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    Compare Two Runs — GET /api/v1/runs/compare

    Compare Two Runs

    Compare two test runs and return per-test + aggregate deltas.

    Endpoint: GET /api/v1/runs/compare

    Authentication: Send a signed-in user’s access token in Authorization: Bearer <access token>, or an API key in X-API-Key: <API key>.

    NameInRequiredTypeDefaultDescription
    leftqueryyesstring (uuid)
    rightqueryyesstring (uuid)
    suite_namequerynostring or nullOptional suite scope; matched case-insensitively
    include_ai_reportquerynobooleantrueAttach cached or generated AI comparison report
    X-API-Keyheadernostring or nullAPI key, as an alternative to the access token (see Authentication).

    No request body.

    StatusMeaningBody
    200Successful ResponseRunCompareResponse (application/json)
    422Validation ErrorHTTPValidationError (application/json)

    Errors this endpoint returns, read from its source code:

    • 400, with the message “left and right must be different run ids”
    • 404, with messages such as “Left run not found”, “Right run not found”

    It can also return 401 if your credential is missing or expired, 403 if your credential does not allow this request, and 404 if the item does not exist or you cannot see it. Your role, your project membership and the key’s scope decide what a credential allows. See Errors and retries.