handwrytten.com
Handwrytten is a service for automating the sending of physical handwritten notes and cards. It provides card ordering, address book, custom card, gift card, QR code, and related mailing features.
Handwrytten exposes one REST API for sending handwritten cards and managing related resources; it primarily uses dashboard-generated API keys, with a deprecated login/password-to-UID auth flow still documented for legacy clients.
- Handwrytten APIdiscovered
Sign in to the Handwrytten dashboard, open Integrations, click Add API Key, give the key a name, and copy the displayed value. The API docs say keys are created and managed on the Integrations page, and Make's vendor guide lists the same steps via your profile menu → Integrations.
Create an account from Sign Up, then use your account email and password with the legacy sign-in flow. The current API docs explicitly mark login/password authentication via /auth/authorization as deprecated but still supported for existing integrations.
Use the legacy POST /auth/authorization login flow with your Handwrytten account credentials to obtain a uid token. The Swagger/OpenAPI description says the login response returns uid, described as a token for future authorized calls; current docs note this login/password flow is deprecated but still supported for existing integrations.
conventions · 0/8 published
- integrations.json✗
/.well-known/integrations.json - llms.txt✗
/llms.txt - API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✗
/.well-known/oauth-protected-resource - Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing