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Search Substack for newsletters / publications matching a topic, keyword, category, language, or author and return matching publications with subscriber-tier signals, multi-currency pricing, recent post samples, and canonical URLs as structured JSON. Read-only.
Search Substack for newsletters / publications matching a topic, keyword, category, language, or author and return matching publications with subscriber-tier signals, multi-currency pricing, recent post samples, and canonical URLs as structured JSON. Read-only. This page documents every listed tool: what it does, how to install it, and the input fields an agent should send.
Search Substack for newsletters / publications matching a topic, keyword, category, language, or author and return matching publications with subscriber-tier signals, multi-currency pricing, recent post samples, and canonical URLs as structured JSON. Read-only.
browse skills add substack.com/search-newsletters-4ceccaInstall browse first, then run the command in a terminal. WebMCP tools run directly on the website and do not need a package install.
Use the search-newsletters tool on substack.com with query: <string>, url: <string>. Return the structured result and cite the source page.query string The thing to search for.url string The URL or page to inspect.