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Seltz provides a Web Knowledge API that supplies real-time web data for AI applications.
Seltz provides a Web Knowledge API that selects, filters, and ranks current web content for AI systems, including language models, retrieval-augmented generation pipelines, and autonomous agents. Founded in 2025 in San Francisco, the company raised USD 12.5 million in seed funding in June 2026, co-led by Speedinvest and B Capital, with participation from 2100 Ventures, arc investors, Future Back Ventures, Futurepresent, Italian Founders Fund, Mango Capital, United Ventures, and Vento Ventures.
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