diff --git a/bin/chats/linkedin.go b/bin/chats/linkedin.go
new file mode 100644
index 0000000..4576ff4
--- /dev/null
+++ b/bin/chats/linkedin.go
@@ -0,0 +1,356 @@
+package main
+
+import (
+	"bufio"
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+type LinkedInMCPSource struct {
+	userDataDir string
+	limit       int
+}
+
+type lnInboxItem struct {
+	ThreadID         string `json:"thread_id"`
+	Participants     string `json:"participants"`
+	LastMessage      string `json:"last_message"`
+	LastMessageDate  string `json:"last_message_date"`
+	Unread           bool   `json:"unread"`
+}
+
+type lnInboxEnvelope struct {
+	Results    []lnInboxItem `json:"results"`
+	HasMore    bool          `json:"hasMore"`
+}
+
+type lnMessage struct {
+	From       string `json:"from"`
+	Date       string `json:"date"`
+	Text       string `json:"text"`
+}
+
+type lnConvEnvelope struct {
+	Results    []lnMessage `json:"results"`
+	HasMore    bool        `json:"hasMore"`
+	TotalCount int         `json:"total_count"`
+}
+
+func NewLinkedInMCPSource(userDataDir string) *LinkedInMCPSource {
+	return &LinkedInMCPSource{userDataDir: userDataDir}
+}
+
+func (s *LinkedInMCPSource) Name() string { return "linkedin" }
+
+func (s *LinkedInMCPSource) Sync(ctx context.Context, outDir string, limit int) error {
+	if limit > 0 {
+		s.limit = limit
+	}
+
+	client, err := newLinkedInMCP(ctx, s.userDataDir)
+	if err != nil {
+		return fmt.Errorf("linkedin mcp: %w", err)
+	}
+	defer client.Close()
+
+	inbox, err := client.GetInbox(ctx, 50)
+	if err != nil {
+		return fmt.Errorf("get_inbox: %w", err)
+	}
+	if len(inbox) == 0 {
+		fmt.Println("chats: no LinkedIn conversations found")
+		return nil
+	}
+
+	fmt.Printf("chats: found %d LinkedIn conversations\n", len(inbox))
+
+	for _, conv := range inbox {
+		convID := sanitizeDir(conv.ThreadID)
+		if convID == "" {
+			convID = fmt.Sprintf("conv_%d", time.Now().UnixNano())
+		}
+
+		parts := strings.SplitN(conv.Participants, ",", 2)
+		chatName := strings.TrimSpace(parts[0])
+		if chatName == "" {
+			chatName = convID
+		}
+
+		chatDir := filepath.Join(outDir, "linkedin", convID)
+		if err := os.MkdirAll(chatDir, 0755); err != nil {
+			fmt.Fprintf(os.Stderr, "chats: mkdir %s: %v\n", chatDir, err)
+			continue
+		}
+
+		msgLimit := 100
+		if s.limit > 0 {
+			msgLimit = s.limit
+		}
+
+		msgs, err := client.GetConversation(ctx, "", conv.ThreadID, msgLimit)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "chats: get_conversation %s: %v\n", convID, err)
+			continue
+		}
+
+		jsonlPath := filepath.Join(chatDir, "messages.jsonl")
+		f, err := os.Create(jsonlPath)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "chats: create %s: %v\n", jsonlPath, err)
+			continue
+		}
+
+		enc := json.NewEncoder(f)
+		written := 0
+		for i, m := range msgs {
+			text := m.Text
+			if text == "" {
+				continue
+			}
+
+			ts := m.Date
+			if t, err := time.Parse("2006-01-02T15:04:05Z07:00", m.Date); err == nil {
+				ts = t.UTC().Format(time.RFC3339)
+			} else if t, err := time.Parse(time.RFC3339, m.Date); err == nil {
+				ts = t.UTC().Format(time.RFC3339)
+			}
+
+			chatMsg := Message{
+				ID:        fmt.Sprintf("li_%s_%d", convID, i),
+				Timestamp: ts,
+				From:      m.From,
+				Text:      text,
+				Platform:  "linkedin",
+			}
+			if err := enc.Encode(chatMsg); err != nil {
+				fmt.Fprintf(os.Stderr, "chats: encode: %v\n", err)
+				continue
+			}
+			written++
+		}
+		f.Close()
+
+		fmt.Printf("chats: synced %s (%s) — %d messages\n", chatName, convID, written)
+	}
+
+	return nil
+}
+
+type linkedInMCPClient struct {
+	cmd    *exec.Cmd
+	stdin  *bufio.Writer
+	stdout *bufio.Scanner
+	msgID  int
+}
+
+func newLinkedInMCP(ctx context.Context, userDataDir string) (*linkedInMCPClient, error) {
+	args := []string{
+		"mcp-server-linkedin@latest",
+		"--user-data-dir", userDataDir,
+		"--no-auto-import",
+		"--transport", "stdio",
+		"--login-timeout", "10",
+		"--browser-wait", "1",
+		"--browser-idle-timeout", "10",
+		"--log-level", "ERROR",
+	}
+
+	cmd := exec.CommandContext(ctx, "uvx", args...)
