GoKawiilNew MCP tool turns PDFs into audiobooks using existing Codex or Claude plans
A Show HN project called PDF TO MP3 lets users convert PDF documents into audiobooks by connecting their Codex or Claude account via an MCP server. Document processing is covered by the user's existing AI subscription, while the actual text-to-speech generation is billed separately through an OpenAI or Google Gemini API key. Users authenticate the MCP server, add their speech API key, then attach a PDF in their chat client and request an audiobook conversion.
GoKawiil's interpretation of the reporting above, not reported fact.
The tool illustrates how MCP (Model Context Protocol) integrations let developers build niche utilities on top of existing AI subscriptions rather than requiring users to pay for a separate service outright. By splitting costs—subscription covers document handling, pay-per-use API key covers speech—the creator may be aiming to minimize its own operating expenses while still offering a seemingly 'free' front-end experience.
- PDF TO MP3 uses MCP to let Codex or Claude subscribers convert PDFs into spoken audio.
- Document processing is included in existing AI subscriptions, but speech generation requires a separate OpenAI or Gemini API key billed per use.
- The setup requires manual configuration: adding an MCP server, authenticating an account, and entering a billing-enabled API key.
Audible-compatible Bluetooth headphones (Sony WH-1000XM5) — Once you've turned your PDFs into audiobooks, a great pair of headphones makes the listening experience shine. The Sony WH-1000XM5's noise cancellation and long battery life are perfect for enjoying your freshly generated audio content anywhere, whether commuting or relaxing at home.”,
See Audible-compatible Bluetooth headphones (Sony WH-1000XM5) on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: pdftomp3.com, 2026-10-13
Published there as: “Show HN: Use your OpenAI subscription to create audiobooks”
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