| What it does | Open Source Agent Evals & Observability
| Hosted MCP server connecting Google Analytics, Ads and Search Console to Claude and ChatGPT
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| Stage | Established
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| Founded | Not given
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| Based in | DE
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| Pricing model | Freemium
| Freemium
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| Pricing | Not given
| Free: 50 credits to ask in Caybl, Google Analytics in Claude/ChatGPT with unlimited questions, no card required. Pro: $29/month with 500 credits/month, all data sources (Google Ads, Search Console, Bing, Microsoft Advertising, Tag Manager, YouTube, PageSpeed), and unlimited questions in Claude/ChatG
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| Key features | - Hierarchical traces capture every LLM call, tool invocation, and retrieval step
- LLM-as-a-judge, heuristic functions, or human review evaluations
- Prompt management with one-click deployments and rollbacks
- Playground to test prompts on real production inputs and compare models
- Experiments with test cases and side-by-side comparison
- Human annotation and collaborative human-in-the-loop workflows
- Cost and latency monitoring with dashboards and alerts
- REST APIs and Query SDK for data access
- Langfuse Assistant to automate the AI engineering loop
| - Google Analytics connector with standard reports, realtime reports, funnel reports, account/property lookup, custom dimensions and metrics
- Search Console queries, pages and index status tracking
- Bing Webmaster Tools with crawl health, backlinks and keyword research
- Microsoft Advertising campaigns, keywords and performance management
- Tag Manager container audits and version history
- YouTube channel analytics including revenue for monetized channels
- PageSpeed Insights and Core Web Vitals auditing
- One-click disconnect with immediate OAuth revocation
- Built-in assistant powered by Claude with one-click fixes for negative keywords and budgets
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| What makes it different | - MIT licensed open source platform with no data lock-in
- Enterprise scale architecture handling billions of monthly events
- Works with any language and framework with no framework lock-in
- Async by default so tracing never blocks your application
| - No setup required - sign in once with Google, no tokens or credentials to manage
- Ask questions in your own AI (Claude, ChatGPT) with unlimited questions on all plans
- Write access with dry-run preview and approval required before any changes apply
- Data fetched on demand from live APIs, never stored or warehoused
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 80 ▲ +1 (up) since last check | 5 ▲ +1 (up) since last check |
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| Trust Flow (Majestic) | 35 | 0 |
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| Citation Flow (Majestic) | 54 | 27 |
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| Referring domains (Majestic) | 6114 | 29 |
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Caybl.ai