SumVid — YouTube Video Summaries

Summarize any YouTube video, fetch its transcript, or poll a channel for new uploads — **no account, no API key**. Payment *is* the auth: each call is paid per-use in USDC on Base via the [x402 protocol](https://www.x402.org/), settled only when the call succeeds. A failed call is never charged. ## Tools | Tool | What it does | Price | |---|---|---| | `summarize_youtube_video` | Claude-generated summary of a video's transcript | $0.02 | | `get_youtube_transcript` | Full transcript text for a video | $0.005 | | `list_new_channel_videos` | New uploads from a channel since a cursor | $0.002 | ## How payment works 1. Call a tool with no payment → you get an x402 `402` challenge (price, network, USDC asset, pay-to address). 2. Sign an EIP-3009 USDC authorization on **Base** and retry. 3. The tool runs; payment settles **only on success** — errors (no captions, bad URL, upstream hiccups) cost nothing. Works with any x402-capable agent or wallet. No configuration needed — there is nothin