Endpoint Playground
Returns MLB.com's live navigation tree, including hidden nodes labeled with visibility, and the MLB-only value sets for leagues, divisions, game types, roster types, standings types, stat groups, supported stat types, leader categories, MLB Pipeline prospect filters, league-stats hitter positions and player pools, and observed Baseball Savant leaderboard categories and filters including Top Performers, ABS Challenges, Expected Statistics, Outs Above Average, Arm Strength, Arm Value, Home Runs, Percentile Rankings, Pitch Movement, Rolling Windows, Pitcher Arm Angle, Year-to-Year Changes, Catcher Blocking, Catcher Framing, Catcher Throwing, First Base Receiving, and Fielding Run Value. Use these values to discover sections and supported filters before calling MLB endpoints.
14 Oct 2026: 90 statcast_year_to_year_types; 1 fields had a value in every checked item.
Sample value profiles: value: “ba” and 89 other values.
curl 'https://api.crawlora.net/api/v1/mlb/discovery' \
-H "x-api-key: $CRAWLORA_API_KEY"No request parameters
{
"code": 200,
"msg": "OK",
"data": {
"sports": [
{
"id": 1,
"name": "Major League Baseball"
}
],
"leagues": [
{
"id": 103,
"name": "American League"
},
{
"id": 104,
"name": "National League"
}
],
"game_types": [
{
"value": "S",
"description": "Spring Training"
}
],
"stat_hitter_positions": [
{
"value": "C"
},
{
"value": "1B"
}
],
"stat_player_pools": [
{
"value": "QUALIFIED"
},
{
"value": "ALL"
}
],
"sections": [
{
"label": "News",
"url": "https://www.mlb.com/news"
}
]
}
}The sample response, schema and code snippets below work without an account. Sending a live request needs an API key.