diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..e064c68
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,10 @@
+module gitea.starryskymeow.cn/xkm/ask
+
+go 1.26.1
+
+require (
+	gitea.starryskymeow.cn/xkm/llm-api v0.0.0-20260321081605-eb8f4a273c21 // indirect
+	github.com/alecthomas/kong v1.14.0 // indirect
+	github.com/alecthomas/kong-toml v0.4.0 // indirect
+	github.com/pelletier/go-toml v1.9.5 // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..07f7a40
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,10 @@
+gitea.starryskymeow.cn/xkm/llm-api v0.0.0-20260321073716-c7e6863c6f72 h1:wvpDlMPNVifnOfP729SBZuC5fY/rTffhkMeep0vrDB0=
+gitea.starryskymeow.cn/xkm/llm-api v0.0.0-20260321073716-c7e6863c6f72/go.mod h1:uvdSSW01wuwvyiaIOsYYrffQ0SnRIHgOlJDVZmYjejQ=
+gitea.starryskymeow.cn/xkm/llm-api v0.0.0-20260321081605-eb8f4a273c21 h1:EiDI/mUpObzQNn9Edb8UuIuClVUctxTEQHhaB9KgNug=
+gitea.starryskymeow.cn/xkm/llm-api v0.0.0-20260321081605-eb8f4a273c21/go.mod h1:uvdSSW01wuwvyiaIOsYYrffQ0SnRIHgOlJDVZmYjejQ=
+github.com/alecthomas/kong v1.14.0 h1:gFgEUZWu2ZmZ+UhyZ1bDhuutbKN1nTtJTwh19Wsn21s=
+github.com/alecthomas/kong v1.14.0/go.mod h1:wrlbXem1CWqUV5Vbmss5ISYhsVPkBb1Yo7YKJghju2I=
+github.com/alecthomas/kong-toml v0.4.0 h1:sSK/HHi2M5jqSXYTxmuxkdZcJ+ip9jhYvwcjDGcaJBQ=
+github.com/alecthomas/kong-toml v0.4.0/go.mod h1:hRVV9iGmqYsFqs17jFQgqhkjYIxiklbfy95xJ3nlpKI=
+github.com/pelletier/go-toml v1.9.5 h1:4yBQzkHv+7BHq2PQUZF3Mx0IYxG7LsP222s7Agd3ve8=
+github.com/pelletier/go-toml v1.9.5/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..9f16b0e
--- /dev/null
+++ b/main.go
@@ -0,0 +1,90 @@
+package main
+
+import (
+	"context"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+
+	llm_api "gitea.starryskymeow.cn/xkm/llm-api"
+	"github.com/alecthomas/kong"
+	kongtoml "github.com/alecthomas/kong-toml"
+)
+
+var cli struct {
+	Config          string   `short:"c" default:"~/.config/ask.toml" help:"Path to config file"`
+	BaseURL         string   `short:"b" help:"LLM API base URL" default:"https://api.openai.com/v1"`
+	ResponseApi     bool     `default:"false" help:"Use /v1/responses or /v1/chat/completions"`
+	ApiKey          string   `short:"k" help:"LLM API Key"`
+	Model           string   `short:"m" help:"LLM model" default:"gpt-5-nano"`
+	ReasoningEffort string   `help:"LLM reasoning effort (note that some LLMs may not support certain settings)" default:"minimal"`
+	Temperature     *float64 `help:"LLM Temperature"`
+	Src             []string `arg:"" optional:"" name:"src" help:"Text to ask, or leave empty to use stdin"`
+}
+
+func main() {
+	_ = kong.Parse(&cli)
+	_ = kong.Parse(
+		&cli,
+		kong.Configuration(kongtoml.Loader, cli.Config),
+	)
+
+	src := strings.Join(cli.Src, " ")
+
+	if src == "" {
+		stdin, err := io.ReadAll(os.Stdin)
+		src = string(stdin)
+		if err != nil {
+			panic(err)
+		}
+	}
+
+	var pr io.ReadCloser
+	var err error
+	if cli.ResponseApi {
+		pr, err = llm_api.OpenaiStreamChatResponses(
+			context.Background(),
+			http.DefaultClient,
+			cli.BaseURL,
+			cli.ApiKey,
+			cli.Model,
+			cli.ReasoningEffort,
+			nil,
+			[]llm_api.OpenaiChatMessage{
+				{
+					Role:    "user",
+					Content: src,
+				},
+			},
+		)
+		if err != nil {
+			log.Fatal(err)
+		}
+	} else {
+		pr, err = llm_api.OpenaiStreamChatCompletions(
+			context.Background(),
+			http.DefaultClient,
+			cli.BaseURL,
+			cli.ApiKey,
+			cli.Model,
+			cli.ReasoningEffort,
+			nil,
+			[]llm_api.OpenaiChatMessage{
+				{
+					Role:    "user",
+					Content: src,
+				},
+			},
+		)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+	defer pr.Close()
+	_, err = io.Copy(os.Stdout, pr)
+	if err != nil {
+		log.Fatal(err)
+	}
+}