Guest landing page, pricing page, and free AI trial

agent/agent.go

@@ -407,7 +407,11 @@ form.addEventListener('submit',function(e){
   .then(function(resp){
     if(!resp.ok&&resp.status===401){
       prog.style.display='none';
-      result.innerHTML='<div class="card"><p>Please <a href="/login?redirect=/agent">login</a> to use the agent.</p></div>';
+      resp.json().then(function(j){
+        result.innerHTML='<div class="card"><p>'+(j.error||'Authentication required')+'</p><p style="margin-top:8px"><a href="/signup" class="btn">Sign up</a> <a href="/login?redirect=/agent" style="margin-left:8px">or log in</a></p></div>';
+      }).catch(function(){
+        result.innerHTML='<div class="card"><p>Please <a href="/login?redirect=/agent">login</a> to use the agent.</p></div>';
+      });
       btn.disabled=false;btn.textContent='Do';
       return;
     }
@@ -751,11 +755,18 @@ func handleQuery(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	// Require authentication
-	_, acc, err := auth.RequireSession(r)
-	if err != nil {
-		http.Error(w, `{"error":"authentication required"}`, http.StatusUnauthorized)
-		return
+	_, acc := auth.TrySession(r)
+	isGuest := acc == nil
+
+	if isGuest {
+		ip := app.ClientIP(r)
+		if !guestQueryAllowed(ip) {
+			w.Header().Set("Content-Type", "application/json")
+			w.WriteHeader(http.StatusUnauthorized)
+			w.Write([]byte(`{"error":"Sign up to keep using the AI agent. 3 free queries per day."}`))
+			return
+		}
+		guestQueryRecord(ip)
 	}
 
 	// Resolve model
@@ -767,8 +778,8 @@ func handleQuery(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	// Check wallet quota before starting
-	if QuotaCheck != nil {
+	// Check wallet quota (authenticated users only)
+	if !isGuest && QuotaCheck != nil {
 		canProceed, _, err := QuotaCheck(r, model.WalletOp)
 		if !canProceed {
 			msg := "Insufficient credits for agent query. Top up at /wallet."
@@ -788,16 +799,22 @@ func handleQuery(w http.ResponseWriter, r *http.Request) {
 
 	// Create flow early so progress is saved server-side even if the
 	// SSE connection drops (e.g. mobile browser suspends the tab).
+	accountID := ""
+	if acc != nil {
+		accountID = acc.ID
+	}
 	flow := &Flow{
 		ID:        newFlowID(),
-		AccountID: acc.ID,
+		AccountID: accountID,
 		Prompt:    req.Prompt,
 		Status:    "running",
 		ParentID:  req.ContextID,
 		CreatedAt: time.Now().UTC(),
 	}
-	if err := saveFlow(flow); err != nil {
-		app.Log("agent", "Failed to create flow: %v", err)
+	if !isGuest {
+		if err := saveFlow(flow); err != nil {
+			app.Log("agent", "Failed to create flow: %v", err)
+		}
 	}
 
 	// Start SSE stream

agent/guest.go

@@ -0,0 +1,44 @@
+package agent
+
+import (
+	"sync"
+	"time"
+)
+
+const guestDailyLimit = 3
+
+var (
+	guestMu     sync.Mutex
+	guestCounts = map[string]*guestBucket{}
+)
+
+type guestBucket struct {
+	count   int
+	resetAt time.Time
+}
+
+func guestQueryAllowed(ip string) bool {
+	guestMu.Lock()
+	defer guestMu.Unlock()
+
+	b, ok := guestCounts[ip]
+	if !ok || time.Now().After(b.resetAt) {
+		return true
+	}
+	return b.count < guestDailyLimit
+}
+
+func guestQueryRecord(ip string) {
+	guestMu.Lock()
+	defer guestMu.Unlock()
+
+	b, ok := guestCounts[ip]
+	if !ok || time.Now().After(b.resetAt) {
+		guestCounts[ip] = &guestBucket{
+			count:   1,
+			resetAt: time.Now().Add(24 * time.Hour),
+		}
+		return
+	}
+	b.count++
+}

agent/run.go

@@ -102,22 +102,28 @@ func RunHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	_, acc, err := auth.RequireSession(r)
-	if err != nil {
-		w.WriteHeader(401)
-		app.RespondJSON(w, RunResponse{Error: "authentication required"})
-		return
+	_, acc := auth.TrySession(r)
+	isGuest := acc == nil
+
+	if isGuest {
+		ip := app.ClientIP(r)
+		if !guestQueryAllowed(ip) {
+			w.WriteHeader(401)
+			app.RespondJSON(w, RunResponse{Error: "Sign up to keep using the AI agent. 3 free queries per day."})
+			return
+		}
+		guestQueryRecord(ip)
 	}
 
