Introduction
Welcome to Open Letter Connect!
Open Letter Connect is a platform designed to transform your marketing strategies by offering seamless integration with direct mail campaigns. Our goal is to help businesses connect effectively with their audience through one-off and bulk mail services, easy-to-use template builders, and robust analytics.
Purpose of the API
The primary goal of the Open Letter Connect API is to simplify the execution of direct mail campaigns, allowing businesses to concentrate on their marketing strategies instead of logistical challenges. By leveraging our API, you can automate processes, ensure accuracy, and access detailed insights on campaign performance.
Features
- One-Off and Bulk Mail: Reach both individual customers and large groups effortlessly.
- Template Builder: Customize your direct mail with our easy-to-use builder.
- Address Verification: Ensure accuracy with our address verification system.
- Integrations: Connect your CRM and automate mail processes.
- Analytics & Mail Tracking: Track the performance of your campaigns with in-depth analytics.
Key Benefits
- Seamless Integration: Easily integrate with your existing systems and workflows.
- Efficient Campaigns: Automate direct mail processes for better reach and efficiency.
- Customizable Features: Tailor the API to meet your business needs.
- Comprehensive Tracking: Monitor the success of your campaigns with built-in analytics.
Explore our platform and take your direct mail campaigns to the next level!
Visit Open Letter Connect to learn more.
HTTP Response Codes
The API uses standard HTTP response codes. In case of client or server errors, a list of one or more errors in JSON format will be returned in the response body.
| Code | Description |
|---|---|
| 200 | OK |
| 201 | Created |
| 204 | No Content |
| 400 | Bad Request |
| 401 | Unauthorized |
| 403 | Forbidden |
| 404 | Not Found |
| 422 | Unprocessed entity |
| 405 | Method Not Allowed |
| 500 | Internal Server Error |
| 503 | Service Unavailable |
HTTP Verbs
The Open Letter Connect API uses the appropriate HTTP verbs for each action.
| Verb | Description |
|---|---|
| GET | Retrieve resources |
| POST | Create resources |
| PUT | Update resources |
| PATCH | Update specific item in a resource |
| DELETE | Delete resources |
Authentication
For production applications, we recommend using OAuth authentication. If authentication is missing or incorrect, the system returns a 401 Unauthorized status.
To authenticate, include the OAuth token in the header:
$ curl -H 'Authorization: Bearer YOUR_OAUTH_TOKEN' https://api.openletterconnect.com/api/[version]/[endpoint]
To learn more about authentication, please refer to our authentication guide
Pagination
For requests that return multiple items, the results are paginated by default to 25 items per page. You can request additional pages using the page parameter and set a custom page size up to 100 with the pageSize parameter.
Timezone
All times returned by the API are in the Coordinates Universal Time (UCT+00:00).
Target Audience
This API is designed for developers looking to automate and integrate direct mail campaigns seamlessly into their applications. Whether you're building a custom app or enhancing existing software, this API provides robust tools to meet your needs.
Support
If you need help or have any questions, our support team is here for you. You can reach us via:
- Email: [email protected]
- Phone: +1 (555) 123-4567
- Live Chat: Available on our website
We’re here to assist you in getting the most out of our API and platform.