Livecheck

Endpoints (18 live)

• POST /v1/verify/listing — Before you scrape a job posting, Shopify or HTML product page, or eBay item, POST the specific URL you already have and Livecheck returns live, closed, or unknown plus title and signals (apply form, in-stock, sold-out, 404); not a search engine. (0.01 USDC on Base)
• POST /v1/confirm/order — Livecheck Confirm order_placed - independent side-effect verification (actor != verifier). POST /v1/confirm/order with {url, intent: order_placed} (+ optional claim). Returns confirmed|failed|unknown; thank-you fluff alone never confirmed - durable order/ref/ticket id required. Fixed $0.25 USDC. lead_submit and listing_published stay on POST /v1/confirm ($0.10). Signed receipts + GET /stats. Not Trust Oracle / L3. (0.25 USDC on Base)
• POST /v1/verify/job — Before you scrape a job posting, Shopify or HTML product page, or eBay item, POST the specific URL you already have and Livecheck returns live, closed, or unknown plus title and signals (apply form, in-stock, sold-out, 404); not a search engine. (0.01 USDC on Base)
• POST /v1/confirm — Livecheck Confirm — use after your agent submits a lead/contact form (intent=lead_submit): POST {url, intent} where url is the thank-you or result page. Returns confirmed|failed|unknown with Level-2+ evidence (confirmation/ref/ticket id required for confirmed). Independent cookieless verifier — actor ≠ verifier — so you do not grade your own homework before the next paid or irreversible step. Not URL/stock liveness (use /v1/verify), not payment/tx settlement, not a thank-you-page classifier. (0.1 USDC on Base)
• POST /v1/verify — Before you scrape a job posting, Shopify or HTML product page, or eBay item, POST the specific URL you already have and Livecheck returns live, closed, or unknown plus title and signals (apply form, in-stock, sold-out, 404); not a search engine. (0.01 USDC on Base)
• POST /v1/watch/1/chain/topup — Livecheck Sentinel chain top-up - add $0.50 USDC chain balance to an existing watcher. POST /v1/watch/{id}/chain/topup. Requires X-Livecheck-Owner-Token plus payment. Funds on_change.run=verify (internal Verify at $0.01) and on_change.run=confirm (internal Confirm at $0.10 / $0.25). No public /v1/verify or /v1/confirm. chain_budget_usd is a spend cap, not funding. Fixed $0.50 USDC (500000 atomic). Not watch create ($2.50) and not a new Confirm price. (0.5 USDC on Base)
• POST /v1/check — Livecheck Sentinel check - one-shot URL condition check. POST /v1/check with {target, condition, baseline_hash?}. Detectors: status_change, keyword, text_diff, numeric_threshold. Returns current observation + fired when comparable. Fixed $0.02 USDC. No watcher created. Not /v1/verify ($0.01) and not Confirm. (0.02 USDC on Base)
• GET /v1/verify/listing (free)
• GET /v1/verify/job (free)
• POST /v1/watch — Livecheck Sentinel watch - 30-day URL condition watcher. POST /v1/watch with {target, condition, callback, interval_s}. Detectors: status_change, keyword (same as /v1/check). HMAC-signed callbacks. Returns wtc_ id, owner_token (once), baseline, and a signed receipt. Fixed $2.50 USDC (2500000 atomic). GET/DELETE /v1/watch/{id} and GET /v1/watch/{id}/events with X-Livecheck-Owner-Token. No Playwright. Not /v1/check ($0.02) and not Confirm. (2.5 USDC on Base)
• POST /v1/watch/renew — Livecheck watch renew - extend an active 30-day watcher prepaid window. POST /v1/watch/renew with {id}. Requires X-Livecheck-Owner-Token plus payment. Same $2.50 USDC as POST /v1/watch create (2500000 atomic). One accept. Adds one prepaid term to expires_at and checks_remaining. Same watcher, not a second product. No new detector or event. Stopped or expired cannot renew. owner_token is not returned again. Confirm continuity only. Not /v1/watch/fast. (2.5 USDC on Base)
• GET /v1/watch/renew (free)
• GET /v1/watch/%7Bid%7D/chain/topup (free)
• GET /v1/watch (free)
• GET /v1/check (free)
• GET /v1/confirm/order (free)
• GET /v1/confirm (free)
• GET /v1/verify (free)