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The Cold Email endpoint generates a short, persuasive outreach email tailored to any product, campaign, or pitch context you supply. Google’s Gemini 2.5 Flash model acts as a marketing specialist, crafting compelling copy designed to grab attention and drive action.

​
Request

POST /api/utilities/cold-email
Content-Type: application/json
​
userPrompt
string
required
The campaign or product context the cold email should be written around. This can include the product name, target audience, key benefits, call-to-action, or any other relevant details. Richer context produces higher-quality output.

​
Response

A successful request returns HTTP 200 with the following body:
​
coldEmail
string
The AI-generated cold email as a plain-text (or lightly formatted) string, ready to be copied, edited, or sent.
{
  "coldEmail": "Subject: Boost your team's productivity by 40%\n\nHi [Name],\n\nI wanted to reach out because..."
}

​
Error Responses

StatusBodyCause
400{ "error": "Missing cold email context." }userPrompt was absent or empty.
500{ "error": "Failed to generate cold email." }Gemini API call failed or an unexpected server error occurred.
The model is prompted with a marketing specialist persona. Providing specific context — such as the product name, target pain points, and desired call-to-action — significantly improves the relevance and quality of the generated email.
Do not omit userPrompt. An empty or missing field returns 400 before the AI model is ever invoked.

​
Example

Request 
curl -X POST https://your-domain.com/api/utilities/cold-email \
  -H "Content-Type: application/json" \
  -d '{
    "userPrompt": "We are launching TaskFlow, a project management SaaS for remote engineering teams. It reduces meeting overhead by auto-generating standups and progress reports. Target audience: CTOs and engineering managers at 50-200 person startups."
  }'
Response 
{
  "coldEmail": "Subject: Cut your standups in half — introducing TaskFlow\n\nHi [First Name],\n\nRunning a distributed engineering team means too many meetings and not enough building. TaskFlow changes that.\n\nOur platform auto-generates daily standups and progress reports directly from your existing workflow tools — no manual updates, no context-switching.\n\nTeams using TaskFlow report a 40% reduction in sync meetings in their first month.\n\nWould you be open to a 15-minute demo this week? I'd love to show you how it works.\n\nBest,\n[Your Name]"
}

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