Query parameter is not supported (unsupported_parameter)

HTTP 400Orion /v3 ProblemCode: unsupported_parameter

Type URI: https://orion.stellarchain.io/problems/unsupported_parameter

The request included an unknown query parameter that is not supported by this `/v3` endpoint.

How to Resolve unsupported_parameter

1. Inspect the status (400), code (unsupported_parameter), and detail fields in the JSON response.
2. For 400 validation errors (invalid_*), verify query parameters against the Endpoints Reference or Statistics Catalog (GET /v3/statistics).
3. For 404 errors (*_not_found), confirm the resource exists on Stellar Pubnet.
4. For 409, 429, 503, or 504 transient states, retry with exponential backoff.

Example Response & Client Handling

application/problem+json

{
  "type": "https://orion.stellarchain.io/problems/unsupported_parameter",
  "title": "Query parameter is not supported",
  "status": 400,
  "detail": "Query parameter is not supported",
  "code": "unsupported_parameter"
}

TypeScript / Fetch

const res = await fetch('https://pubnet.stellarchain.io/v3/statistics');
if (!res.ok) {
  const problem = await res.json();
  if (problem.code === 'unsupported_parameter') {
    console.error('Orion /v3 Problem [unsupported_parameter]:', problem.detail);
  }
}

cURL

curl -i -s "https://pubnet.stellarchain.io/v3/statistics" \
  -H "Accept: application/json"

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