Proofsource

Proofsource

Grovio Labs, Inc.
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About

Lettertrace is an open source AI visibility monitoring platform that measures how often Claude, ChatGPT, Gemini, and Google AI Overviews mention and recommend a brand. Users add the topics their buyers ask about, and the platform automatically generates natural prompt variations to monitor how AI assistants actually answer those questions. Every run becomes a datapoint, allowing teams to track visibility, prominence, sentiment, and share of voice per topic and model over time. Competitor benchmarking shows how often rival brands appear, which companies AI models recommend, and how a brand performs against each competitor. Reports turn raw AI answers into the metrics AEO and GEO teams need, including brand visibility, share of voice, sentiment, recommendations, and competitive performance. Scheduled monitoring can run daily or weekly to build actionable trend lines, while multi-model analysis makes it possible to compare results across answer engines side by side.

About

Proofsource is an AI visibility platform. It asks ChatGPT, Perplexity, Claude and Google AI Overviews the questions your buyers actually ask, and shows which questions name your brand, which competitors get named instead, which sources the answers cite, and exactly what to fix. Every number links back to the real AI answers. When you ship a fix, Proofsource re-asks the same questions and shows whether AI now names you. It also works inside ChatGPT and Claude, and in any MCP client. Marketing teams can monitor visibility, citations and AI-referred visits, compare prompt results over time, and review content recommendations before publishing. It connects with Google Search Console, Google Analytics 4 and Cloudflare, sends alerts to Slack and Microsoft Teams, and supports WordPress publishing. A REST API supports programmatic access. Free trial, no card; paid plans from $9/month per brand.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Marketing and brand teams needing to monitor how AI assistants mention, recommend, and position their brand against competitors over time

Audience

Marketing teams, founders, SEO and content leads, and agencies who want their brand recommended by AI assistants

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

$9/month per brand
Self-serve subscriptions start at $9/month per brand for a small weekly-check setup; costs vary with the number of questions, search engines and check cadence. Daily checking starts at $28/month per brand, with additional question and engine charges. Annual billing offers two months free. Tailored plans start at $64/month; managed services start at $1,000/month. The no-card free trial lasts two days and includes 200 answers.
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Lettertrace
United States
lettertrace.com

Company Information

Grovio Labs, Inc.
Founded: 2026
United States
proofsource.co/

Alternatives

Alternatives

Categories

Categories

Integrations

ChatGPT Supported
Claude Supported
Cloudflare Not Supported
Gemini Supported
Google AI Overviews Supported
Google Analytics Not Supported
Google Search Console Not Supported
Microsoft Teams Not Supported
Model Context Protocol (MCP) Not Supported
Slack Not Supported
WordPress Not Supported

Integrations

ChatGPT Supported
Claude Supported
Cloudflare Supported
Gemini Not Supported
Google AI Overviews Not Supported
Google Analytics Supported
Google Search Console Supported
Microsoft Teams Supported
Model Context Protocol (MCP) Supported
Slack Supported
WordPress Supported
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