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Livecheck Confirm
x402
Livecheck Confirm is a paid API for AI agents from livecheck.fly.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).
Independently verifies that a lead/contact form submission succeeded by fetching the thank-you or result page and returning a confirmed/failed/unknown verdict with evidence
Price / call$0.1
Success—
StatusUnknown
How this service works
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.
Output
A JSON object containing the verdict (confirmed, failed, or unknown), the effect type and ID (e.g. confirmation/reference/ticket number), a list of evidence signals (e.g. cookieless_fetch, confirmation_id, level_2), evidence strength level (integer), whether evidence is independent, the fetched URL and canonical URL, HTTP status, fetch timestamp, and a unique evidence_id for audit purposes.
Example use cases
Lead submission verification before next action
“I just submitted a lead form on behalf of a prospect and landed on https://crm-vendor.com/thank-you?ref=TKT-9921 — can you independently confirm the lead actually went through and give me the reference ID before I trigger the follow-up email sequence?”
Agent self-check after automated form fill
“My agent just filled out and submitted a B2B contact form and the result page is https://partner.acme.com/contact/success?id=LDX8842 — verify independently that the submission was confirmed, not just that the page loaded.”
Quality gate before paying for a lead
“Before I pay out for this lead, can you check https://leadgen-service.com/submitted?token=ZX99 and confirm there's a real confirmation or ticket ID on that page proving the lead was actually received?”
Technical details
Endpoint
POSThttps://livecheck.fly.dev/v1/confirmWhen to prefer
Use this endpoint when an AI agent has just submitted a lead or contact form and needs independent, cookieless verification that the submission succeeded before taking a costly or irreversible next step (e.g. triggering a payment, sending a follow-up, or logging a conversion). Prefer this over self-grading (checking your own session/cookie-based result) because the actor and verifier are separate. Do not use this for general URL liveness checks (use /v1/verify instead), payment settlement confirmation, or classifying thank-you page content without a specific lead_submit intent.
Side effects
- Page returns HTTP non-200 status — verdict likely failed or unknown
- Thank-you page has no reference/confirmation ID — evidence_strength stays below Level 2, verdict may be unknown rather than confirmed
- Page requires cookies or session state from original submission — cookieless fetch cannot access content, returns unknown
- URL is a URL-encoded redirect or short link that does not resolve — returns failed
- Intent other than lead_submit is provided — request rejected, only lead_submit is accepted in v0
- Network timeout or DNS failure fetching the provided URL — returns failed or unknown
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Absolute http(s) URL. lead_submit: thank-you or result page. listing_published: specific job, product, or eBay item URL. |
| claim | object | Optional. Not required. lead_submit ignores claim. listing_published: title/sku/id may match or veto; not required for L2. |
| intent | string | Payable on POST /v1/confirm: lead_submit ($0.10), listing_published ($0.10). listing_published claim.title/sku/id optional. order_placed uses POST /v1/confirm/order. |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "cfm_01J8Z0K3N4P5Q6R7S8T9V0WXYZ",
"url": "https://example.com/thank-you?ref=ABC123",
"effect": {
"id": "ABC123",
"type": "lead_submit"
},
"receipt": {
"hash": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"verify_url": "https://livecheck.fly.dev/v1/receipt/cfm_01J8Z0K3N4P5Q6R7S8T9V0WXYZ"
},
"signals": [
"cookieless_fetch",
"confirmation_id",
"level_2"
],
"verdict": "confirmed",
"price_usd": 0.1,
"confidence": 0.92,
"fetched_at": "2026-09-06T17:00:00Z",
"evidence_id": "ev_01example",
"http_status": 200,
"canonical_url": "https://example.com/thank-you?ref=ABC123",
"evidence_level": 2,
"evidence_strength": 2,
"independent_signals": 1,
"independent_evidence": true
}
}Tags
x402
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