Vantage research · November 2026 · MCP and agents
What AI cites for “best tools for building ai agents”
ChatGPT cited 10 sites, Gemini cited 8 sites, Perplexity cited 8 sites. No site was cited by all three.
Updated monthlyNext edition 1 December 2026
ChatGPTGeminiPerplexity dots beside a site: the other engines that cite it too
ChatGPT
10 sites · opens with a sentence · has a table · opening 6 words
- langchain.com
- openai.github.io
- crewai.com
- google.github.io
- learn.microsoft.com
- n8n.io
- dify.ai
- flowiseai.com
- langflow.org
- firecrawl.dev
Brands namedLangGraph, OpenAI Agents SDK, CrewAI, Microsoft Agent Framework, Dify, Flowise, Langflow, Pydantic AI
Gemini
8 sites · opens with a sentence · no table · opening 35 words
- sthenostechnologies.com
- dataiku.com
- pub.towardsai.net
- langchain.com
- faros.ai
- marketermilk.com
- anthropic.com
- getstream.io
Brands namedCode-First Frameworks, LangGraph, CrewAI, Mastra, Microsoft Agent Framework, Provider-Specific & Specialized SDKs, OpenAI Agents SDK, LlamaIndex
Perplexity
8 sites · opens with a sentence · has a table · opening 14 words
- hubspot.com
- airtable.com
- stackai.com
- decodo.com
- hostinger.com
- zapier.com
- gumloop.com
- braintrust.dev
Brands namednone
Cited by more than one engine
- langchain.com
Is your site one of them?
Ask your AI agent to run Vantage's analyze_citation_coverage for your domain and “best tools for building ai agents”, on all
three engines, and it will tell you whether you are cited, who is instead, and what changed since your last check.
More MCP and agents questions
Each engine was asked once, in English, as from the United States, on 2026-11-01. Answers change from run to run, so read this as a snapshot. Download the data.