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Capslane
Reliable YouTube transcripts through one API
Capslane gives developers a stable API for YouTube transcripts. It returns native captions when available and automatically generates a timestamped transcript when they are missing. Get plain text or structured segments, choose a language, manage API keys, inspect usage, and connect through JavaScript, Python, MCP, or n8n. Start with 50 free requests each month.
Top comment
Hi builders, We built Capslane after making YouTube transcripts a critical part of Gems, our video workflow product. Using an external transcript API was convenient at first, but we needed predictable responses, clear failure states, and a fallback when captions were missing. Capslane is the API we wanted to use ourselves. Send a YouTube URL and it first looks for native captions. If none are available, auto mode starts a transcription job. Both paths return the same structured response, with text, language data, and millisecond timestamps. We also built the parts we kept needing in production: workspace API keys, request logs, usage limits, a shared cache, JavaScript and Python SDKs, an MCP server, and an n8n node. There is a free plan with 50 requests and 15 generated minutes per month, so you can test a real integration without entering a card. Capslane is still an early product, and I would especially value feedback from developers who already depend on YouTube transcripts. What would make it easier for you to trust a transcript API in production: better language handling, more integrations, clearer reliability data, or something else?
About Capslane on Product Hunt
“Reliable YouTube transcripts through one API”
Capslane was submitted on Product Hunt and earned 17 upvotes and 3 comments, placing #14 on the daily leaderboard. Capslane gives developers a stable API for YouTube transcripts. It returns native captions when available and automatically generates a timestamped transcript when they are missing. Get plain text or structured segments, choose a language, manage API keys, inspect usage, and connect through JavaScript, Python, MCP, or n8n. Start with 50 free requests each month.
On the analytics side, Capslane competes within API, Developer Tools and YouTube — topics that collectively have 634.5k followers on Product Hunt. The dashboard above tracks how Capslane performed against the three products that launched closest to it on the same day.
Who hunted Capslane?
Capslane was hunted by Luca Deguin. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Reviews
Capslane has received 3 reviews on Product Hunt with an average rating of 4.50/5. Read all reviews on Product Hunt.
For a complete overview of Capslane including community comment highlights and product details, visit the product overview.