diff --git a/index.yaml b/index.yaml
index 65fb7c20..cb26663a 100644
--- a/index.yaml
+++ b/index.yaml
@@ -1,4 +1,6 @@
 tools:
+  sendgrid:
+    reference: ./sendgrid
   database:
     reference: ./database
   atlassian-jira:
diff --git a/sendgrid/Makefile b/sendgrid/Makefile
new file mode 100644
index 00000000..f648bc93
--- /dev/null
+++ b/sendgrid/Makefile
@@ -0,0 +1,3 @@
+.PHONY: build
+build:
+	go build -o bin/gptscript-go-tool .
diff --git a/sendgrid/cmd/send.go b/sendgrid/cmd/send.go
new file mode 100644
index 00000000..ea332e4b
--- /dev/null
+++ b/sendgrid/cmd/send.go
@@ -0,0 +1,90 @@
+package cmd
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/sendgrid/sendgrid-go"
+	"github.com/sendgrid/sendgrid-go/helpers/mail"
+)
+
+func Send(ctx context.Context, to, subject, textBody, htmlBody string) (string, error) {
+	// Retrieve and trim environment variables
+	sendGridAPIKey := strings.TrimSpace(os.Getenv("SENDGRID_API_KEY"))
+	if sendGridAPIKey == "" {
+		return "", fmt.Errorf("SENDGRID_API_KEY is not set")
+	}
+
+	fromEmail := strings.TrimSpace(os.Getenv("OBOT_NO_REPLY_EMAIL"))
+	if fromEmail == "" {
+		return "", fmt.Errorf("OBOT_NO_REPLY_EMAIL is not set")
+	}
+
+	to = strings.TrimSpace(to)
+	subject = strings.TrimSpace(subject)
+	textBody = strings.TrimSpace(textBody)
+	htmlBody = strings.TrimSpace(htmlBody)
+
+	if to == "" {
+		return "", fmt.Errorf("recipient email (to) is required")
+	}
+
+	// Split comma-delimited recipients and trim each email
+	toEmails := strings.Split(to, ",")
+	for i := range toEmails {
+		toEmails[i] = strings.TrimSpace(toEmails[i])
+	}
+
+	// Remove any empty emails after trimming
+	var validEmails []string
+	for _, email := range toEmails {
+		if email != "" {
+			validEmails = append(validEmails, email)
+		}
+	}
+
+	if len(validEmails) < 1 {
+		return "", fmt.Errorf("no valid recipient emails provided")
+	}
+
+	if subject == "" {
+		return "", fmt.Errorf("subject is required")
+	}
+
+	if textBody == "" && htmlBody == "" {
+		return "", fmt.Errorf("either textBody or htmlBody is required")
+	}
+
+	from := mail.NewEmail("Obot", fromEmail)
+	personalization := mail.NewPersonalization()
+
+	for _, email := range validEmails {
+		personalization.AddTos(mail.NewEmail("", email))
+	}
+
+	// Create email message
+	message := mail.NewV3Mail()
+	message.SetFrom(from)
+	message.Subject = subject
+	message.AddPersonalizations(personalization)
+	if textBody != "" {
+		message.AddContent(mail.NewContent("text/plain", textBody))
+	}
+	if htmlBody != "" {
+		message.AddContent(mail.NewContent("text/html", htmlBody))
+	}
+
+	client := sendgrid.NewSendClient(sendGridAPIKey)
+	response, err := client.SendWithContext(ctx, message)
+	if err != nil {
+		return "", fmt.Errorf("failed to send email: %w", err)
+	}
+
+	if response.StatusCode < 200 || response.StatusCode >= 300 {
+		return "", fmt.Errorf("failed to send email: status code %d, body: %s", response.StatusCode, response.Body)
+	}
+
+	return fmt.Sprintf("email sent successfully with status code: %d", response.StatusCode), nil
+}
diff --git a/sendgrid/credential/tool.gpt b/sendgrid/credential/tool.gpt
new file mode 100644
index 00000000..2fda069d
--- /dev/null
+++ b/sendgrid/credential/tool.gpt
@@ -0,0 +1,6 @@
+
+Name: SendGrid API Key
+Share Credential: github.com/gptscript-ai/credential as sendgrid
+    with "Please enter your SendGrid API key" as message and
+    token as field and
+    SENDGRID_API_KEY as env
diff --git a/sendgrid/go.mod b/sendgrid/go.mod
new file mode 100644
index 00000000..2df7ff4e
--- /dev/null