+	cmd.Env = os.Environ()
+
+	stdin, err := cmd.StdinPipe()
+	if err != nil {
+		return nil, fmt.Errorf("stdin pipe: %w", err)
+	}
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return nil, fmt.Errorf("stdout pipe: %w", err)
+	}
+	cmd.Stderr = os.Stderr
+
+	if err := cmd.Start(); err != nil {
+		return nil, fmt.Errorf("start: %w", err)
+	}
+
+	c := &linkedInMCPClient{
+		cmd:    cmd,
+		stdin:  bufio.NewWriter(stdin),
+		stdout: bufio.NewScanner(stdout),
+		msgID:  0,
+	}
+	c.stdout.Buffer(make([]byte, 1<<20), 1<<20)
+
+	if err := c.initialize(ctx); err != nil {
+		c.Close()
+		return nil, fmt.Errorf("init: %w", err)
+	}
+	return c, nil
+}
+
+func (c *linkedInMCPClient) nextID() int {
+	c.msgID++
+	return c.msgID
+}
+
+func (c *linkedInMCPClient) initialize(ctx context.Context) error {
+	params := map[string]interface{}{
+		"protocolVersion": "2024-11-05",
+		"capabilities":    map[string]interface{}{},
+		"clientInfo": map[string]string{
+			"name":    "chats-sync",
+			"version": "0.1.0",
+		},
+	}
+	_, err := c.send(ctx, "initialize", params)
+	return err
+}
+
+func (c *linkedInMCPClient) send(ctx context.Context, method string, params interface{}) (json.RawMessage, error) {
+	id := c.nextID()
+	req := map[string]interface{}{
+		"jsonrpc": "2.0",
+		"id":      id,
+		"method":  method,
+	}
+	if params != nil {
+		req["params"] = params
+	}
+	body, err := json.Marshal(req)
+	if err != nil {
+		return nil, fmt.Errorf("marshal: %w", err)
+	}
+
+	if _, err := c.stdin.Write(body); err != nil {
+		return nil, fmt.Errorf("write: %w", err)
+	}
+	if err := c.stdin.WriteByte('\n'); err != nil {
+		return nil, fmt.Errorf("newline: %w", err)
+	}
+	if err := c.stdin.Flush(); err != nil {
+		return nil, fmt.Errorf("flush: %w", err)
+	}
+
+	for c.stdout.Scan() {
+		line := c.stdout.Text()
+		if line == "" {
+			continue
+		}
+		var resp struct {
+			JSONRPC string          `json:"jsonrpc"`
+			ID      int             `json:"id"`
+			Result  json.RawMessage `json:"result,omitempty"`
+			Error   *struct {
+				Code    int    `json:"code"`
+				Message string `json:"message"`
+			} `json:"error,omitempty"`
+		}
+		if err := json.Unmarshal([]byte(line), &resp); err != nil {
+			return nil, fmt.Errorf("unmarshal: %w\nline: %s", err, line[:min(len(line), 500)])
+		}
+		if resp.Error != nil {
+			return nil, fmt.Errorf("rpc error %d: %s", resp.Error.Code, resp.Error.Message)
+		}
+		return resp.Result, nil
+	}
+	return nil, fmt.Errorf("no response: %w", c.stdout.Err())
+}
+
+func (c *linkedInMCPClient) GetInbox(ctx context.Context, limit int) ([]lnInboxItem, error) {
+	params := map[string]interface{}{
+		"limit": limit,
+	}
+	result, err := c.send(ctx, "tools/call", map[string]interface{}{
+		"name":      "get_inbox",
+		"arguments": params,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	var toolRes struct {
+		Content []struct {
+			Type string `json:"type"`
+			Text string `json:"text"`
+		} `json:"content"`
+		IsError bool `json:"isError"`
+	}
+	if err := json.Unmarshal(result, &toolRes); err != nil {
+		return nil, fmt.Errorf("unmarshal tool: %w", err)
+	}
+	if toolRes.IsError {
+		return nil, fmt.Errorf("get_inbox error")
+	}
+	if len(toolRes.Content) == 0 {
+		return nil, nil
+	}
+
+	text := toolRes.Content[0].Text
+	var env lnInboxEnvelope
+	if err := json.Unmarshal([]byte(text), &env); err != nil {
+		var arr []lnInboxItem
+		if err2 := json.Unmarshal([]byte(text), &arr); err2 == nil {
+			return arr, nil
+		}
+		return nil, fmt.Errorf("parse inbox: %w", err)
+	}
+	return env.Results, nil
+}
+
+func (c *linkedInMCPClient) GetConversation(ctx context.Context, username, threadID string, limit int) ([]lnMessage, error) {
+	params := map[string]interface{}{
