About AASHTOWare OpenAPI

The AASHTOWare OpenAPI Member License provides no‑cost access to AASHTO members (e.g., Departments of Transportation (DOTs) that hold current licenses for AASHTOWare products). This license allows member agencies to immediately leverage the AASHTOWare OpenAPI platform to extend, integrate, and modernize their use of AASHTOWare without additional licensing fees.

Included with Product License

• Access is available at no additional license cost to agencies with active AASHTOWare product licenses, AASHTOWare OpenAPI license, upon Developer Portal registration/approval and role provisioning.
• No separate procurement process is required for baseline OpenAPI access.

Comprehensive API Coverage

• Secure, standards‑based access to the full range of AASHTOWare OpenAPI endpoints associated with licensed AASHTOWare products. Endpoint availability and versions vary by product release; see the Catalog and product release notes.
• Data integration across modules, build custom applications, and connect with third‑party systems.

Optional Extended Technical Support

• While the license itself is no‑cost, agencies may purchase additional technical support hours through the AASHTOWare Store.
• Support packages cover advanced integration assistance, troubleshooting, and developer enablement.
• Support hours are available in increments of 4 hours. Any hours not used will expire at the end of the fiscal year. Refer to the Catalog for pricing information.

Catalog‑Driven Transparency

• The AASHTOWare Catalog lists all API features, endpoints, use cases, and versions for agencies.

Secure Access Model

• Member licenses are tied to agency domains and managed through the Developer Portal.
• Authentication and authorization use standard protocols such as OAuth2 and token-based access.
• Access keys (subscription keys) are issued per role via the Developer Portal.

License Benefits for Member Agencies

• Accelerated Digital Transformation: Unlocks the ability to modernize workflows, integrate IoT and cloud services, and build advanced analytics pipelines.
• Cost Efficiency: Eliminates additional licensing costs for OpenAPI access, allowing agencies to focus resources on innovation and integration.
• Future‑Proofing: Ensures agencies can adopt new AASHTOWare OpenAPI features as they are released, with versioned documentation and lifecycle support.
• Collaboration Ready: Supports cross‑agency and partner integrations while maintaining compliance and security.

Learn more about the provisions, terms, and benefits in the AASHTOWare Store: AASHTOWare Catalog.

Basic Option

The Basic Option provides entry‑level access for non‑AASHTO public and private‑sector organizations. It includes a baseline allocation of API usage and data transfer, along with access to standard documentation and community resources. Extra technical support hours are available for purchase in the AASHTOWare Store. The specific features and associated annual fee for the Basic Option are described in the AASHTOWare Catalog.

Enhanced Option

The Enhanced Option is designed for organizations that require greater throughput and more responsive support. It offers increased API usage limits, higher data transfer allowances, and enhanced support services with quicker response times. This option is well‑suited for organizations scaling their integrations, running more complex workloads, or preparing for later commercial endeavors. Features and associated annual fees are detailed in the AASHTOWare Catalog.

Premium Option

The Premium Option provides the highest level of access and support for non‑member organizations. It includes defined API usage and data transfer allowances, along with premium support services and priority response times. This option is ideal for organizations embedding AASHTOWare OpenAPI into mission‑critical or large‑scale solutions typically associated with commercial and enterprise SaaS or B2B offerings. Features and associated annual fees are fully described in the AASHTOWare Catalog.

The AASHTOWare OpenAPI Technical Support License allows licensees to purchase additional support hours in convenient four hour blocks. Additional blocks can be acquired as required, offering support flexibility to accommodate the size and timeline of your integration projects. Blocks are currently priced per the AASHTOWare Catalog and expire at the end of the fiscal year.

While the AASHTOWare OpenAPI platform is designed to be standards based and developer friendly, its capabilities are broad and nuanced—spanning multiple AASHTOWare products, integration patterns, and security models. For many organizations, obtaining expert guidance accelerates implementation processes, reduces time spent on troubleshooting, and supports the development of robust and sustainable integrations.

By investing in additional support hours, agencies and partners gain direct access to specialists who understand the intricacies of AASHTOWare OpenAPI and its role in mission critical transportation systems. This investment often pays for itself in terms of reduced project risk, faster delivery timelines, and smoother adoption across teams.

Visit the AASHTOWare Store to review available support packages and purchase additional hours.

Begin your journey with AASHTOWare OpenAPI. This guide walks you through the essential steps from account creation to making your first API call.

• Setting up your Developer Portal account
• Understanding authentication and authorization
• Making your first API request
• Best practices for development and testing

In-depth documentation covering specific AASHTOWare products and integration scenarios.

• AASHTOWare Bridge Management (BrM) Guide
• AASHTOWare Asset Management System (AMS) Guide
• Authentication and Security Standards
• API Standards and Best Practices

Step-by-step instructions for specific integration patterns and common tasks.

• Connecting External Systems
• Implementing OAuth2 Authentication
• Data Synchronization Patterns
• Error Handling and Retry Logic

Code Recipes provide direction and configuration, settings and writing code to achieve a particular objective.

• HaulHub Integration (e-Ticketing recipe)
• US Census Integration (data enrichment recipe)