
Thanks.io
Direct mail converts at 5x digital channels, but managing it manually is painful. Your AI agent creates mailing lists, adds recipients, and sends personalized postcards and letters through Thanks.io, all from a single conversation. Physical mail campaigns launch without touching the Thanks.io dashboard.




From building mailing lists to sending handwritten postcards and previewing letters, your AI agent manages every step of physical mail campaigns through Thanks.io's API.
Thanks.io
Discover how businesses combine AI agents with Thanks.io to launch direct mail campaigns faster, personalize outreach at scale, and track every mailer.
A customer completes a high-value purchase on your website. Your AI Agent triggers a personalized postcard through Thanks.io with a handwritten-style thank you message, the customer's name, and a discount code for their next order. The customer receives a physical card days later, a tangible touchpoint that email cannot replicate. Repeat purchase rates climb with minimal effort from your marketing team.
A restaurant opens a new location and wants to reach nearby residents. Your AI Agent uses Thanks.io's radius search to build a mailing list of addresses within 3 miles, then sends each household a postcard with the grand opening date and a first-visit offer. Hundreds of locally targeted mailers go out from a single conversation. The restaurant fills seats on opening week without digital ad spend.
A real estate agent finishes an open house and wants to follow up with attendees who left their addresses. Your AI Agent adds each attendee to a Thanks.io mailing list and sends personalized notecards thanking them for visiting, with property details and the agent's contact info in a handwritten style. Attendees receive a memorable mail piece that digital follow-ups cannot match.

Thanks.io
FAQs
The agent calls Thanks.io's Send Postcard endpoint with the front image URL, message text, handwriting style, recipient address, and optional customizations like background images or return addresses. Thanks.io prints and mails the postcard through USPS. The agent receives a confirmation with order details.
Yes. The agent creates a new mailing list via Create Mailing List, then adds individual recipients using Add Recipient or batch-adds them using Create Multi Recipients. Each recipient includes full mailing address, name, email, and optional custom fields.
Tars requires your Thanks.io API key, which you can generate from your Thanks.io dashboard under API settings. This key provides access to mailing lists, recipient management, order placement, previews, and sub-account management.
Absolutely. Thanks.io offers preview endpoints for postcards, notecards, letters, and windowless letters. The agent generates a PDF proof or image previews showing exactly what the recipient will receive. You approve the design in the conversation before committing to the send.
The agent provides a target address or postal code and a radius distance to Thanks.io's Radius Search endpoint. Thanks.io returns residential addresses within that area, which the agent can append to a mailing list. Filters for condos and additional data append options are available.
No. Recipient addresses are managed in your Thanks.io account. Tars sends address data to Thanks.io during the conversation for list building and order placement, but does not cache or store mailing addresses on its servers between sessions.
Thanks.io offers multiple realistic handwriting styles. The agent can retrieve the full list using the List Handwriting Styles endpoint. Each style has a unique ID that is passed when creating postcards, notecards, or letters to give the mail piece a personal, handwritten appearance.
The agent can search orders by recipient name or address using Thanks.io's order search endpoints. Order records include status information and tracking details. For comprehensive delivery tracking, Thanks.io provides USPS tracking data for supported mail types.
Don't limit your AI Agent to basic conversations. Watch how to configure and add powerful tools making your agent smarter and more functional.

Privacy & Security
At Tars, we take privacy and security very seriously. We are compliant with GDPR, ISO, SOC 2, and HIPAA.