For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
  • Home
    • About the Referral Exchange (RefX)
  • Getting Started
    • API Overview
    • Accessing our APIs
    • Authentication
    • Content Types
    • Request and Response Limits
    • Create and Edit Referrals
    • Print Referrals
    • List Referrals
    • Cancel & Withdraw Referrals
    • Timeline Events
    • Implementation Reference
  • Concepts
    • Referral Lifecycle & Statuses
    • Referral Notes
    • Browser Tab Handling
    • Referral Link
    • NEHR Integration
  • API Reference
    • Changelog
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Getting Started

Request and Response Limits

To ensure consistent performance and security, Referral Exchange imposes standard limits on request payload sizes:

Endpoint TypeMaximum Request SizeNotes
Standard API Endpoints5 MBApplies to most endpoints including referral creation and listing
File Upload Endpoints50 MBApplies to attachments or supporting documents sent via upload endpoints

Requests exceeding these limits will return a 413 Request Entity Too Large error.

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