ONE API Platform

One integration. 400+ practice management systems.

Read and write practice data across dental, veterinary and specialty care through one data model, 140+ endpoints and an MCP server for AI agents.

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Trusted by our customers

Why ONE

Retail healthcare runs on hundreds of practice management systems. Developers used to integrate each one. With the ONE API Platform, you integrate once.

ONE data model

Every practice management system structures data differently. Our unified data model returns it all in one consistent format.

ONE set of API endpoints

Write your code once, not once per system. 140+ endpoints work the same way across every connected practice management system.

ONE onboarding flow

Connect practices through one guided onboarding flow, whatever system they run.

Built on the Sikka Platform

Twenty-two years of integrations, in production today.

400+

Practice management systems

47K+

Connected practices

4M+

API calls a day

What you can build

Patient 360

A patient’s demographics, notes, treatment plans and claims in a single request.

Key Performance Indicators

300+ KPIs, from collections to provider production, at practice or provider level.

Payment Writeback

Post payments back to the practice management system automatically.

Explore all 140+ endpoints

Sample request and response from the ONE API docs (trimmed)GET /v4/appointments?limit=1
Request-Key: <your_request_key>

{
  "offset": "0",
  "limit": "1",
  "total_count": "1234",
  "items": [{
    "patient_id": "5383",
    "provider_id": "DMD2",
    "practice_id": "1",
    "date": "2020-09-29T00:00:00",
    "time": "10:30",
    "length": "60",
    "description": "Seat Br-UR",
    "type": "General"
  }]
}

Built for AI agents

Connect any MCP-compatible agent to the ONE API Platform’s MCP server and it can query practice data in plain language. The server handles authentication, endpoint selection and formatting, then returns clean JSON.

Get started with MCP

How it works

user input

“Show me this week’s confirmed appointments”

{ "status": "confirmed", "startdate": "2026-10-19", "enddate": "2026-10-25" }

GET /v4/appointments

{ "summary": "Found 8 confirmed appointments this week.", "data": { "items": [...], "startdate": "2026-10-19", "enddate": "2026-10-25" } }

Security and compliance

SOC 2 audited and HIPAA compliant. Patient data is encrypted in transit and at rest, and every request is authenticated.

Hear from our customers

The Sikka API allows our software platform to conveniently and reliably capture practice data in real-time, which we then leverage to do what we do best – help practices grow. Sikka has allowed us to bring a tremendous amount of value to our customers.

Drew Sparks
Co-Founder & CEO

PatientPop has grown rapidly and has enjoyed the benefit of Sikka platform and APIs in that growth. High availability and high performance of Sikka with coverage across all dental, orthodontist, and chiropractic care has been instrumental for our success. Sikka has a great team and support.

Luke Kervin
Founder & Co-CEO

Recognized

Five-time API World award winner (2017, 2019, 2022, 2024, 2026), most recently Best Innovation in Health API, plus the CloudX 2025 Platform-as-a-Service award.

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