Handwrytten | Handwritten Notes Service and Card Automation
The leading online handwritten notes service. Use AI to craft your message. Automated thank you and birthday cards! Send cards online.
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aiautomationopenapiapi
Agentic Signals
llms.txt
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ai-plugin.json
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OpenAPI Spec
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Structured API
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Schema.org Markup
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OpenAPI Spec (preview)
{
"openapi": "3.0.0",
"info": {
"title": "Handwrytten API",
"version": "3.15.0",
"description": "## About\nSend personalized, handwritten cards to anyone using the Handwrytten API. Choose from a variety of handwriting styles, customize cards with your logo, and automate your card-sending workflow at any scale.\n## Test Mode\nDuring development your account can be switched to test mode on the [Integrations](https://app.handwrytten.com/integrations) page in your dashboard. In test