thanks.io Seamless

thanks.io + Seamless Integrations, Built by an AI Agent

Put thanks.io + Seamless to work with AI and enterprise-grade automation

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Just describe what you need — the Agent researches both APIs and builds the real automation on demand.

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Triggers & actions for thanks.io and Seamless

Everything thanks.io and Seamless can do inside a workflow — the triggers that start one and the actions that run when it fires.

thanks.io Explore thanks.io →

thanks.io is a direct mail platform that automates sending personalized handwritten postcards, letters, and note cards to customers.

Triggers
Get Order Details

Get details of past order by ID.

Item Delivered

Triggers when a postcard, letter, notecard, or giftcard is delivered to a recipient.

New Recipient Added

Triggers when a Recipient is added to one of your mailing lists via the API, Zapier, landing pages, retargeting, or card builder manual add.

QR Code Scan

Triggers when a QR Code on a postcard, letter, or notecard is scanned. This will also trigger when a giftcard is redeemed.

Actions
Add Recipient

Adds a recipient to your account and to an optional list. Only US or Canadian addresses are accepted. If no/invalid address is specified and a valid email address is, we'll attempt to look up a valid street address using the email address for a fee.

Send 6x11 Postcard

Immediately sends a 6x11 postcard. If mailing address isn't provided but email is, we will attempt to lookup mailing address for 7c per successful response.

Send 6x9 Postcard

Immediately sends a 6x9 postcard. If mailing address isn't provided but email is, we will attempt to lookup mailing address for 7c per successful response.

Send 6x9 Postcard via Radius Search

Sends a 6x9 postcard to multiple customers using the provided template ID or a body, as well as an address to search for nearest neighbors. There is a $.05 lookup fee for each record.

Send Giftcard

Sends a giftcard to a customer using the provided template ID or a body, as well as contact and address information.

Send Windowed Letter

Immediately sends a Windowed Letter. If mailing address isn't provided but email is, we will attempt to lookup mailing address for 7c per successful response.

Seamless Explore Seamless →

Seamless.ai is an AI-powered sales intelligence search engine that helps sales professionals find verified contact information and leads.

Triggers
New Company

Triggers when a new "My Company" is added in Seamless.AI.

New Contact

Triggers when a new "My Contact" is researched in Seamless.AI.

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Customer Stories

See how leading technology firms are scaling their operations

Amazing Product With Exceptional Support from the team. By using Knit we managed to speed up our development by orders of magnitude.
H
Huynh H
Developer, Multiplier
A brilliant tool to let you seamlessly integrate with many different systems. It is very easy to integrate with and customer support is next level.
J
Jayesh
Co-Founder, Scrut
Seamless integration experience. Well-documented, self-explanatory APIs, and excellent service and support.
P
Poorvi
Product Manager, Onsurity
Easy to integrate. Knit's dashboard is intuitive for setting up and testing integrations, and the sandbox is extremely useful during development.
A
Aditya
Product Lead, RazorpayXPayroll
Knit shipped a brand-new Timesheet API in a week and handed us a ready-to-use NetSuite sandbox. That velocity is priceless when you're running payroll in 40+ countries.
R
Rohit Singh
GM, Payoneer Workforce Management

#1 in Ease of Integrations

4.9 out of 5 stars

4.9 out of 5 stars on G2

G2 Leader, Spring 2026G2 Fastest Implementation, Spring 2026G2 High Performer, Spring 2026G2 Best Est. ROI, Spring 2026
FAQ

Common questions about thanks.io + Seamless

Is there a pre-built thanks.io + Seamless automation?

Not yet, but Knit's Integrations Agent can build one — describe what you want and it researches thanks.io and Seamless's public API docs (or your own uploaded docs) and builds a working automation.

Does this require a pre-built thanks.io or Seamless connector?

No. The Agent works whether or not thanks.io or Seamless already has a pre-built connector in Knit's catalog — it researches the real API surface either way.

How long does it take to build?

Minutes to build a first working version, not weeks — you test it against real data before it goes anywhere near production.

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