-	// Check quota
+	// Check quota (authenticated users only)
 	model := Models[0]
 	for _, m := range Models {
 		if m.ID == req.Model {
 			model = m
 			break
 		}
 	}
-	if QuotaCheck != nil {
+	if !isGuest && QuotaCheck != nil {
 		canProceed, _, err := QuotaCheck(r, model.WalletOp)
 		if !canProceed {
 			w.WriteHeader(402)
@@ -130,11 +136,9 @@ func RunHandler(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	_ = acc // authenticated
-
 	// Step 1: Plan
 	userCtx := ""
-	if UserContextFunc != nil {
+	if !isGuest && UserContextFunc != nil {
 		userCtx = UserContextFunc(acc.ID)
 	}
 	planSystem := "You are an AI agent. Given a user question, output ONLY a JSON array of tool calls.\n\n" +
@@ -217,10 +221,13 @@ func RunHandler(w http.ResponseWriter, r *http.Request) {
 
 	answer = app.StripLatexDollars(answer)
 
-	// Check if the user asked to remember something.
+	if isGuest {
+		app.RespondJSON(w, RunResponse{Answer: answer, Tools: toolsUsed})
+		return
+	}
+
 	go extractMemory(acc.ID, req.Prompt)
 
-	// Save as a flow so it appears in the agent history at /agent.
 	var steps []FlowStep
 	for _, tu := range toolsUsed {
 		steps = append(steps, FlowStep{Tool: tu.Name})

home/guest.go

@@ -0,0 +1,68 @@
+package home
+
+import (
+	"fmt"
+	"net/http"
+	"net/url"
+	"strings"
+
+	"mu/internal/app"
+)
+
+func serveGuestHome(w http.ResponseWriter, r *http.Request) {
+	RefreshCards()
+
+	var b strings.Builder
+
+	// AI prompt — guest trial (3 free queries tracked by IP)
+	b.WriteString(`<div style="text-align:center;padding:32px 0 0">`)
+	b.WriteString(`<h2 style="font-size:1.5rem;margin:0 0 6px">Your personal AI</h2>`)
+	b.WriteString(`<p style="color:#666;font-size:14px;margin:0 0 20px">Ask anything. Try it free.</p>`)
+	b.WriteString(`</div>`)
+
+	b.WriteString(`<div style="max-width:560px;margin:0 auto 24px">`)
+	b.WriteString(`<form action="/agent" method="GET" style="position:relative">`)
+	b.WriteString(`<textarea name="prompt" placeholder="What do you need?" maxlength="512" rows="1" style="width:100%;padding:14px 44px 14px 16px;border:1px solid #ddd;border-radius:14px;font-size:16px;font-family:inherit;resize:none;box-sizing:border-box;line-height:1.4;overflow:hidden;background:#fff" onkeydown="if(event.key==='Enter'&&!event.shiftKey){event.preventDefault();this.form.submit()}" oninput="this.style.height='auto';this.style.height=Math.min(this.scrollHeight,120)+'px'"></textarea>`)
+	b.WriteString(`<button type="submit" style="position:absolute;right:8px;top:50%;transform:translateY(-50%);width:32px;height:32px;background:#000;color:#fff;border:none;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;padding:0">&#x2192;</button>`)
+	b.WriteString(`</form>`)
+
+	// Suggestion pills
+	suggestions := []string{"Today's news", "Bitcoin price", "What is Mu?"}
+	b.WriteString(`<div style="display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-top:10px">`)
+	for _, s := range suggestions {
+		b.WriteString(fmt.Sprintf(`<a href="/agent?prompt=%s" style="padding:6px 12px;border:1px solid #e0e0e0;border-radius:20px;background:#fff;font-size:13px;color:#555;text-decoration:none;white-space:nowrap">%s</a>`, htmlEsc(url.QueryEscape(s)), htmlEsc(s)))
+	}
+	b.WriteString(`</div>`)
+	b.WriteString(`</div>`)
+
+	// Public content cards — show a taste of what's available
+	b.WriteString(`<div id="home-cards">`)
+
+	// News preview
+	cacheMutex.RLock()
+	for _, card := range Cards {
+		if card.ID == "news" || card.ID == "markets" || card.ID == "blog" || card.ID == "reminder" {
+			content := card.CachedHTML
+			if strings.TrimSpace(content) == "" {
+				continue
+			}
+			if card.Link != "" {
+				content += app.Link("More", card.Link)
+			}
+			b.WriteString(fmt.Sprintf(app.CardTemplate, card.ID, card.ID, card.Title, content))
+		}
+	}
+	cacheMutex.RUnlock()
+
+	b.WriteString(`</div>`)
+
+	// CTA
+	b.WriteString(`<div style="text-align:center;padding:24px 0;border-top:1px solid #eee;margin-top:16px">`)
+	b.WriteString(`<p style="font-size:15px;color:#555;margin:0 0 12px">Get the full experience — AI agent with memory, mail, web search, and more.</p>`)
+	b.WriteString(`<a href="/pricing" style="display:inline-block;padding:10px 24px;background:#000;color:#fff;text-decoration:none;border-radius:8px;font-size:15px;margin-right:8px">View pricing</a>`)
+	b.WriteString(`<a href="/signup" style="display:inline-block;padding:10px 24px;border:1px solid #000;color:#000;text-decoration:none;border-radius:8px;font-size:15px">Sign up</a>`)
+	b.WriteString(`</div>`)
+
+	html := app.RenderHTMLWithLangAndBody("Mu — Your Personal AI", "News, mail, markets, search and more through one AI", b.String(), "en", ` class="page-home"`)
+	w.Write([]byte(html))
+}

