LetterSub

LetterSub is a B2B newsletter platform that enables creators and businesses to manage, publish, and archive their newsletters on dedicated profile pages. The service provides tools to supercharge subscriber growth, enhance audience engagement, and expand brand visibility through modern content distribution features.

LLM mention score

Normalized 0–100 · last 8 weeks

DataForSEO API

Get LLM mention data of any company via DataForSEO API

Get access to the structured data on keyword, brand, and website mentions in LLMs, including metrics like AI search volume, impressions, and mentions count.

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How to get LLM mention data →

// Fetch LetterSub mentions
POST v3/ai_optimization/llm_mentions/search/live
[
    {
        "target": [
            {
                "keyword": "LetterSub",
                "search_scope": ["any"]
            }
        ],
        "platform": "chat_gpt",
        "order_by" : ["ai_search_volume,desc"]
    }
]