Haulwide data APILaunching soon

API Documentation

Preview documentation for integrating with the Haulwide API. Details may change before launch.

Estimates clearly labeled
Independent company rankings
Free to compare

Free · No obligation · About a minute

Get a car shipping quote

Authentication

Send your API key in the Authorization header as a bearer token. Keys are issued per organization; keep them on your server, never in browser or mobile code.

Base URL and versioning

Endpoints are versioned in the path, starting with /v1. Breaking changes ship as a new version, with notice before older versions are retired.

Endpoints

Planned Haulwide API endpoints
Method and path	Returns
GET /v1/rates	Estimated price range and transit time for a route and vehicle
GET /v1/routes/{route}/pricing	Distance, per-mile pricing, seasonality and daily price calendar
GET /v1/availability	Carrier availability level by region or lane
POST /v1/dealer/shipments	Creates a dealer shipment request
GET /v1/dealer/shipments/{id}	Status of a dealer shipment

GET /v1/rates
Returns
Estimated price range and transit time for a route and vehicle
GET /v1/routes/{route}/pricing
Returns
Distance, per-mile pricing, seasonality and daily price calendar
GET /v1/availability
Returns
Carrier availability level by region or lane
POST /v1/dealer/shipments
Returns
Creates a dealer shipment request
GET /v1/dealer/shipments/{id}
Returns
Status of a dealer shipment

Errors

API error responses
Status	Meaning
400	Invalid or missing parameters
401	Missing or invalid API key
404	Route or resource not found
429	Rate limit exceeded; retry after the time in the Retry-After header
500	Server error; retry with backoff

400
Meaning
Invalid or missing parameters
401
Meaning
Missing or invalid API key
404
Meaning
Route or resource not found
429
Meaning
Rate limit exceeded; retry after the time in the Retry-After header
500
Meaning
Server error; retry with backoff

Rate limits and data freshness

Rate limits depend on your plan and are returned in response headers. Every pricing response includes an as_of date and an is_estimate flag, which must be shown as an estimate in your product.

Get your API key

API access opens soon. Share your use case to be considered for early access.

Request API Access

Questions?

Our team can help with partnerships and integrations.

Explore api

APIThe Haulwide API for car shipping rate estimates, route pricing, carrier availability and dealer shipments. Documentation, examples and early access.
Car Shipping Rates APICar shipping rate estimates by route, vehicle and transport type through the Haulwide API, with parameters and an example response.
Route Pricing APIRoute-level auto transport pricing through the Haulwide API: per-mile rates, monthly seasonality and daily price calendars for a route.
Carrier Availability APICarrier availability signals by region and lane through the Haulwide API, to help plan pickups and understand car shipping capacity.
Dealer Shipping APICreate dealer shipment requests and follow their status through the Haulwide API, with example requests and status values.