curl "https://api.haau3.com/v1/sandbox/fhir/r4/metadata" \
  -H "Authorization: Bearer $HAAU3_API_KEY"

import { Haau3 } from "@haau3/sdk";

const haau3 = new Haau3(); // reads HAAU3_API_KEY
const capabilityStatement = await haau3.sandboxMetadata();
console.log(capabilityStatement.resourceType);

from haau3 import Haau3

client = Haau3()  # reads HAAU3_API_KEY
capability_statement = client.sandbox_metadata()
print(capability_statement["resourceType"])

package main

import (
	"context"
	"fmt"
	"log"

	"github.com/haau3/haau3-go"
)

func main() {
	ctx := context.Background()
	client, err := haau3.NewClient() // reads HAAU3_API_KEY
	if err != nil {
		log.Fatal(err)
	}
	capabilityStatement, err := client.SandboxMetadata(ctx)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(capabilityStatement.ResourceType())
}

{
  "resourceType": "CapabilityStatement",
  "status": "active",
  "date": "2026-10-27",
  "publisher": "haau3",
  "kind": "instance",
  "instantiates": [
    "http://hl7.org/fhir/us/carin-rtpbc/CapabilityStatement/rtpbc-responder|2.0.0-ballot"
  ],
  "software": {
    "name": "haau3 Sandbox"
  },
  "implementation": {
    "description": "haau3's Sandbox: the platform FHIR base's non-production twin, the same paths answered with synthetic data. It serves the CARIN Consumer Real-Time Pharmacy Benefit Check (STU2 ballot), answered by Example Health Plan, haau3's test insurer, for its test members only, each outcome fixed by the medication. Send test members only, never a real person.",
    "url": "https://api.haau3.com/v1/sandbox/fhir/r4"
  },
  "fhirVersion": "4.0.1",
  "format": [
    "application/fhir+json",
    "json"
  ],
  "rest": [
    {
      "mode": "server",
      "documentation": "haau3's Sandbox: the platform FHIR base's non-production twin, the same paths answered with synthetic data. It serves the CARIN Consumer Real-Time Pharmacy Benefit Check (STU2 ballot), answered by Example Health Plan, haau3's test insurer, for its test members only, each outcome fixed by the medication. Send test members only, never a real person.",
      "operation": [
        {
          "name": "process-message",
          "definition": "http://hl7.org/fhir/OperationDefinition/MessageHeader-process-message",
          "documentation": "A member's pharmacy benefit check, answered by a test insurer: a CARIN request message in, a CARIN response message out. Test members only; any other member gets the error no-test-member."
        }
      ]
    }
  ],
  "messaging": [
    {
      "documentation": "haau3's Sandbox: the platform FHIR base's non-production twin, the same paths answered with synthetic data. It serves the CARIN Consumer Real-Time Pharmacy Benefit Check (STU2 ballot), answered by Example Health Plan, haau3's test insurer, for its test members only, each outcome fixed by the medication. Send test members only, never a real person.",
      "supportedMessage": [
        {
          "mode": "receiver",
          "definition": "http://hl7.org/fhir/us/carin-rtpbc/MessageDefinition/rtpbc-request"
        }
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "error",
      "code": "forbidden",
      "details": {
        "coding": [
          {
            "system": "https://haau3.com/fhir/CodeSystem/api-error",
            "code": "live-key-in-sandbox",
            "display": "Live key in the Sandbox"
          }
        ],
        "text": "This is a live key, which does not work in the Sandbox. Send this request with a test key; create one in the dashboard. See https://docs.haau3.com/authentication#test-and-live-keys"
      }
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "<string>",
      "details": {
        "text": "<string>"
      },
      "diagnostics": "<string>",
      "expression": [
        "<string>"
      ]
    }
  ]
}