Use quota endpoints to limit how many participants come from each audience segment. This is helpful if you want a balanced, representative sample - but totally optional. Quotas are currently only available for unmoderated studies and surveys that have auto-invite enabled. We currently support only one quota per project, based on demographic categories.

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Quota Categories (v1)

The following demographic fields are supported in v1:
FieldExamples
genderfemale, male, other
age18-20, 21-29, 30-39
ethnicityamericanindianalaskannative, hispaniclatino, blackorafricanamerican
location (Country Code ISO 3166-1 alpha-2)US, GB, BR

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Eligibility Constraints

  • Project targetResearchMethodology must be unmoderatedStudy or survey
  • Auto-invite must be enabled
  • Quotas must be defined before project is published and can’t be edited once the project has been published

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Sample Workflow

  1. Create an unmoderated/survey project with auto-invite enabled via POST /v1/projects.
  2. Define quotas with POST /v1/projects/{projectId}/quota.
  3. Publish project - we will match and invite participants based on your desired quota segments.
  4. Monitor fill progress with GET /v1/projects/{projectId}/quota

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Creating quotas

POST /v1/projects/{projectId}/quota 
{
  "version": "v1",
  "criteria": {
    "category": "gender",
    "segments": [
      {
        "value": "male",
        "percentage": 50
      },
      {
        "value": "female",
        "percentage": 50
      }
    ]
  }
}

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Monitoring quota fill rates

GET /v1/projects/{projectId}/quota 
{
  "id": "68086546545de68c1bc1bc1b",
  "projectId": "68084868666de68c1b4f3412",
  "version": "v1",
  "totalTarget": 10,
  "status": "IN_PROGRESS",
  "criteria": {
    "category": "gender",
    "segments": [
      {
        "value": "male",
        "percentage": 50,
        "id": "1"
      },
      {
        "value": "female",
        "percentage": 50,
        "id": "2"
      }
    ]
  },
  "progress": {
    "1": {
      "currentCount": 2,
      "targetCount": 5
    },
    "2": {
      "currentCount": 1,
      "targetCount": 5
    }
  },
  "createdAt": "2025-05-15T03:44:44.482Z",
  "updatedAt": "2025-05-15T03:44:44.482Z"
}

​
References

Example of how quotas are created via the Respondent Researcher Platform Example of how fill progress is presented in the Respondent Researcher Platform