How to Create Multilanguage Emails with Claude
Translate email campaigns with Claude and ToolRouter. Multilingual email marketing at scale.
Tool
Claude integrates translation into a terminal workflow where you can handle localization alongside development tasks. Translate strings iteratively, discuss the nuances of specific phrases that resist direct translation, and batch-process entire locale files without leaving your session. The conversational depth is particularly useful when working with marketing copy or UI text where cultural context matters -- Claude can explain why a specific phrasing works better in the target language and suggest alternatives when a direct translation would lose impact.
Connect ToolRouter to Claude
1Go to Settings → Connectors → Add custom connector
2Enter the details below and click Add
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Done — works on Claude chat, desktop, and mobile
Steps
Once connected (see setup above), use the Translate tool:
- Ask Claude: "Translate this email template into Spanish, French, and German using the translate tool"
- Claude translates subject line, preview text, body, and CTA separately for optimal results
- Ask: "Adjust the subject lines to maximize open rates in each language"
- Claude outputs translation-ready content for your email platform
Example Prompt
Try this with Claude using the Translate tool
Translate this welcome email series (3 emails) into Spanish, French, and German. Optimize subject lines for each language and keep the CTA buttons action-oriented.
Tips
- Translate subject lines separately -- they need to work within character limits
- Ask Claude to consider cultural email conventions (formality, greeting styles)
- Use detect_language on subscriber data to identify which languages to prioritize