home/home.go

@@ -370,6 +370,13 @@ func Handler(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	// Guest landing page for unauthenticated visitors.
+	_, viewerAcc := auth.TrySession(r)
+	if viewerAcc == nil {
+		serveGuestHome(w, r)
+		return
+	}
+
 	// Refresh cards if cache expired (2 minute TTL)
 	RefreshCards()
 
@@ -378,7 +385,6 @@ func Handler(w http.ResponseWriter, r *http.Request) {
 	// Date header + weather + invite — Overview only, built here
 	// and injected into the cards div below.
 	now := time.Now()
-	_, viewerAcc := auth.TrySession(r)
 	var dateLine strings.Builder
 	inviteHTML := ""
 	if viewerAcc != nil {

home/pricing.go

@@ -0,0 +1,93 @@
+package home
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	"mu/internal/app"
+	"mu/wallet"
+)
+
+func PricingHandler(w http.ResponseWriter, r *http.Request) {
+	var b strings.Builder
+
+	// Hero
+	b.WriteString(`<div style="max-width:560px;margin:0 auto;text-align:center;padding:24px 0 0">`)
+	b.WriteString(`<h2 style="font-size:1.6rem;margin:0 0 8px">Your personal AI</h2>`)
+	b.WriteString(`<p style="color:#666;font-size:15px;margin:0 0 24px">News, mail, markets, search, weather, and more — all through one AI that knows what you care about.</p>`)
+	b.WriteString(`</div>`)
+
+	// Plans
+	b.WriteString(`<div style="display:flex;gap:16px;flex-wrap:wrap;justify-content:center;margin:0 0 24px">`)
+
+	// Starter plan
+	b.WriteString(`<div class="card" style="flex:1;min-width:240px;max-width:300px;text-align:center">`)
+	b.WriteString(`<h3 style="margin:0 0 4px">Starter</h3>`)
+	b.WriteString(`<p style="font-size:2rem;font-weight:700;margin:8px 0">£5<span style="font-size:14px;font-weight:400;color:#888">/month</span></p>`)
+	b.WriteString(`<p style="color:#666;font-size:14px;margin:0 0 16px">500 credits</p>`)
+	b.WriteString(`<ul style="text-align:left;list-style:none;padding:0;margin:0 0 16px;font-size:14px;line-height:2">`)
+	b.WriteString(`<li>&#10003; AI agent with memory</li>`)
+	b.WriteString(`<li>&#10003; News, markets, weather</li>`)
+	b.WriteString(`<li>&#10003; Mail and messaging</li>`)
+	b.WriteString(`<li>&#10003; Web search</li>`)
+	b.WriteString(`<li>&#10003; Build apps with AI</li>`)
+	b.WriteString(`</ul>`)
+	b.WriteString(`<a href="/signup" class="btn" style="display:block">Get started</a>`)
+	b.WriteString(`</div>`)
+
+	// Pro plan
+	b.WriteString(`<div class="card" style="flex:1;min-width:240px;max-width:300px;text-align:center;border:2px solid #000">`)
+	b.WriteString(`<h3 style="margin:0 0 4px">Pro</h3>`)
+	b.WriteString(`<p style="font-size:2rem;font-weight:700;margin:8px 0">£10<span style="font-size:14px;font-weight:400;color:#888">/month</span></p>`)
+	b.WriteString(`<p style="color:#666;font-size:14px;margin:0 0 16px">1,200 credits</p>`)
+	b.WriteString(`<ul style="text-align:left;list-style:none;padding:0;margin:0 0 16px;font-size:14px;line-height:2">`)
+	b.WriteString(`<li>&#10003; Everything in Starter</li>`)
+	b.WriteString(`<li>&#10003; More credits per month</li>`)
+	b.WriteString(`<li>&#10003; Priority AI models</li>`)
+	b.WriteString(`</ul>`)
