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Route Coverage & Limits

The Pricing Insights API supports pricing recommendations for routes within specific geographical coverage areas, and enforces rate limiting to ensure fair usage.

Supported Routes​

  • Continental United States — routes within the contiguous United States (lower 48 states)
  • Accessible Networks — locations with accessible road networks and reliable routing data
  • Established Infrastructure — ZIP codes in areas with established transportation infrastructure

Unsupported Route Types​

The API may return routing errors for the following scenarios.

Cross-Border Routes​

Routes that cross international borders or involve non-mainland U.S. territories are not supported. This includes routes to or from:

  • Canada
  • Mexico
  • Alaska
  • Hawaii
  • Puerto Rico
  • Other U.S. territories

Remote / Rural Areas​

Locations in extremely remote areas or regions with sparse road network data may not be accessible through our routing engine. This typically affects:

  • Very rural ZIP codes
  • Areas with limited transportation infrastructure

Inaccessible Locations​

Areas that are not accessible by standard road transport, such as:

  • Locations requiring ferry access
  • Areas with no connecting roads
  • Regions outside our routing provider's coverage area
caution

When a route cannot be priced, the API returns a NO_ROUTE_AVAILABLE error. Pickup and delivery ZIP codes must also be different — identical ZIP codes return a SAME_ZIP_CODES error. See Response Handling for details.

Rate Limiting​

To ensure fair usage and prevent abuse, the Pricing Insights API enforces rate limiting. Each IP address is allowed up to 50 requests per 10 seconds. If this limit is exceeded, the API returns a 429 Too Many Requests response.

{
  "meta": { "status": "fail" },
  "data": { "message": "Too many requests" }
}

This rate limit helps maintain the performance and availability of the API for all users. If you expect sustained higher throughput, contact [email protected].