Lettr
Use Lettr with AI apps and agents through Vercel Connect. Follow a complete setup guide for secure runtime access.
Install the skill
$ npx skills add vercel/vercel-plugin --skill vercel-connectConnect to
Use its data in agents(opens in new tab) and apps(opens in new tab)
import { getToken } from '@vercel/connect';const token = await getToken('lettr/acme-lettr');
Use Lettr in apps and agents
Send transactional messages and manage email campaigns, templates, and audiences.
Read the Lettr developer docs(opens in new tab)Why use Vercel Connect with Lettr?
Credentials on demand
Request Lettr credentials only when your application or agent needs them instead of copying secrets into application code.
Access for the right subject
Keep app-scoped Lettr access behind a reusable connector controlled by your team.
Centralized credential management
Manage Lettr credentials in one place and retrieve them through a consistent runtime API.
Vercel-native controls
Bind connections to the projects and environments that need them while Vercel OIDC authenticates each runtime request.
Use Lettr with your stack
Follow a complete setup for the Connect SDK or a supported agent framework.
Add Lettr to an existing Vercel application with the Connect SDK.
Install the Connect SDK
npm install @vercel/connectCreate the Lettr connector
Run these commands from the project that will use the connection.
vercel linkvercel connect create lettr --name acme-lettrvercel env pullRequest Lettr credentials
app/api/route.tsimport { getToken } from '@vercel/connect';const token = await getToken('lettr/acme-lettr');