+		"linkedin_username": username,
+		"thread_id":         threadID,
+		"index":             limit,
+	}
+	result, err := c.send(ctx, "tools/call", map[string]interface{}{
+		"name":      "get_conversation",
+		"arguments": params,
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	var toolRes struct {
+		Content []struct {
+			Type string `json:"type"`
+			Text string `json:"text"`
+		} `json:"content"`
+		IsError bool `json:"isError"`
+	}
+	if err := json.Unmarshal(result, &toolRes); err != nil {
+		return nil, fmt.Errorf("unmarshal tool: %w", err)
+	}
+	if toolRes.IsError {
+		return nil, nil
+	}
+	if len(toolRes.Content) == 0 {
+		return nil, nil
+	}
+
+	text := toolRes.Content[0].Text
+	var env lnConvEnvelope
+	if err := json.Unmarshal([]byte(text), &env); err != nil {
+		var arr []lnMessage
+		if err2 := json.Unmarshal([]byte(text), &arr); err2 == nil {
+			return arr, nil
+		}
+		return nil, fmt.Errorf("parse conv: %w", err)
+	}
+	return env.Results, nil
+}
+
+func (c *linkedInMCPClient) Close() error {
+	if c.stdin != nil {
+		c.stdin.Flush()
+	}
+	if c.cmd != nil && c.cmd.Process != nil {
+		c.cmd.Process.Kill()
+	}
+	return nil
+}
diff --git a/bin/chats/main.go b/bin/chats/main.go
index 99a0052..0545209 100644
--- a/bin/chats/main.go
+++ b/bin/chats/main.go
@@ -40,8 +40,7 @@ func main() {
 			fmt.Fprintf(os.Stderr, "chats: WhatsApp not implemented yet\n")
 			os.Exit(1)
 		case "linkedin":
-			fmt.Fprintf(os.Stderr, "chats: LinkedIn not implemented yet\n")
-			os.Exit(1)
+			os.Exit(runSyncLinkedIn(platformArgs))
 		default:
 			fmt.Fprintf(os.Stderr, "chats: unknown platform %q\n", platform)
 			os.Exit(2)
diff --git a/bin/chats/sync_linkedin_cmd.go b/bin/chats/sync_linkedin_cmd.go
new file mode 100644
index 0000000..e2be490
--- /dev/null
+++ b/bin/chats/sync_linkedin_cmd.go
@@ -0,0 +1,69 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+	"time"
+)
+
+func checkLinkedInSession(userDataDir string) (bool, error) {
+	cmd := exec.Command("uvx", "mcp-server-linkedin@latest",
+		"--user-data-dir", userDataDir,
+		"--no-auto-import",
+		"--status",
+	)
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return true, fmt.Errorf("status check: %w\n%s", err, string(out))
+	}
+	return !strings.Contains(string(out), "✅"), nil
+}
+
+func runSyncLinkedIn(args []string) int {
+	fs := flag.NewFlagSet("chats sync linkedin", flag.ContinueOnError)
+	limit := fs.Int("limit", 0, "max messages per conversation (0 = all)")
+	help := fs.Bool("help", false, "")
+	fs.SetOutput(os.Stderr)
+	if err := fs.Parse(args); err != nil {
+		return 2
+	}
+	if *help {
+		fmt.Fprintln(os.Stderr, "usage: chats sync linkedin [--limit N]")
+		return 0
+	}
+
+	userDataDir := envVar("LINKEDIN_USER_DATA_DIR", "")
+	if userDataDir == "" {
+		home, _ := os.UserHomeDir()
+		userDataDir = home + "/.linkedin-mcp/profile"
+	}
+
+	// Check session first
+	loginNeeded, err := checkLinkedInSession(userDataDir)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "chats: linkedin status check: %v\n", err)
+	}
+	if loginNeeded {
+		fmt.Fprintf(os.Stderr, "chats: LinkedIn session expired. Run:\n")
+		fmt.Fprintf(os.Stderr, "  uvx mcp-server-linkedin@latest --user-data-dir %s --login\n", userDataDir)
+		fmt.Fprintf(os.Stderr, "Then retry 'chats sync linkedin'\n")
+		return 1
+	}
+
+	src := NewLinkedInMCPSource(userDataDir)
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Minute)
+	defer cancel()
+
+	start := time.Now()
+	if err := src.Sync(ctx, chatsDir(), *limit); err != nil {
+		fmt.Fprintf(os.Stderr, "chats sync linkedin: %v\n", err)
+		return 1
+	}
+	fmt.Printf("chats sync linkedin: completed in %s\n", time.Since(start).Round(time.Millisecond))
+	return 0
+}