Waystar API

Overview

Waystar is one of the largest revenue cycle management and clearinghouse platforms in the United States, formed through the combination of Navicure and ZirMed and taken public in 2024. The platform processes claims, eligibility verifications, prior authorization submissions, and remittance advice for hospitals, large physician groups, and health systems across the country. Its position in the RCM stack means that a healthtech company targeting mid-to-large provider organizations will encounter Waystar as a required integration at a significant portion of its customer base.

The API access barrier is a formal partner enrollment tied to a clearinghouse relationship. Waystar does not offer a self-serve developer account or a sandbox outside the partner agreement. A team building a claims reconciliation tool, an eligibility automation product, or a remittance analytics platform must complete the partner program before receiving production credentials. The enrollment requires demonstrating a validated use case and satisfying Waystar's clearinghouse relationship requirements, a process that operates on timelines measured in months rather than weeks. For a healthtech company trying to ship before a health system customer goes live, this is a hard blocker.

Integuru generates a production-ready HTTP API for Waystar using direct HTTP requests against the same endpoints the Waystar web application sends during normal operation. Claims submission, eligibility verification, prior authorization tracking, remittance retrieval, and patient balance data are all reachable through Integuru's API without a partner enrollment dependency. The Production plan's 24/7 on-call maintenance team handles session management, re-authentication, and endpoint changes before they affect your production calls. Integuru can be deployed in HIPAA-compliant environments; discuss your compliance requirements when you chat with us.

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Why Teams Need This Integration

Waystar's clearinghouse footprint in the hospital and large-group market means that adding it to a supported platform list is not discretionary for most RCM-adjacent products. The partner enrollment process means it is also not quick.

Claims automation and billing platforms. RCM software vendors and medical billing companies that support large physician groups and health systems need programmatic access to claims submission and status across a high volume of encounters. submit_claim, get_claim_status, and list_claims give billing platforms a live API layer for the full claims lifecycle rather than batch file transfers or manual portal checks. For a billing platform already integrated with other clearinghouses, the Waystar partner program is the only remaining blocker before those customers can be served programmatically.

Eligibility verification and patient access tools. Patient access platforms, scheduling tools, and front-desk automation products need real-time eligibility data before the patient arrives. check_eligibility and get_eligibility_response surface the 270/271 transaction pair as direct API calls, returning coverage details, deductible balances, and copay amounts without a batch eligibility file workflow. For tools that serve practices connected to Waystar's payer network, real-time eligibility is the core product feature.

Remittance reconciliation and payment posting tools. Revenue cycle analytics platforms and payment automation tools need the 835 remittance data to close the revenue loop after adjudication. get_remittance_advice and list_payments retrieve remittance batches and payment records with adjustment codes, denial reasons, and deposit data. For a revenue integrity platform trying to automate payment posting across multiple clearinghouses, Waystar's remittance data is a required input.

Prior authorization tracking for provider organizations. Health systems and large physician groups managing high PA volumes need programmatic tracking of authorization status across payers. submit_prior_auth and get_prior_auth_status expose the PA workflow as API calls, giving care management and utilization review tools the status updates they need without requiring staff to log into the Waystar portal to check each authorization manually.

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RCM Workflows This Integration Covers

The ten planned actions span the core revenue cycle loop that Waystar manages between providers and payers:

• Claims management: submit_claim sends 837P and 837I transactions to the designated payer through Waystar's clearinghouse. get_claim_status retrieves adjudication status and rejection codes. list_claims returns paginated claim records filtered by date, payer, and provider for RCM platforms and billing analytics tools.
• Eligibility verification: check_eligibility submits a real-time 270 inquiry for a patient against a specified payer. get_eligibility_response returns the 271 response with coverage details, deductible balances, and copay amounts.
• Prior authorization: submit_prior_auth initiates a PA request for a procedure or service. get_prior_auth_status returns the current authorization status including approval, denial, or pend reason from the payer.
• Remittance and payments: get_remittance_advice retrieves 835 remittance files with payment amounts, adjustment codes, and denial reasons. list_payments surfaces electronic remittance payments with deposit dates and payment totals.
• Patient financial data: get_patient_balance retrieves the outstanding patient responsibility after payer adjudication and remittance posting, the data that patient payment collection tools and financial counseling platforms need.

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Adjacent Integrations

Integuru already covers the healthcare billing vertical in production across multiple platforms that share Waystar's customer base. The Kareo integration guide covers the clinical and billing workflows for independent practices on Tebra, with the live Tebra scheduling integration providing four production-ready actions. The AdvancedMD integration guide addresses the partner enrollment barrier for practices on that platform, with eleven planned actions spanning patient records, claims, and insurance data. The DrChrono integration provides 4 live actions in production including patient creation, patient listing, medication records, and allergy data.