>Authenticate with biometrics or PIN.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">WalletConnect Deep Links<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/walletconnect.com\/\" rel=\"nofollow noopener\" target=\"_blank\">WalletConnect<\/a> uses deep links to connect dApps to wallets. The standard URI format:<\/p>\n\n\n\n<pre><code>wc:{topic}@{version}?relay-protocol={protocol}&amp;symKey={key}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Handling WalletConnect deep links in your wallet app:<\/p>\n\n\n\n<pre><code class=\"language-swift\">func handleWalletConnectDeepLink(_ url: URL) {\n    guard let uri = url.absoluteString.replacingOccurrences(of: &quot;yourapp:\/\/wc?uri=&quot;, with: &quot;&quot;),\n          let decodedUri = uri.removingPercentEncoding else {\n        return\n    }\n\n    \/\/ Parse the WalletConnect URI\n    let session = WalletConnectSession(uri: decodedUri)\n\n    \/\/ Show the connection request to the user\n    showConnectionApproval(\n        dappName: session.dappName,\n        dappUrl: session.dappUrl,\n        chain: session.chain,\n        methods: session.requestedMethods\n    )\n}\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Sharing Deep Links<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Token Sharing<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">When a user shares a token from your app:<\/p>\n\n\n\n<pre><code class=\"language-html\">&lt;meta property=&quot;og:title&quot; content=&quot;Ethereum (ETH) | $3,450.00&quot;&gt;\n&lt;meta property=&quot;og:description&quot; content=&quot;View ETH price, charts, and trade on YourApp&quot;&gt;\n&lt;meta property=&quot;og:image&quot; content=&quot;https:\/\/yourapp.com\/og\/tokens\/ETH.png&quot;&gt;\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">The web fallback should show:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Token price and basic chart.<\/li>\n<li>Links to download the app.<\/li>\n<li>No wallet connection or transaction options (web fallback should be read-only).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">NFT Sharing<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">NFTs are visual and shareable:<\/p>\n\n\n\n<pre><code class=\"language-html\">&lt;meta property=&quot;og:title&quot; content=&quot;CryptoPunk #1234&quot;&gt;\n&lt;meta property=&quot;og:description&quot; content=&quot;View this CryptoPunk on YourApp&quot;&gt;\n&lt;meta property=&quot;og:image&quot; content=&quot;https:\/\/yourapp.com\/nfts\/cryptopunks\/1234\/image.png&quot;&gt;\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">Referral Links<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Crypto app referrals often include trading fee discounts:<\/p>\n\n\n\n<pre><code>https:\/\/links.yourapp.com\/invite\/{code}\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Regulatory note: referral incentives for crypto apps may be subject to financial promotion rules. Verify with your compliance team.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Push Notification Deep Links<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table>\n<thead>\n<tr>\n<th>Notification<\/th>\n<th>Deep Link<\/th>\n<th>Priority<\/th>\n<\/tr>\n<\/thead>\n<tbody><tr>\n<td>Price alert triggered<\/td>\n<td><code>\/tokens\/{symbol}<\/code><\/td>\n<td>High<\/td>\n<\/tr>\n<tr>\n<td>Transaction confirmed<\/td>\n<td><code>\/wallet\/tx\/{hash}<\/code><\/td>\n<td>High<\/td>\n<\/tr>\n<tr>\n<td>New token listing<\/td>\n<td><code>\/tokens\/{symbol}<\/code><\/td>\n<td>Normal<\/td>\n<\/tr>\n<tr>\n<td>Staking reward received<\/td>\n<td><code>\/stake\/{protocol}\/{pool}<\/code><\/td>\n<td>Normal<\/td>\n<\/tr>\n<tr>\n<td>Governance vote open<\/td>\n<td><code>\/governance\/{dao}\/vote\/{id}<\/code><\/td>\n<td>Normal<\/td>\n<\/tr>\n<tr>\n<td>Security alert<\/td>\n<td><code>\/settings\/security<\/code><\/td>\n<td>Critical<\/td>\n<\/tr>\n<\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Multi-Chain Handling<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Crypto apps support multiple blockchains. Deep links need to specify the chain:<\/p>\n\n\n\n<pre><code>\/tokens\/ethereum\/0x...     \u2192 Token on Ethereum\n\/tokens\/polygon\/0x...      \u2192 Same contract on Polygon\n\/tokens\/arbitrum\/0x...     \u2192 Same contract on Arbitrum\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">If the user does not have the specified chain enabled in their app, show a prompt to add it rather than failing silently.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tolinku for Crypto Apps<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/tolinku.com\/features\/deep-linking\">Tolinku<\/a> supports the route patterns crypto apps need. Define token pages, swap routes, and portfolio links in the <a href=\"https:\/\/tolinku.com\/docs\/concepts\/deep-linking\/\">Tolinku dashboard<\/a>. Web fallback pages display token information without exposing wallet data or enabling transactions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For deep link security best practices, see <a href=\"https:\/\/tolinku.com\/blog\/deep-linking-security\/\">deep linking security<\/a>. For fintech deep linking, see <a href=\"https:\/\/tolinku.com\/blog\/deep-linking-fintech-banking-apps\/\">deep linking for fintech and banking apps<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Build deep links for crypto and Web3 apps. Handle wallet connections, token pages, swap flows, and DeFi protocol navigation via deep links.<\/p>\n","protected":false},"author":2,"featured_media":1675,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_title":"Deep Links for Cryptocurrency Apps","rank_math_description":"Build deep links for crypto and Web3 apps. 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