+++ b/sendgrid/go.mod
@@ -0,0 +1,11 @@
+module github.com/obot-platform/tools/sendgrid
+
+go 1.23.4
+
+require github.com/sendgrid/sendgrid-go v3.16.0+incompatible
+
+require (
+	github.com/sendgrid/rest v2.6.9+incompatible // indirect
+	github.com/stretchr/testify v1.10.0 // indirect
+	golang.org/x/net v0.33.0 // indirect
+)
diff --git a/sendgrid/go.sum b/sendgrid/go.sum
new file mode 100644
index 00000000..c6f84970
--- /dev/null
+++ b/sendgrid/go.sum
@@ -0,0 +1,14 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sendgrid/rest v2.6.9+incompatible h1:1EyIcsNdn9KIisLW50MKwmSRSK+ekueiEMJ7NEoxJo0=
+github.com/sendgrid/rest v2.6.9+incompatible/go.mod h1:kXX7q3jZtJXK5c5qK83bSGMdV6tsOE70KbHoqJls4lE=
+github.com/sendgrid/sendgrid-go v3.16.0+incompatible h1:i8eE6IMkiCy7vusSdacHHSBUpXyTcTXy/Rl9N9aZ/Qw=
+github.com/sendgrid/sendgrid-go v3.16.0+incompatible/go.mod h1:QRQt+LX/NmgVEvmdRw0VT/QgUn499+iza2FnDca9fg8=
+github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
+github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+golang.org/x/net v0.33.0 h1:74SYHlV8BIgHIFC/LrYkOGIwL19eTYXQ5wc6TBuO36I=
+golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/sendgrid/main.go b/sendgrid/main.go
new file mode 100644
index 00000000..a6758b31
--- /dev/null
+++ b/sendgrid/main.go
@@ -0,0 +1,52 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"github.com/obot-platform/tools/sendgrid/cmd"
+)
+
+func main() {
+	if len(os.Args) != 2 {
+		fmt.Println("Usage: gptscript-go-tool <command>")
+		os.Exit(1)
+	}
+	command := os.Args[1]
+
+	// Run the requested command
+	var (
+		result string
+		err    error
+		ctx    = context.Background()
+	)
+	switch command {
+	case "sendEmail":
+		// Retrieve environment variables for sending email
+		to := os.Getenv("TO")
+		subject := os.Getenv("SUBJECT")
+		textBody := os.Getenv("TEXT_BODY")
+		htmlBody := os.Getenv("HTML_BODY")
+
+		// Validate required fields
+		if to == "" || subject == "" || (textBody == "" && htmlBody == "") {
+			fmt.Println("Missing required environment variables: TO, SUBJECT, and at least one of TEXT_BODY or HTML_BODY")
+			os.Exit(1)
+		}
+
+		// Call the Send function
+		result, err = cmd.Send(ctx, to, subject, textBody, htmlBody)
+
+	default:
+		fmt.Printf("Unknown command: %s\n", command)
+		os.Exit(1)
+	}
+
+	if err != nil {
+		fmt.Println(err)
+		os.Exit(1)
+	}
+
+	fmt.Print(result)
+}
diff --git a/sendgrid/tool.gpt b/sendgrid/tool.gpt
new file mode 100644
index 00000000..6684416f
--- /dev/null
+++ b/sendgrid/tool.gpt
@@ -0,0 +1,31 @@
+Name: SendGrid
+Metadata: category: Capability
+Metadata: icon: https://cdn.jsdelivr.net/npm/@phosphor-icons/core@2/assets/duotone/envelope-duotone.svg
+Share Tools: Send Email
+
+---
+
+Name: Send Email
+Description: Send an email using SendGrid.
+Share Context: Send Email Context
+Credentials: ./credential/tool.gpt
+Param: to: A comma-delimited list of email addresses to send the email to.
+Param: subject: The subject of the email.
+Param: html_body: (optional) The HTML body of the email.
+Param: text_body: (optional) The plain text body of the email.
+
+#!${GPTSCRIPT_TOOL_DIR}/bin/gptscript-go-tool sendEmail
+
+---
+Name: Send Email Context
+Type: context
+
+# START INSTRUCTIONS: Send Email tool
+
+The Send Email tool allows you to send emails using SendGrid.
+
+- At least one of `html_body` or `text_body` must be provided.
+- If both `html_body` and `text_body` are provided, both will be included in the email.
+- Don't sign the email unless otherwise asked to do so.
+
+# END INSTRUCTIONS: Send Email tool