+	b.WriteString(`<a href="/signup" class="btn" style="display:block">Get started</a>`)
+	b.WriteString(`</div>`)
+
+	b.WriteString(`</div>`)
+
+	// What's included (free)
+	b.WriteString(`<div class="card" style="max-width:560px;margin:0 auto 16px">`)
+	b.WriteString(`<h3>Included for everyone</h3>`)
+	b.WriteString(`<p style="font-size:14px;color:#666">Browse without an account. No ads, no tracking.</p>`)
+	b.WriteString(`<ul style="list-style:none;padding:0;font-size:14px;line-height:2;margin:8px 0 0">`)
+	b.WriteString(`<li>&#10003; News headlines and feeds</li>`)
+	b.WriteString(`<li>&#10003; Market prices</li>`)
+	b.WriteString(`<li>&#10003; Blog posts and social</li>`)
+	b.WriteString(`<li>&#10003; Video</li>`)
+	b.WriteString(`<li>&#10003; 3 free AI questions as a guest</li>`)
+	b.WriteString(`</ul>`)
+	b.WriteString(`</div>`)
+
+	// Credit costs
+	b.WriteString(`<div class="card" style="max-width:560px;margin:0 auto 16px">`)
+	b.WriteString(`<h3>Credit costs</h3>`)
+	b.WriteString(`<p style="font-size:14px;color:#666;margin:0 0 8px">1 credit = 1p. Pay for what you use.</p>`)
+	b.WriteString(`<table class="stats-table" style="font-size:14px">`)
+	b.WriteString(`<tr><td>AI agent</td><td>` + fmt.Sprintf("%d", wallet.CostAgentQuery) + `</td></tr>`)
+	b.WriteString(`<tr><td>Chat</td><td>` + fmt.Sprintf("%d", wallet.CostChatQuery) + `</td></tr>`)
+	b.WriteString(`<tr><td>Web search</td><td>` + fmt.Sprintf("%d", wallet.CostWebSearch) + `</td></tr>`)
+	b.WriteString(`<tr><td>Weather</td><td>` + fmt.Sprintf("%d", wallet.CostWeatherForecast) + `</td></tr>`)
+	b.WriteString(`<tr><td>Mail</td><td>` + fmt.Sprintf("%d", wallet.CostMailSend) + `</td></tr>`)
+	b.WriteString(`<tr><td>News search</td><td>` + fmt.Sprintf("%d", wallet.CostNewsSearch) + `</td></tr>`)
+	b.WriteString(`</table>`)
+	b.WriteString(`</div>`)
+
+	// Self-host
+	b.WriteString(`<div class="card" style="max-width:560px;margin:0 auto 16px">`)
+	b.WriteString(`<h3>Self-host</h3>`)
+	b.WriteString(`<p style="font-size:14px;color:#666">Run your own instance with no limits. Single Go binary, bring your own AI provider.</p>`)
+	b.WriteString(`<p style="font-size:14px"><a href="https://github.com/micro/mu">github.com/micro/mu</a></p>`)
+	b.WriteString(`</div>`)
+
+	// Login link
+	b.WriteString(`<p style="text-align:center;font-size:14px;color:#888;margin:16px 0">Already have an account? <a href="/login">Log in</a></p>`)
+
+	html := app.RenderHTML("Pricing", "Personal AI — plans and pricing", b.String())
+	w.Write([]byte(html))
+}

main.go

@@ -715,6 +715,7 @@ func main() {
 		"/web/read":  false, // Public page, auth checked in handler (proxied reader)
 
 		"/status":     false, // Public - server health status
+		"/pricing":    false, // Public - pricing page
 		"/docs":       false, // Public - documentation
 		"/whitepaper": false, // Public - whitepaper
 		"/mcp":        false, // Public - MCP tools page
@@ -829,6 +830,7 @@ func main() {
 
 	// serve the home screen
 	http.HandleFunc("/home", home.Handler)
+	http.HandleFunc("/pricing", home.PricingHandler)
 
 	// serve the agent
 	http.HandleFunc("/agent", agent.Handler)