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Edit Letterhead
Fix links, add an OpenAPI spec or an SDK, correct the auth types. An admin reviews and merges.
Name
Domain
Headline
Description
Letterhead allows you to create, curate, manage, and publish great newsletters. With Letterhead, your newsletters can do all the work for you.
Logo URL
Where to get credentials
Auth types
oauth2
oauth1
apiKey
basic
none
Categories
Developer Tools
Collaboration & Communication
AI & ML
File Management
Project Management
CRM
Analytics & Data
Entertainment & Media
Productivity
Education & LMS
Design & Creative Tools
Marketing & Social Media
Scheduling & Booking
E-commerce
Finance & Accounting
Security & Compliance
Other
APIs
Add API
Why / sources
Title
Propose changes