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Lettertrace

Monitor brand mentions and visibility across Claude, ChatGPT, and Gemini

free
Last Updated 9/7/2026

About Lettertrace

Lettertrace measures how often Claude, ChatGPT, and Gemini mention your company. Add topics that buyers may ask about, then view AEO/GEO metrics such as visibility, share of voice, prominence, and sentiment by topic, model, and time. You can also schedule daily or weekly monitoring to create trend lines. The official page says it supports your own Anthropic, OpenAI, and Google keys, which are encrypted at rest and do not leave your infrastructure; the project is MIT-licensed and can be forked and self-hosted.

Best for

AEO/GEO teams

Best use cases

Monitor how often your company is mentioned in AI answers

Track topics based on buyer questions

Compare changes in brand metrics across different models

Run monitoring automatically every day or week

Features

AI Mention Monitoring

Measure how often Claude, ChatGPT, and Gemini mention your company.

Topic and Metric Tracking

Add topics based on buyer questions and view visibility, share of voice, prominence, and sentiment by topic, model, and time.

Scheduled Monitoring

Run automatically every day or week to create actionable trend lines.

Your Own Keys and Self-Hosting

Use your own Anthropic, OpenAI, and Google keys; the official page says keys are encrypted at rest and never leave your infrastructure, and the project is MIT-licensed.

Pros

  • Covers Claude, ChatGPT, and Gemini
  • Supports using your own model keys
  • View multiple metrics by topic, model, and time
  • MIT-licensed and supports self-hosting

Cons

  • Requires your own Anthropic, OpenAI, and Google keys

FAQ

The official page lists Claude, ChatGPT, and Gemini.
The official page says the project is MIT-licensed and can be forked, self-hosted, and used independently.

Tool Information

DeveloperLettertrace
Release Date9/7/2026
Pricingfree