{"ok":true,"name":"Salt","verb":"human_receipt","human_required":403,"challenge":"POST https://uneedsalt.com/api/salt/challenge","poll":"GET https://uneedsalt.com/api/salt/challenge/{id}","yes":"POST https://uneedsalt.com/api/salt/challenge/{id}/yes","no":"POST https://uneedsalt.com/api/salt/challenge/{id}/no","verify":"POST https://uneedsalt.com/api/salt/verify","tap":"https://uneedsalt.com/?c={id}","js":"https://uneedsalt.com/js/salt.js","css":"https://uneedsalt.com/css/salt.css","docs":"https://uneedsalt.com/salt.txt","mcp":"POST https://uneedsalt.com/api/salt/mcp","host":"https://uneedsalt.com/host","packs":[{"id":"start","name":"Start","usd":900,"yes":1000,"blurb":"$9 · 1,000 live yeses"},{"id":"desk","name":"Desk","usd":2900,"yes":4000,"blurb":"$29 · 4,000 live yeses"},{"id":"floor","name":"Floor","usd":9900,"yes":20000,"blurb":"$99 · 20,000 live yeses"}],"machine":"POST https://uneedsalt.com/api/salt/live","machine_usd":"0.50","auth":"Authorization: Bearer sk_live_…","ttl_ms":90000,"note":"Salt is its own product on uneedsalt.com. Agents act without asking; hosts eat the bill. A live receipt is a signed yes they cannot fake. Fail closed. Demo receipts are not live. Human never pays. Host prepaid yeses at /host. Agents pay 0.50 USD per live knock at POST /api/salt/live (MPP)."}