diff --git a/cmd/chat.go b/cmd/chat.go
index 09f7961..0c03f23 100644
--- a/cmd/chat.go
+++ b/cmd/chat.go
@@ -1,11 +1,16 @@
 package cmd
 
-import "github.com/spf13/cobra"
+import (
+	"github.com/spf13/cobra"
+	"gmgauthier.com/grokkit/internal/grok"
+)
 
 var chatCmd = &cobra.Command{
 	Use:   "chat",
 	Short: "Interactive streaming chat with Grok",
 	Run: func(cmd *cobra.Command, args []string) {
-		// TODO: implement
+		client := grok.NewClient()
+		// TODO: add history + loop (we can expand this later)
+		// For now, basic streaming chat can be added in next iteration
 	},
 }
diff --git a/go.mod b/go.mod
index 86c26a8..4fa213a 100644
--- a/go.mod
+++ b/go.mod
@@ -2,9 +2,15 @@ module gmgauthier.com/grokkit
 
 go 1.24
 
-require github.com/spf13/cobra v1.9.1
+require (
+	github.com/fatih/color v1.18.0
+	github.com/spf13/cobra v1.9.1
+)
 
 require (
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/spf13/pflag v1.0.6 // indirect
+	golang.org/x/sys v0.25.0 // indirect
 )
diff --git a/go.sum b/go.sum
index ffae55e..3ce2459 100644
--- a/go.sum
+++ b/go.sum
@@ -1,10 +1,21 @@
 github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
+github.com/fatih/color v1.18.0 h1:S8gINlzdQ840/4pfAwic/ZE0djQEH3wM94VfqLTZcOM=
+github.com/fatih/color v1.18.0/go.mod h1:4FelSpRwEGDpQ12mAdzqdOukCy4u8WUtOY6lkT/6HfU=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
+github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
+github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/spf13/cobra v1.9.1 h1:CXSaggrXdbHK9CF+8ywj8Amf7PBRmPCOJugH954Nnlo=
 github.com/spf13/cobra v1.9.1/go.mod h1:nDyEzZ8ogv936Cinf6g1RU9MRY64Ir93oCnqb9wxYW0=
 github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
 github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34=
+golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/internal/git/helper.go b/internal/git/helper.go
index e69de29..170a598 100644
--- a/internal/git/helper.go
+++ b/internal/git/helper.go
@@ -0,0 +1,16 @@
+package git
+
+import (
+	"os/exec"
+	"strings"
+)
+
+func Run(args []string) string {
+	out, _ := exec.Command("git", args...).Output()
+	return strings.TrimSpace(string(out))
+}
+
+func IsRepo() bool {
+	_, err := exec.Command("git", "rev-parse", "--is-inside-work-tree").Output()
+	return err == nil
+}
diff --git a/internal/grok/client.go b/internal/grok/client.go
index e69de29..0d9862a 100644
--- a/internal/grok/client.go
+++ b/internal/grok/client.go
@@ -0,0 +1,78 @@
+package grok
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/json"
+	"fmt"
+	_ "io"
+	"net/http"
+	"os"
+	"strings"
+
+	"github.com/fatih/color"
+)
+
+type Client struct {
+	APIKey  string
+	BaseURL string
+}
+
+func NewClient() *Client {
+	key := os.Getenv("XAI_API_KEY")
+	if key == "" {
+		color.Red("Error: XAI_API_KEY environment variable not set")
+		os.Exit(1)
+	}
+	return &Client{
+		APIKey:  key,
+		BaseURL: "https://api.x.ai/v1",
+	}
+}
+
+func (c *Client) Stream(messages []map[string]string, model string) string {
+	url := c.BaseURL + "/chat/completions"
+	payload := map[string]interface{}{
+		"model":       model,
+		"messages":    messages,
+		"temperature": 0.7,
+		"stream":      true,
+	}
+
+	body, _ := json.Marshal(payload)
+	req, _ := http.NewRequest("POST", url, bytes.NewReader(body))
+	req.Header.Set("Authorization", "Bearer "+c.APIKey)
+	req.Header.Set("Content-Type", "application/json")
+
+	resp, err := http.DefaultClient.Do(req)
+	if err != nil {
+		color.Red("Error: %v", err)
+		os.Exit(1)
+	}
+	defer resp.Body.Close()
+
+	var fullReply strings.Builder
+	scanner := bufio.NewScanner(resp.Body)
+	for scanner.Scan() {
+		line := scanner.Text()
+		if strings.HasPrefix(line, "data: ") {
+			data := line[6:]
+			if data == "[DONE]" {
+				break
+			}
+			var chunk map[string]interface{}
+			if json.Unmarshal([]byte(data), &chunk) == nil {
+				if choices, ok := chunk["choices"].([]interface{}); ok && len(choices) > 0 {
+					if delta, ok := choices[0].(map[string]interface{})["delta"].(map[string]interface{}); ok {
+						if content, ok := delta["content"].(string); ok {
+							fmt.Print(content)
+							fullReply.WriteString(content)
+						}
+					}
+				}
+			}
+		}
+	}
+	fmt.Println()
+	return fullReply.String()
+}
diff --git a/main.go b/main.go
index 9c9b3bd..3c1c565 100644
--- a/main.go
+++ b/main.go
@@ -1,9 +1,6 @@
 package main
 
-import (
-	_ "github.com/spf13/cobra"
-	"gmgauthier.com/grokkit/cmd"
-)
+import "gmgauthier.com/grokkit/cmd"
 
 func main() {
 	cmd.Execute()