For dealer IT leads, F&I directors, and developers integrating qardon.com into the lot operations stack. Three integration paths: DMS sync (DealerSocket / Reynolds & Reynolds / CDK Global), CSV bulk-upload, and direct REST API. The full production OpenAPI 3.1 spec is not published yet. This page is a forward-looking technical preview for scoping the integration ahead of time.
Real-time inventory sync. Sub-15-minute latency. Approval webhooks back to your DMS. No double-entry.
Native bidirectional sync. Inventory feed from DealerSocket → qardon.com listings. Approval + settlement events written back to DealerSocket deal jacket.
R&R ERA-IGNITE integration. Inventory + customer data sync via R&R Connect APIs. Compliance with R&R partner certification program.
CDK Drive integration via Fortellis API marketplace. Real-time inventory + deal-jacket sync. Approved CDK Partner Program vendor.
For independent dealers or custom integrations. OAuth 2.0 + HMAC signing. Full inventory, transaction, settlement, and dispute endpoints. Sandbox + production environments.
Dealer dashboard accepts CSV files for one-shot inventory upload or scheduled re-sync. Standard format documented below. No-code option for small lots.
Secondary-tier DMS integrations targeted for v1.1. Customers on these platforms can use the direct REST API or CSV upload at launch and migrate to native sync when v1.1 ships.
Headers required (UTF-8, comma-separated). Sample shown:
# inventory.csv — qardon.com auto-dealer bulk-upload format v1 vin,year,make,model,trim,mileage,asking_price,condition,exterior_color,interior_color,transmission,drivetrain,fuel_type,photo_urls,description,location_id "1HGBH41JXMN109186",2023,"Honda","Civic","EX",18420,23900,"used","Silver","Black","CVT","FWD","Gasoline","https://cdn.example.com/lot/civic-1.jpg|https://cdn.example.com/lot/civic-2.jpg","One owner. Clean Carfax. Service records included.","lot-main" "5YJ3E1EA8MF123456",2024,"Tesla","Model 3","Long Range",8120,39500,"used","White","Black","Auto","AWD","Electric","https://cdn.example.com/lot/m3-1.jpg","Certified pre-owned. Full self-driving included.","lot-main"
Required fields: vin, year, make, model, mileage, asking_price, condition (one of: new, used, certified). Photo URLs are pipe-separated for multiple images. VIN-level deduplication is enforced — same VIN cannot be listed by multiple dealers.
OAuth 2.0 client credentials. HMAC-signed payloads. Idempotency keys on every mutating request. Sandbox + production environments.
| Method | Endpoint | Purpose | Status |
|---|---|---|---|
POST |
/api/v1/dealer/inventory |
Create or update a single vehicle listing. Returns listing ID. | v1 |
POST |
/api/v1/dealer/inventory/bulk |
Bulk-upload inventory (CSV multipart or JSON array). Returns per-row success/failure. | v1 |
GET |
/api/v1/dealer/inventory |
List your active inventory with filters (status, aging, category, asking-price range). | v1 |
DELETE |
/api/v1/dealer/inventory/:vin |
Withdraw a listing. Pending-sale items locked until transaction resolves. | v1 |
POST |
/api/v1/dealer/transactions |
Create a transaction from a buyer application. Triggers creditworthiness check + approval flow. | v1 |
GET |
/api/v1/dealer/transactions/:id |
Retrieve transaction status, approval result, installment schedule, settlement record. | v1 |
GET |
/api/v1/dealer/settlements |
Settlement reports with date-range filters. Per-transaction details + reconciliation. | v1 |
GET |
/api/v1/dealer/aging |
Inventory aging report — vehicles over 60 days flagged with suggested actions. | v1 |
POST |
/api/v1/dealer/tradein/valuation |
Trade-in valuation via KBB + Black Book APIs. Returns instant offer for buyer. | v1 |
GET |
/api/v1/dealer/buyers/prequalified |
List qardon.com pre-qualified buyers (with their consent) browsing your inventory. | v1.1 |
curl -X POST https://api.qardon.com/api/v1/dealer/inventory \ -H "Authorization: Bearer ${QARDON_API_KEY}" \ -H "X-Qardon-Signature: ${HMAC_SIGNATURE}" \ -H "X-Qardon-Idempotency-Key: ${UUID}" \ -H "Content-Type: application/json" \ -d '{ "dealer_id": "dealer_abc123", "vin": "1HGBH41JXMN109186", "year": 2023, "make": "Honda", "model": "Civic", "trim": "EX", "mileage": 18420, "asking_price_cents": 2390000, "condition": "used", "exterior_color": "Silver", "interior_color": "Black", "transmission": "CVT", "drivetrain": "FWD", "fuel_type": "gasoline", "photo_urls": [ "https://cdn.example.com/lot/civic-1.jpg", "https://cdn.example.com/lot/civic-2.jpg" ], "description": "One owner. Clean Carfax.", "term_options_months": [24, 36, 48, 60, 72], "location_id": "lot-main" }'
Response includes the listing ID and the live qardon.com listing URL where buyers can apply. VIN-level dedup enforced — duplicates surfaced to qardon.com partnerships team.
curl -X POST https://api.qardon.com/api/v1/dealer/transactions \ -H "Authorization: Bearer ${QARDON_API_KEY}" \ -H "X-Qardon-Signature: ${HMAC_SIGNATURE}" \ -H "X-Qardon-Idempotency-Key: ${UUID}" \ -H "Content-Type: application/json" \ -d '{ "dealer_id": "dealer_abc123", "listing_id": "lst_civic_xyz", "buyer": { "email": "[email protected]", "first_name": "Jane", "last_name": "Doe", "phone": "+15551234567" }, "selected_term_months": 48, "down_payment_cents": 200000, "trade_in_offer_id": "tradein_def456", "webhook_url": "https://dealership.example/qardon-webhook" }'
Response: hosted checkout URL for the buyer to e-sign + payment-method capture. Final approval webhook fires to your endpoint with installment schedule and settlement date. Settlement initiated T+2 via ACH or wire.
curl -X GET "https://api.qardon.com/api/v1/dealer/settlements?start=2026-05-01&end=2026-05-14" \ -H "Authorization: Bearer ${QARDON_API_KEY}" \ -H "X-Qardon-Signature: ${HMAC_SIGNATURE}"
Returns per-transaction settlement records: transaction ID, asking price, the amount paid to you (the full price: qardon.com deducts nothing), ACH trace number. Reconciliation file downloadable as CSV or JSON.
The documentation is not published yet. When the sandbox opens you will receive: the full OpenAPI 3.1 spec, DMS integration guides per platform, CSV upload templates, sandbox credentials, and a technical support contact during integration. This form records your interest; nothing opens from it today.