BUILT BY THE CO-FOUNDER OF SENDGRID

100,000 emails monthly. Zero dollars.

Send transactional emails instantly — no consent required. Reach opted-in recipients for marketing. 100K emails a month, on the house.

No credit card 100K emails free/month Enterprise infrastructure
LOG_01

GoodSender is bringing permission back to the inbox. It's the most builder-friendly way to scale transactional mail without the tax.

Isaac Saldana
Co-founder, SendGrid

Start sending in minutes.

The simplest way to send email via API. Send transactional email free — confirmations, notifications, OTP codes.

curl -X POST https://api.goodsender.com/v1/emails/send \
  -H "Authorization: Bearer <your-api-key>" \
  -H "Content-Type: application/json" \
  -d '{
    "emails": [
      {
        "from": { "email": "sender@example.com", "name": "Example Sender" },
        "to": [{ "email": "recipient@example.com" }],
        "subject": "Hello from GoodSender",
        "markdown_content": "## Hello from GoodSender\nYour first email is on the way."
      }
    ]
  }'
markdown

Markdown in,
email out

No template language. No rendering pipeline. Pass the model output directly — we handle the conversion to bulletproof email HTML.

# Welcome aboard
Thanks for signing up.
Here's what to expect...
- Feature one
- Feature two
YOUR_MARKDOWN
double_arrow
<h1>Welcome...</h1>
<p>Thanks for...</p>
<ul>
<li>Feature one</li>
</ul>
GOOD_SENDER_CORE
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Gmail
Outlook
Apple Mail
90+ MORE
INBOX_READY
01
Add Recipient

Send a consent request to any email address. It takes ~150ms.

02
Confirmation

They click a link in a standard, high-reputation system email.

03
Confirmed
COST: $0.00

The recipient is unlocked for your API key globally. Send away.

The Permission Loop

ISPs love permission-first senders. We reward that behavior by footing the bill.

// NO_PERMISSION_REQUIRED

Transactional templates just work.

Pick a template, pass your variables, and it's in the inbox. Transactional emails are pre-cleared — no consent workflow required.

encrypted
MFA Enrollment

Verify a user as they turn on multi-factor authentication.

devices
New Device

Alert users when their account is accessed from a new device.

login
Login

Magic-link or one-click sign-in without a password.

receipt_long
Order Completed

Confirm a successful checkout with receipt-ready details.

pin
OTP Code

One-time passcodes for 2FA and passwordless login.

more_horiz
More coming

We expand the catalog over time based on what customers ask for.

// All other emails → permission required. Transactional → ship it.

No bill until you're at scale

100K emails free every month — no credit card, no trial period. Beyond that, $1 per 100K. Here's how that compares:

FREE TIER
$0

First 100k emails/month free — covers everything you send, transactional and marketing alike. Practically free for most businesses at any realistic volume.

PAY AS YOU GO
$1/100k

Beyond your free 100k — $1 per additional 100k. No subscriptions, no surprises.

TRANSACTIONAL
No gate

Transactional templates — MFA, New Device, Login, Order Completed, OTP — don't require permission. Catalog grows with customer demand.

swipe swipe to compare

PROVIDER100K/MO500K/MO1M/MO10M/MO
Resend$35$350$650CUSTOM
Sengrid (Twilio)$34.95$499$799CUSTOM
Mailtrap$30$300$750CUSTOM
Mailgun$75$400$700CUSTOM
Amazon SES$10-12$50-60$100-120CUSTOM
GoodSender$0$4$9$99

// Prices are approximate and based on publicly listed rates as of Nov 2025. Competitor pricing may vary by plan, volume tier, and billing period.

Who it's for

// BUILT_FOR

Makers & Builders

  • _ Indie developers & solo founders
  • _ AI startups & agentic workflow builders
  • _ Small teams & side projects
  • _ Anyone tired of $30–50/mo email bills
// NOT_FOR

Marketing Teams

  • Enterprise marketing departments
  • High-volume cold outreach teams
  • Marketing automation heavy users

Need enterprise-grade volume?

Check out Laneful →

Free to start. Cheap to scale.

Add your domain, get an API key, and send your first email in under 10 minutes.

Read the FAQ →