---
title: "Gets diagnostic stats for an experiment."
method: GET
path: "/creator-configs-public-api/v1/experimentation/universes/{universeId}/experiments/{experimentId}/stats"
tags: ["Experiments"]
---

# Gets diagnostic stats for an experiment.

`GET /creator-configs-public-api/v1/experimentation/universes/{universeId}/experiments/{experimentId}/stats`

## Path parameters

- `universeId` integer, required
- `experimentId` string, required

## Response `200`

OK

- GetExperimentStatsResponse — Response body for `GET /v1/experimentation/universes/{universeId}/experiments/{experimentId}/stats`.
  - `operation` ExperimentStatsOperation — Async operation for fetching experiment stats. When Done is true exactly one of Error or ExperimentStats is set; when false, neither is.
    - `experimentId` integer — Experiment ID the stats are for.
    - `lastModifiedTime` string, nullable — UTC time the operation was last modified.
    - `done` boolean — True once the stats fetch terminates (success or failure).
    - `error` ExperimentApiError — Application-layer error emitted on a failed experiment operation.
      - `errorType` 'EXPERIMENT_API_ERROR_TYPE_INVALID_VARIANT_CONFIGURATION' | 'EXPERIMENT_API_ERROR_TYPE_INVALID_VARIANT_LABEL' | 'EXPERIMENT_API_ERROR_TYPE_MUST_HAVE_EXACTLY_ONE_BASELINE_VARIANT' | 'EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_OVERLAPPING_RUNTIME' | 'EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_INVALID_SCORING_CONFIGURATIONS' | 'EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_UNEXPECTED_PRODUCT_TYPE' | 'EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_EMPTY_CONFIGURATION' | 'EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_EMPTY_VARIANT_METADATA' | 'EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_VARIANT_WEIGHT_MUST_BE_POSITIVE' | 'EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_VARIANT_WEIGHTS_UNBALANCED' | 'EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_PLACE_CONFIG_REQUIRES_SCORING_ID_OR_DEFAULT' | 'EXPERIMENT_API_ERROR_TYPE_CONFIGS_MISSING_VARIANT' | 'EXPERIMENT_API_ERROR_TYPE_CONFIGS_VARIANT_MISSING_KEY' | 'EXPERIMENT_API_ERROR_TYPE_CONFIGS_VARIANT_MISSING_VALUE' | 'EXPERIMENT_API_ERROR_TYPE_CONFIGS_KEY_ALREADY_IN_USE' | 'EXPERIMENT_API_ERROR_TYPE_SYSTEM_ERROR' | 'EXPERIMENT_API_ERROR_TYPE_EXPERIMENT_RESULTS_NOT_FOUND' | 'EXPERIMENT_API_ERROR_TYPE_INVALID_TARGETING_CRITERIA' | 'EXPERIMENT_API_ERROR_TYPE_TARGETING_NOT_ALLOWED' | 'EXPERIMENT_API_ERROR_TYPE_INVALID_DURATION' | 'EXPERIMENT_API_ERROR_TYPE_CONFIGS_VARIANT_CONFIG_NOT_FOUND' | 'EXPERIMENT_API_ERROR_TYPE_INVALID_EXPERIMENT_NAME' | 'EXPERIMENT_API_ERROR_TYPE_CONDITIONAL_CONFIG_REQUIRES_NULL_BASELINE' | 'EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_CONTROL_VARIANT_MUST_MATCH_CURRENT_CONFIGURATION' | 'EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_VARIANTS_MUST_COVER_SAME_PLACES' | 'EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_VARIANT_HAS_DUPLICATE_PLACES' — Validation failures. EXPERIMENT_API_ERROR_TYPE_INVALID_VARIANT_CONFIGURATION EXPERIMENT_API_ERROR_TYPE_INVALID_VARIANT_LABEL EXPERIMENT_API_ERROR_TYPE_MUST_HAVE_EXACTLY_ONE_BASELINE_VARIANT EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_OVERLAPPING_RUNTIME EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_INVALID_SCORING_CONFIGURATIONS EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_UNEXPECTED_PRODUCT_TYPE EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_EMPTY_CONFIGURATION EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_EMPTY_VARIANT_METADATA EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_VARIANT_WEIGHT_MUST_BE_POSITIVE EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_VARIANT_WEIGHTS_UNBALANCED EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_PLACE_CONFIG_REQUIRES_SCORING_ID_OR_DEFAULT EXPERIMENT_API_ERROR_TYPE_CONFIGS_MISSING_VARIANT EXPERIMENT_API_ERROR_TYPE_CONFIGS_VARIANT_MISSING_KEY EXPERIMENT_API_ERROR_TYPE_CONFIGS_VARIANT_MISSING_VALUE EXPERIMENT_API_ERROR_TYPE_CONFIGS_KEY_ALREADY_IN_USE EXPERIMENT_API_ERROR_TYPE_SYSTEM_ERROR EXPERIMENT_API_ERROR_TYPE_EXPERIMENT_RESULTS_NOT_FOUND EXPERIMENT_API_ERROR_TYPE_INVALID_TARGETING_CRITERIA EXPERIMENT_API_ERROR_TYPE_TARGETING_NOT_ALLOWED EXPERIMENT_API_ERROR_TYPE_INVALID_DURATION EXPERIMENT_API_ERROR_TYPE_CONFIGS_VARIANT_CONFIG_NOT_FOUND EXPERIMENT_API_ERROR_TYPE_INVALID_EXPERIMENT_NAME EXPERIMENT_API_ERROR_TYPE_CONDITIONAL_CONFIG_REQUIRES_NULL_BASELINE EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_CONTROL_VARIANT_MUST_MATCH_CURRENT_CONFIGURATION EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_VARIANTS_MUST_COVER_SAME_PLACES EXPERIMENT_API_ERROR_TYPE_MATCHMAKING_VARIANT_HAS_DUPLICATE_PLACES
      - `errorCode` string, nullable — Stable machine-readable error code.
      - `errorMessage` string, nullable — Human-readable description of the failure.
      - `errorContext` object, nullable — Optional structured context about the failure (field paths, offending values, etc.).
    - `experimentStats` ExperimentStats — Computed stats for a running experiment.
      - `isSrmDetected` boolean — True if Sample Ratio Mismatch (SRM) was detected for the experiment.

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `404` — Not Found

---

[API](https://skmtc.net/roblox/apis/roblox-api.md) · [All operations](https://skmtc.net/roblox/apis/roblox-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/roblox/roblox-api/revisions/958b2b40425d/schema)