AI in the Editor

Generate subject lines, preview text, and image alt-text in multiple languages, and reference existing broadcasts or templates with @mentions.

The Sendry dashboard ships with inline AI assistance for marketing email composition. AI features are powered by Anthropic Claude and run on the Sendry API server; nothing is sent directly from the browser to the model.

What it can do

Generate subject lines — sparkles button next to any Subject input. The model returns up to four alternatives based on your body copy, tone, and target language.
Generate preview text (preheader) — the sparkles button next to the Preview Text input drafts inbox snippets that complement, not echo, the subject.
Generate alt-text — accessible one-line descriptions for any image used in a template.
@mention references — type @ in any AI prompt to pull in an existing broadcast, template, or automation as context. For example, Match the tone of @onboarding-welcome will inject that broadcast's subject and body before the model generates a response.

Where to find it

Location	What you can generate
Templates → New Template	Subject line
Compose	Subject line
Campaign detail → Edit dialog	Subject line, preview text

Each entry point shows a small sparkles icon next to the relevant input. Clicking it opens a compact popover with a prompt textarea, tone/language selectors, and an @ mention picker.

Languages

The popover ships with quick-pick presets for English, Spanish, French, German, Brazilian Portuguese, Japanese, Chinese, and Arabic, but the underlying API accepts any free-form language string (ISO code or name). Pass language: "Welsh" or language: "ko" to the API directly if you need a language not in the dropdown.

API endpoints

All AI endpoints require an API key with full_access scope (the mention-search endpoint allows read_only):

POST /v1/ai/generate-subject
POST /v1/ai/generate-preview
POST /v1/ai/generate-alt-text
GET  /v1/ai/mention-search?q=welcome&types=broadcast,template

Example:

curl https://api.sendry.online/v1/ai/generate-subject \
  -H "Authorization: Bearer $SENDRY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "Announce our Q3 product launch",
    "tone": "professional",
    "language": "en",
    "count": 4
  }'

Response:

{
  "suggestions": [
    "Introducing the Q3 release",
    "What's new in Sendry this quarter",
    "Three new ways to ship faster",
    "Your Q3 update from Sendry"
  ],
  "model": "claude-haiku-4-5-20251001"
}

Configuration

Set ANTHROPIC_API_KEY in the API server environment. When unset, the dashboard buttons still appear but show a clear "AI features are not enabled" error when clicked, and the API endpoints return 503 ai_not_configured. No other configuration is required.

Privacy

Prompts and any body content you include as context are sent to Anthropic for inference.
Sendry does not store AI prompts, responses, or generated suggestions server-side.
@mention resolution runs in the API process — the model only sees the resolved content of resources that belong to your organization.