diff --git a/README.md b/README.md
index 9bc2a23..488f2f5 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,26 @@
-# go-cron-sentry
+# Sentry Cron reporter
+
 Package to send reports to https://sentry.io/crons/ service.
+
+Handles stop, start and detects and sends crash too.
+
+For more information see https://docs.sentry.io/product/crons/ and https://docs.sentry.io/product/crons/getting-started/http/
+
+
+## Example
+
+```go
+package main
+
+import "github.com/teamniteo/go-sentry/cron"
+
+var cronReport = cron.NewMonitor("teamniteo", "monitor-slug-or-uuid")
+
+func main() {
+    cronReport.Start()
+    defer cronReport.Stop() // will handle crash too
+
+    // ... the rest of the stuff
+}
+
+```
\ No newline at end of file
diff --git a/cron/cron.go b/cron/cron.go
new file mode 100644
index 0000000..16f85b0
--- /dev/null
+++ b/cron/cron.go
@@ -0,0 +1,52 @@
+package cron
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/imroc/req"
+)
+
+type Cron struct {
+	Team    string
+	DSN     string
+	Monitor string
+}
+
+func (c *Cron) header() req.Header {
+	return req.Header{
+		"Content-Type":  "application/json",
+		"Authorization": fmt.Sprintf("DSN %s", c.DSN),
+	}
+}
+
+func (c *Cron) url(verb string) string {
+	return fmt.Sprintf("https://sentry.io/api/0/organizations/%s/monitors/%s/%s/", c.Team, c.Monitor, verb)
+}
+
+func NewMonitor(team, monitor string) Cron {
+	sentryDSN := os.Getenv("SENTRY_DSN")
+
+	return Cron{
+		Team:    team,
+		DSN:     sentryDSN,
+		Monitor: monitor,
+	}
+}
+
+func (m *Cron) Start() error {
+	_, err := req.Post(m.url("checkins"), m.header(), started.json())
+	return err
+}
+
+func (m *Cron) Stop() error {
+
+	// handle crash
+	if err := recover(); err != nil {
+		req.Put(m.url("latest"), m.header(), errored.json())
+		return nil
+	}
+
+	_, err := req.Put(m.url("latest"), m.header(), finished.json())
+	return err
+}
diff --git a/cron/cron_test.go b/cron/cron_test.go
new file mode 100644
index 0000000..a56f3f0
--- /dev/null
+++ b/cron/cron_test.go
@@ -0,0 +1,30 @@
+package cron
+
+import "testing"
+
+func TestCron_url(t *testing.T) {
+
+	tests := []struct {
+		name   string
+		fields Cron
+		verb   string
+		want   string
+	}{
+		{"started", Cron{"team", "dsn", "monitor"}, "checkins", "https://sentry.io/api/0/organizations/team/monitors/monitor/checkins/"},
+		{"ok", Cron{"team", "dsn", "monitor"}, "latest", "https://sentry.io/api/0/organizations/team/monitors/monitor/latest/"},
+		{"errored", Cron{"team", "dsn", "monitor"}, "latest", "https://sentry.io/api/0/organizations/team/monitors/monitor/latest/"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			c := &Cron{
+				Team:    tt.fields.Team,
+				DSN:     tt.fields.DSN,
+				Monitor: tt.fields.Monitor,
+			}
+			if got := c.url(tt.verb); got != tt.want {
+				t.Errorf("Cron.url() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
diff --git a/cron/report.go b/cron/report.go
new file mode 100644
index 0000000..306251a
--- /dev/null
+++ b/cron/report.go
@@ -0,0 +1,15 @@
+package cron
+
+import "strings"
+
+type Report string
+
+const (
+	started  Report = `{"status": "in_progress"}`
+	finished Report = `{"status": "ok"}`
+	errored  Report = `{"status": "error"}`
+)
+
+func (r Report) json() *strings.Reader {
+	return strings.NewReader(string(r))
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..889ecdb
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,5 @@
+module github.com/teamniteo/go-sentry
+
+go 1.20
+
+require github.com/imroc/req v0.3.2
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..2c66909
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+github.com/imroc/req v0.3.2 h1:M/JkeU6RPmX+WYvT2vaaOL0K+q8ufL5LxwvJc4xeB4o=
+github.com/imroc/req v0.3.2/go.mod h1:F+NZ+2EFSo6EFXdeIbpfE9hcC233id70kf0byW97Caw=