Trackably
Product
Solutions
Templates
Pricing
Resources
Trackably

The all-in-one automated follow-up system for Real Estate professionals. Direct Mail + SMS + Email, on autopilot.

Trackably Inc.

1300 Evans Ave Ste 30

San Francisco, CA 94188

(512) 555-0123

Solutions

  • For Investors
  • For Agents
  • For Wholesalers
  • For Home Services

Features

  • Campaign Builder
  • Lead Finder (Map)
  • Skip Tracing
  • Direct Mail API

Resources

  • Blog
  • ROI Calculator
  • Success Stories
  • Help Center

Company

  • About Us
  • Careers
  • Contact
  • Security
  • Compliance

© 2026 Trackably Inc. All rights reserved.

Direct Mail API

Programmatic
Direct Mail at Scale

Send postcards, letters, and handwritten notes via API. 99.9% uptime. <50ms latency. Integrate physical mail into any workflow.

99.9% Uptime SLA
SOC 2 Type II
<50ms Latency
RESTful + Webhooks
Used by developers at500+real estate companies
0.0%
Uptime SLA
Enterprise-grade reliability
<0ms
Avg Latency
Lightning-fast responses
$0.0
Per Postcard
Volume discounts available
0/7
Support
Dedicated dev support

How It Works

Send your first mail piece in 4 simple steps

1

Get Your API Key

Sign up and get your API key in seconds. Test in sandbox mode with no charges.

2

Make API Call

Send a POST request with recipient address and template. Get a mail ID back instantly.

3

We Print & Ship

We print your mail piece same-day and hand it off to USPS for First Class delivery.

4

Track Delivery

Receive webhook notifications for each status change. Know exactly when mail arrives.

Get Started in Minutes

One API call to send a postcard anywhere in the US

// Send a postcard with Node.js SDK
import { Trackably } from '@trackably/sdk';

const client = new Trackably({ apiKey: process.env.TRACKABLY_API_KEY });

const mail = await client.mail.send({
  template: 'tmpl_absentee_owner',
  to: {
    name: 'John Smith',
    address_line1: '123 Main St',
    city: 'Austin',
    state: 'TX',
    zip: '78701'
  },
  merge: {
    property_address: '456 Oak Ave',
    offer_amount: '$285,000',
    agent_name: 'Sarah Johnson'
  },
  options: {
    mail_type: 'postcard',
    size: '6x9',
    double_sided: true
  }
});

console.log(`Mail scheduled: ${mail.id}`);
console.log(`Expected delivery: ${mail.expected_delivery}`);
ResponseWaiting...

Click "Run Example" to see the response

Official SDKs for every major language

🟢Node.jsv2.3.1
45K+ downloads
🐍Pythonv2.1.0
38K+ downloads
💎Rubyv1.8.2
12K+ downloads
🐘PHPv2.0.4
22K+ downloads
🔵Gov1.5.0
8K+ downloads
🟣.NETv1.2.1
15K+ downloads

Mail Types Supported

Send any format of direct mail via API

Postcards

4×66×96×11

from $0.45

Letters

1-pageMulti-page

from $0.68

Self-Mailers

8.5×1111×17

from $0.72

Handwritten Notes

A2 Card

from $2.50

Core Endpoints

Full RESTful API with comprehensive documentation

POST/api/v1/mail/sendSend a single mail piece~45ms
POST/api/v1/mail/batchSend up to 10K pieces~200ms
POST/api/v1/campaigns/createCreate drip campaign~80ms
POST/api/v1/campaigns/{id}/triggerTrigger for lead~50ms
GET/api/v1/mail/{id}/statusCheck delivery status~20ms
GET/api/v1/mail/{id}/trackingGet USPS tracking~25ms
GET/api/v1/analytics/campaignsCampaign analytics~35ms
POST/api/v1/webhooks/registerRegister endpoint~30ms
GET/api/v1/templatesList templates~15ms
POST/api/v1/templates/renderPreview with data~100ms

Built for Developers

OpenAPI spec

RESTful API

Simple, intuitive REST endpoints. JSON in, JSON out. Integrate in hours, not weeks.

5 event types

Real-time Webhooks

Get notified instantly when mail is printed, shipped, and delivered. Push to any endpoint.

SOC 2 Type II

Enterprise Security

API key auth, rate limiting, TLS 1.3, SOC 2 Type II certified infrastructure.

10K per call

Batch Operations

Send 10,000 mail pieces in a single API call. Async processing with job status endpoint.

Delivery rates

Delivery Analytics

Track every piece from print to delivery. Export analytics for custom dashboards.

Handlebars support

Dynamic Templates

Use merge tags for personalization. Pass variables for names, offers, images, and more.

Real-time Webhooks

Get notified at every step of the mail journey

mail.created0ms

Mail piece queued for printing

mail.rendered~500ms

Template rendered with merge data

mail.printed~2hrs

Printing complete at our facility

mail.shipped~4hrs

Handed off to USPS for delivery

mail.delivered~3-5 days

Confirmed delivered to recipient

Loved by Developers

"

We integrated Trackably's API in one afternoon. Now we send 5,000 postcards a day, all automated.

J
James L.
CTO, PropTech Startup
5K mailers/day
"

The webhooks are game-changing. We know exactly when mail delivers and can trigger follow-up automations.

A
Amanda T.
Lead Developer
98% delivery rate
"

Best documentation I've seen. Copy-paste examples that actually work. Had our integration live in 2 hours.

R
Ryan M.
Full Stack Dev
2hr integration

Developer FAQ

Ready to Integrate?

Get your API key and start sending mail programmatically in minutes. No credit card required to start.