Put Open Letter Connect to work with AI and enterprise-grade automation
Automate smarter with Open Letter Connect and scale with confidence. Zapier is built for enterprise-grade security, compliance, and performance.
- No-code AI automation
- Full audit trails and controls
- SOC 2 and GDPR compliant
- Easy visual workflow builder
- 9,000+ apps, 450+ AI tools
- Free tier available
Join millions worldwide who automate their work using Zapier
Launch your first automated workflow
Send professional letters in Open Letter Connect when new tags are added to contacts in Follow Up Boss
Supported triggers and actions
Zapier helps you create workflows that connect your apps to automate repetitive tasks. A trigger is an event that starts a workflow, and an action is an event a Zap performs.
- Select TemplateRequired
- Select Postage TypeRequired
- Offer Percentage
- To First Name
- To Last Name
- To Company
- To Email Address
- To Phone no.
- To Address Line 1Required
- To Address Line 2
- To CityRequired
- To StateRequired
- To Zip CodeRequired
- From First Name
- From Last Name
- From Company
- From Email Address
- From Phone no.
- From Address Line 1
- From Address Line 2
- From City
- From State
- From Zip Code
ActionWrite- Select templateRequired
- Select Envelope StyleRequired
- Offer Percentage
- To First Name
- To Last Name
- To Company
- To Email Address
- To Phone no.
- To Address Line 1Required
- To Address Line 2
- To CityRequired
- To StateRequired
- To Zip CodeRequired
- From First Name
- From Last Name
- From Company
- From Email Address
- From Phone no.
- From Address Line 1
- From Address Line 2
- From City
- From State
- From Zip Code
ActionWrite- Select TemplateRequired
- Offer Percentage
- To First Name
- To Last Name
- To Company
- To Email Address
- To Phone no.
- To Address Line 1Required
- To Address Line 2
- To CityRequired
- To StateRequired
- To Zip CodeRequired
- From First Name
- From Last Name
- From Company
- From Email Address
- From Phone no.
- From Address Line 1
- From Address Line 2
- From City
- From State
- From Zip Code
ActionWrite- Select templateRequired
- Select Envelope StyleRequired
- Offer Percentage
- To First Name
- To Last Name
- To Company
- To Email Address
- To Phone no.
- To Address Line 1Required
- To Address Line 2
- To CityRequired
- To StateRequired
- To Zip CodeRequired
- From First Name
- From Last Name
- From Company
- From Email Address
- From Phone no.
- From Address Line 1
- From Address Line 2
- From City
- From State
- From Zip Code
ActionWrite
- Select CampaignRequired
- To First Name
- To Last Name
- To Company
- To Email Address
- To Phone no.
- To Address Line 1Required
- To Address Line 2
- To CityRequired
- To StateRequired
- To Zip CodeRequired
- From First Name
- From Last Name
- From Company
- From Email Address
- From Phone no.
- From Address Line 1
- From Address Line 2
- From City
- From State
- From Zip Code
ActionWrite- Select templateRequired
- Select Postage TypeRequired
- Select Envelope StyleRequired
- Offer Percentage
- To First Name
- To Last Name
- To Company
- To Email Address
- To Phone no.
- To Address Line 1Required
- To Address Line 2
- To CityRequired
- To StateRequired
- To Zip CodeRequired
- From First Name
- From Last Name
- From Company
- From Email Address
- From Phone no.
- From Address Line 1
- From Address Line 2
- From City
- From State
- From Zip Code
ActionWrite- Select templateRequired
- Select Postage TypeRequired
- Offer Percentage
- Select Envelope StyleRequired
- To First Name
- To Last Name
- To Company
- To Email Address
- To Phone no.
- To Address Line 1Required
- To Address Line 2
- To CityRequired
- To StateRequired
- To Zip CodeRequired
- From First Name
- From Last Name
- From Company
- From Email Address
- From Phone no.
- From Address Line 1
- From Address Line 2
- From City
- From State
- From Zip Code
ActionWrite- Select TemplateRequired
- Select Postage TypeRequired
- Offer Percentage
- To First Name
- To Last Name
- To Company
- To Email Address
- To Phone no.
- To Address Line 1Required
- To Address Line 2
- To CityRequired
- To StateRequired
- To Zip CodeRequired
- From First Name
- From Last Name
- From Company
- From Email Address
- From Phone no.
- From Address Line 1
- From Address Line 2
- From City
- From State
- From Zip Code
ActionWrite
For builders
Let your AI safely access Open Letter Connect
Go beyond Zap workflows. Install Zapier in your AI to call Open Letter Connect actions directly from your agents—with governance built in. Authenticate once. Revoke access anytime.
Call actions in natural language with Zapier MCP
Act in Open Letter Connect from your AI—no exposed credentials, and you control which actions your AI can touch. One install covers 9,000+ other apps.
Example actions on this page
Works with
Claude · ChatGPT · Cursor · Any MCP-compatible AI
Work in code with the Zapier SDK
Expose Open Letter Connect actions from backend services, scripts, or agent code. Zapier handles the OAuth and scoped permissions. Access 9,000+ apps, plus thousands more with .fetch().
Install
npm install @zapier/zapier-sdk npm install -D @zapier/zapier-sdk-cli zapier-sdk login # create a Open Letter Connect connection @ https://zapier.com/app/assets/connections
Run an action
// Typescript
import { createZapierSdk } from "@zapier/zapier-sdk";
const zapier = createZapierSdk();
const { data: connection } = await zapier.findFirstConnection({ app: "open-letter-connect", owner: "me" });
await zapier.runAction({
app: 'open-letter-connect',
action: 'self_mailer',
connection: connection.id,
input: {
{inputKeyValuePairs}
},
});Direct API calls to raw endpoints through fetch are not yet subject to org-level app and action restrictions.










