Prior authorization rails for healthcare developers

Check, document, submit, and track prior auth across every payer through one API.
No FHIR, no payer registrations, no portals.

Get accessRead the API docs
graft - api

$ curl https://api.usegraft.dev/v1/check \ --request POST \ --header "Authorization: Bearer grft_sandbox_..." \ --data @check.json

{
  "auth_required": true,
  "method": "api",
  "requirements_available": true,
  "check_id": "chk_9f2ab1"
}

Built for teams shipping scheduling, referrals, RCM, and specialty EHR products.

why now

  1. 01CMS-0057-F requires Medicare Advantage, Medicaid, and exchange payers to expose prior authorization APIs byJanuary 1, 2027.
  2. 02Decisions are now mandated in 72 hours (urgent) and 7 days (standard).
  3. 03Hundreds of payers, hundreds of implementations. Graft is the single integration in front of all of them.

Request and response

submit · 1 / 4

request

POST /v1/submit
{
  "check_id": "chk_9f2ab1",
  "answers": [
    { "link_id": "q1", "value": true },
    { "link_id": "q2", "value": "6-12 weeks" }
  ],
  "attachments": [
    { "filename": "mri-order.pdf", "url": "https://files.example.com/mri-order.pdf" }
  ],
  "urgency": "standard"
}

response

/v1/submit response
{
  "auth_id": "auth_5c11",
  "status": "pended",
  "payer_decision_deadline": "2026-08-09T00:00:00Z"
}

One call for any payer, API or portal.

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