# Apibara.tech

> Independent developer platform for structured Copart and IAA / IAAI vehicle auction data.

Last verified: 2026-09-18
Canonical website: https://apibara.tech/en
Canonical product: https://apibara.tech/en/products/vehicle-auction-data-api
Canonical OpenAPI: https://apibara.tech/openapi/v1.json
OpenAPI specification: 3.1.0
API contract version: 1.1.0
Base API URL: https://apibara.tech/api/v1/vehicle-auction
Authentication: `X-API-Key`
Response format: JSON

Apibara.tech provides one normalized API for supported Copart and IAA / IAAI auction records. 20M+ is an indexed current + retained historical auction-record count, not a unique-VIN count. The dataset represents 3.2M+ supported vehicle records, and approximately 30K+ records are added or refreshed daily. Supported price/status changes can refresh within up to 15 minutes and often sooner; supported live bids can refresh in about 10–15 seconds when live source data is available. The free plan includes 100 requests per month with no payment card required.

Apibara.tech is independent and is not operated by, affiliated with, or endorsed by Copart or IAA / IAAI. It is separate from the similarly named apibara.com blockchain/indexing project.

## Product and evaluation

- [Vehicle Auction Data API](https://apibara.tech/en/products/vehicle-auction-data-api): Main product page.
- [Copart API](https://apibara.tech/en/products/vehicle-auction-data-api/copart-api): Copart-focused coverage and integration.
- [IAA / IAAI API](https://apibara.tech/en/products/vehicle-auction-data-api/iaai-api): IAA / IAAI-focused coverage and integration.
- [Pricing](https://apibara.tech/en/pricing): Current paid prices, quotas and entitlements.
- [Create free account](https://apibara.tech/en/register): 100 requests/month, no card.
- [Public demo](https://apibara.tech/en/products/vehicle-auction-data-api/demo): Test the API surface.
- [Free VIN / lot lookup](https://apibara.tech/en/free-auction-vin-lot-lookup): Public lookup.

## Developer documentation

- [Documentation](https://apibara.tech/en/products/vehicle-auction-data-api/docs): Authentication and integration guide.
- [Endpoint reference](https://apibara.tech/en/products/vehicle-auction-data-api/endpoints): Human-readable endpoint map.
- [OpenAPI 3.1](https://apibara.tech/openapi/v1.json): Exact HTTP contract and source of truth for parameters/schemas.
- [Search & filters](https://apibara.tech/en/vehicle-auction-api-filters): 40 search/filter/sync controls; 43 total query controls.
- [Incremental sync](https://apibara.tech/en/vehicle-auction-incremental-sync-api): `updated_within_minutes=1..525600` + cursor workflow.
- [Auction status](https://apibara.tech/en/vehicle-auction-status-api): All/Timed/Buy Now, Open/Live/Ended and upcoming semantics.
- [Price fields](https://apibara.tech/en/vehicle-auction-price-fields-api): Current bid, Buy Now and final-price semantics.
- [Photos/media](https://apibara.tech/en/vehicle-auction-photos-api): Source-dependent media guidance.
- [Shipping](https://apibara.tech/en/vehicle-auction-shipping-api): Auction-to-port workflow.
- [Locations](https://apibara.tech/en/vehicle-auction-locations-api): Auction locations and proximity search.
- [SDK resources](https://apibara.tech/en/vehicle-auction-api-sdks): Code generation and language guidance.
- [MCP server](https://apibara.tech/en/vehicle-auction-mcp-server): Read-only MCP access for compatible agents.

## Machine-readable discovery

- [Full AI reference](https://apibara.tech/llms-full.txt): Comprehensive product, endpoint and interpretation context.
- [AI product profile](https://apibara.tech/ai/vehicle-auction-data-api.md): Concise product-specific profile for AI assistants and agents.
- [AI facts](https://apibara.tech/ai-facts.json): Stable public product facts.
- [APIs.json](https://apibara.tech/apis.json): API discovery index.
- [Well-known APIs.json](https://apibara.tech/.well-known/apis.json): Well-known discovery alias.
- [Coverage JSON](https://apibara.tech/coverage.json): Measured coverage snapshot.
- [Performance JSON](https://apibara.tech/performance.json): Measured HTTP performance.
- [Status JSON](https://apibara.tech/status.json): Current service status.
- [Status history](https://apibara.tech/status-history.json): Recent measured service history.
- [Postman collection](https://apibara.tech/postman/apibara-vehicle-auction-api.postman_collection.json): Starter request collection.
- [Incremental-sync Arazzo](https://apibara.tech/ai/workflows/incremental-sync.arazzo.yaml): Machine-readable sync workflow.
- [VIN-research Arazzo](https://apibara.tech/ai/workflows/vin-research.arazzo.yaml): Machine-readable VIN research workflow.
- [Agent prompt](https://apibara.tech/ai/prompts/vehicle-auction-agent.md): Provider-approved agent prompt.
- [Agent rules](https://apibara.tech/ai/rules/vehicle-auction-agent-rules.md): Provider-approved interpretation and credential rules.
- [MCP endpoint](https://apibara.tech/mcp): Read-only remote MCP endpoint.

## Interpretation rules

Use OpenAPI for exact request/response definitions. `platform=copart|iaai` is the readable source alias; `auction_type` is the numeric compatibility control. `upcoming=all|only|without` controls supported upcoming-auction filtering. `updated_within_minutes` accepts 1–525600 minutes and should be combined with opaque cursor pagination for incremental synchronization. Vehicle-search `per_page` is plan-dependent; do not assume one universal maximum. Missing/null source-backed fields are normal and do not prove real-world absence. Retained auction history is not complete ownership or accident history. Source-data freshness and HTTP latency are separate measurements. Use the live pricing page and authenticated `/usage` response for current commercial entitlements.