{"slug":"medien-halowerk-com-v1-speed-change-764e838e","name":"medien.halowerk.com/v1/speed-change","summary":"Takes an audio or video file and changes its tempo by a factor from 0.5 (half speed) to 2.0 (double speed) while keeping the pitch, using the Rubber Band time-stretching library through ffmpeg — good for faster listening, language learning at reduced speed, or fitting a voice-over into a slot. The new running time is measured and returned. All timestamps of the original scale by 1/factor. Runs locally with ffmpeg; nothing leaves this machine and nothing is stored.","status":"live","headings":[{"slug":"education","title":"Education & learning"},{"slug":"video-audio","title":"Video, audio & speech"}],"indexable":true,"listed_since":"2026-10-30T18:50:16.933262Z","sources":[{"source":"x402_bazaar","external_id":"https://medien.halowerk.com/v1/speed-change","owner_address":"0x2880edfff13100677bf97a3cbdf3bc34771c4e5e","seen_at":"2026-11-14T10:31:41.024483Z","removed_at":null}],"endpoints":[{"url":"https://medien.halowerk.com/v1/speed-change","host":"medien.halowerk.com","protocol":"x402","state":"live","last_probe_at":"2026-11-14T20:54:13.484695Z","last_ok_at":"2026-11-14T20:54:13.484695Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"medien-halowerk-com-0df1eebb","name":"medien.halowerk.com"}],"payment_options":[{"endpoint_url":"https://medien.halowerk.com/v1/speed-change","network":"eip155:8453","scheme":"exact","rail":"exact","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","coin":"USDC","asset_label":"USD Coin","amount":"3000","pay_to":"0x2880edfff13100677bf97a3cbdf3bc34771c4e5e","observed_at":"2026-11-14T20:54:13.484695Z"}],"usage":{"source":"x402_bazaar","unique_payers_30d":1,"paid_calls_30d":1,"last_paid_at":"2026-10-30T13:54:21.206Z","reported_at":"2026-11-14T10:31:41.024483Z"},"assessment":{"method":"2026.11.4","checks":[{"id":"answers","state":"pass","reason":"Answered a check 4 hours ago."},{"id":"owner","state":"fail","reason":"No one has proven control of its domain or of the wallet it is paid at."},{"id":"track_record","state":"fail","reason":"Listed for 14 days; 30 are needed."},{"id":"real_customers","state":"fail","reason":"1 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed."},{"id":"clean_scan","state":"not_applicable","reason":"Not an MCP server."}],"passed":1,"applicable":4,"contradicted":false,"computed_at":"2026-11-14T00:32:59.566590Z"},"identity":{"endpoint_domains":["halowerk.com"],"proven_domains":[],"proven_wallets":[],"namesakes":[],"namesake_count":0,"identity_checks":[],"wallet_attestations":[],"human_backings":[]},"replies":[],"customers":null,"scan":null,"notice":"Not affiliated with addrbook — claim or request removal."}