Endpoints
Commerce & ops
Disputes, collections, quotes, and fraud — handled.
Chargeback representment
POST /v1/chargeback$0.15/dispute
Dispute details → a representment narrative, an evidence checklist, the right reason code, and a win-likelihood.
curl https://api.kynth.studio/v1/chargeback \
-H "Authorization: Bearer $KYNTH_API_KEY" \
-H "Content-Type: application/json" \
-d '{"reason":"Cardholder claims product never arrived","transaction":{"amount":129,"currency":"USD","date":"2026-06-12","descriptor":"ACME STORE"},"evidence":["Tracking shows delivered 2026-06-15","Signed at door"],"network":"visa"}'Example response
200 OK
{
"reasonCategory": "product_not_received",
"recommendedAction": "fight",
"narrative": "The cardholder disputes non-receipt; however carrier tracking…",
"evidenceChecklist": [
{
"item": "Carrier tracking with delivery confirmation",
"have": true
}
],
"winLikelihood": 0.82,
"rationale": "Delivery confirmation directly rebuts non-receipt.",
"usage": {
"credits": 15,
"balanceRemaining": 449
}
}Collections sequence
POST /v1/dunning$0.08/sequence
An overdue invoice → a ready-to-send collection sequence, escalating at the right pace and tone for how late it is.
curl https://api.kynth.studio/v1/dunning \
-H "Authorization: Bearer $KYNTH_API_KEY" \
-H "Content-Type: application/json" \
-d '{"invoice":{"number":"INV-10428","amount":1255.5,"dueDate":"2026-06-15","daysOverdue":23},"customer":{"name":"Northwind Coffee","history":"Usually pays on time; second late invoice this year."},"steps":3}'Example response
200 OK
{
"sequence": [
{
"day": 0,
"channel": "email",
"subject": "Invoice INV-10428 — friendly nudge",
"message": "Hi Northwind team…"
},
{
"day": 7,
"channel": "email",
"subject": "Invoice INV-10428 is 30 days past due",
"message": "…"
}
],
"escalationAdvice": "If unpaid after step 3, move to a payment plan offer before collections — history suggests goodwill.",
"usage": {
"credits": 8,
"balanceRemaining": 347
}
}3-way match
POST /v1/po-match$0.10/match
Invoice vs purchase order vs receipt → matched, partial, or mismatched, with every discrepancy flagged and sized.
curl https://api.kynth.studio/v1/po-match \
-H "Authorization: Bearer $KYNTH_API_KEY" \
-H "Content-Type: application/json" \
-d '{"invoice":"{…/v1/invoice output…}","purchaseOrder":"PO-88: 12x Widget A @ $95, ship to Columbus","receipt":"GRN: 12 Widget A received 2026-06-28"}'Example response
200 OK
{
"status": "partial",
"discrepancies": [
{
"field": "unitPrice",
"invoice": "$100.00",
"purchaseOrder": "$95.00",
"receipt": null,
"severity": "high",
"note": "5.3% over PO price — beyond 2% tolerance."
}
],
"recommendation": "hold — quantities match but unit price exceeds the PO; request a corrected invoice.",
"usage": {
"credits": 10,
"balanceRemaining": 337
}
}Quote builder
POST /v1/quote$0.08/quote
A job description plus your rates → an itemized, professional quote with assumptions and scope notes spelled out.
curl https://api.kynth.studio/v1/quote \
-H "Authorization: Bearer $KYNTH_API_KEY" \
-H "Content-Type: application/json" \
-d '{"job":"Repaint a 2-bedroom apartment, walls + trim, tenant moves in Aug 1","rates":"$65/hr labor, materials at cost +10%"}'Example response
200 OK
{
"lineItems": [
{
"description": "Prep + painting labor (2BR walls & trim)",
"quantity": 26,
"unitPrice": 65,
"amount": 1690
},
{
"description": "Paint & materials (est.)",
"quantity": null,
"unitPrice": null,
"amount": 420
}
],
"subtotal": 2110,
"tax": null,
"total": 2110,
"currency": "USD",
"assumptions": [
"Standard 8-ft ceilings",
"Two coats",
"Unit empty during work"
],
"scopeNotes": "Ceilings and cabinet interiors excluded.",
"usage": {
"credits": 8,
"balanceRemaining": 329
}
}Fraud triage
POST /v1/fraud-flag$0.06/check
An order or transaction in context → a risk score, the signals driving it, and the checks worth running before you ship.
curl https://api.kynth.studio/v1/fraud-flag \
-H "Authorization: Bearer $KYNTH_API_KEY" \
-H "Content-Type: application/json" \
-d '{"order":{"amount":950,"email":"qq1998x@tempmail.dev","shippingCity":"Miami","billingCity":"Portland","ip":"203.0.113.9","accountAgeDays":0,"expedited":true}}'Example response
200 OK
{
"riskScore": 0.82,
"riskLevel": "high",
"signals": [
{
"signal": "Disposable email domain",
"weight": "high",
"note": "tempmail.dev is a throwaway provider."
},
{
"signal": "Billing/shipping mismatch + rush shipping",
"weight": "medium",
"note": "Classic resale pattern on a new account."
}
],
"recommendedChecks": [
"3DS challenge",
"Verify phone",
"Match IP geolocation to billing"
],
"recommendation": "review",
"usage": {
"credits": 6,
"balanceRemaining": 323
}
}