Endpoint Playground
Returns the Arm Value section's complete embedded table, including its Run, Fld, Pit, team, and league views, filters, local sorting, and pagination. Expanded player rows are available from mlb-statcast-arm-value-details. The JSON rows contain the same selected records as the upstream CSV export.
14 Oct 2026: 7 rows; 34 fields had a value in every checked item.
Sample value profiles: est_rate_att_generic_fielder: 0.31 to 0.4, median 0.36; entity_name: “Bellinger, Cody” and 6 other values; team_image_url: mlbstatic.com.
curl 'https://api.crawlora.net/api/v1/mlb/statcast-arm-value?type=Run&game_type=Regular&key_base_out=All&minimum_opps=top&split=no&team_id=108&with_team_only=1&sort=entity_name&sort_dir=asc' \
-H "x-api-key: $CRAWLORA_API_KEY"| Parameter | Type | Required | Prefilled value | Description |
|---|---|---|---|---|
| q | string | No | Case- and accent-insensitive local substring on the displayed row name; up to 100 characters | |
| type | string | No | Run | Leaderboard view |
| game_type | string | No | Regular | Game type |
| key_base_out | string | No | All | Baserunner situation |
| minimum_opps | string | No | top | Minimum opportunities |
| start_year | integer | No | Start season, 2016 through current season | |
| end_year | integer | No | End season, 2016 through current season; must be >= start_year | |
| split | string | No | no | Return one row per season |
| team_id | string | No | 108 | MLB team id from mlb_discovery, split for All Teams Split by Team, or empty for All Teams |
| with_team_only | string | No | 1 | Team-roster membership for a selected team |
| sort | string | No | entity_name | Local table sort field |
| sort_dir | string | No | asc | Local sort direction |
| limit | integer | No | Rows per page (1-500) | |
| offset | integer | No | Zero-based row offset |
{
"code": 200,
"msg": "OK",
"data": {
"board": "arm-value",
"type": "Fld",
"game_type": "Regular",
"key_base_out": "All",
"minimum_opps": "top",
"start_year": 2026,
"end_year": 2026,
"split": "no",
"team_id": "147",
"with_team_only": true,
"sort": "fielder_runs",
"sort_dir": "desc",
"total": 4,
"offset": 0,
"limit": 2,
"source_url": "https://baseballsavant.mlb.com/leaderboard/baserunning?game_type=Regular&key_base_out=All&n=top&season_end=2026&season_start=2026&split=no&team=147&type=Fld&with_team_only=1",
"fetched_at": "2026-09-29T00:00:00Z",
"rows": [
{
"entity_name": "Example Player",
"entity_id": 677800,
"entity_code": "Fld",
"fielder_runs": 2.62,
"runner_runs": -0.32,
"n_opp_xb": 309,
"n_att_xb": 91,
"team_name": "BOS"
}
]
}
}The sample response, schema and code snippets below work without an account. Sending a live request needs an API key.