# mlb_get_lineups

Get MLB pre-game batting lineups and probable pitchers. Lineups typically appear 1-2 hours before first pitch. Available starting from the 2026 season.

Agent View of the PolicyLayer registry record for `mlb_get_lineups`. HTML page: https://policylayer.com/tools/io-balldontlie-mcp/mlb-get-lineups

## Facts

- Tool: `mlb_get_lineups`
- Server: Mcp (`https://mcp.balldontlie.io/mcp`) — https://policylayer.com/tools/io-balldontlie-mcp.md
- Homepage: https://github.com/balldontlie-api/mcp
- Risk category: Read (Low risk)
- Registry record: grade A, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "mlb_get_lineups",
    "arguments": {}
  }
}
```

## Why mlb_get_lineups is rated Low

This tool queries and returns sports data (lineups and pitcher information) without any side effects. It is a standard read operation that retrieves publicly available sports information. No data is created, modified, deleted, or executed. The blast radius of misuse is minimal—an AI agent could only display stale or incorrect sports information.

From the tool's own definition: "Tool retrieves MLB pre-game batting lineups and probable pitchers—purely informational data with no modification, deletion, or execution capability."

## Use case

AI agents call mlb_get_lineups to retrieve information from Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Mcp:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "mlb_get_lineups": {}
  }
}
```

## Other tools on Mcp (363)

- `atp_get_head_to_head` — Read — https://policylayer.com/tools/io-balldontlie-mcp/atp-get-head-to-head.md
- `atp_get_match` — Read — https://policylayer.com/tools/io-balldontlie-mcp/atp-get-match.md
- `atp_get_match_stats` — Read — https://policylayer.com/tools/io-balldontlie-mcp/atp-get-match-stats.md
- `atp_get_matches` — Read — https://policylayer.com/tools/io-balldontlie-mcp/atp-get-matches.md
- `atp_get_odds` — Read — https://policylayer.com/tools/io-balldontlie-mcp/atp-get-odds.md
- `atp_get_player` — Read — https://policylayer.com/tools/io-balldontlie-mcp/atp-get-player.md
- `atp_get_player_career_stats` — Read — https://policylayer.com/tools/io-balldontlie-mcp/atp-get-player-career-stats.md
- `atp_get_players` — Read — https://policylayer.com/tools/io-balldontlie-mcp/atp-get-players.md
- `atp_get_race` — Read — https://policylayer.com/tools/io-balldontlie-mcp/atp-get-race.md
- `atp_get_rankings` — Read — https://policylayer.com/tools/io-balldontlie-mcp/atp-get-rankings.md
- `atp_get_tournament` — Read — https://policylayer.com/tools/io-balldontlie-mcp/atp-get-tournament.md
- `atp_get_tournaments` — Read — https://policylayer.com/tools/io-balldontlie-mcp/atp-get-tournaments.md
- `bundesliga_get_betting_odds` — Read — https://policylayer.com/tools/io-balldontlie-mcp/bundesliga-get-betting-odds.md
- `bundesliga_get_match_events` — Read — https://policylayer.com/tools/io-balldontlie-mcp/bundesliga-get-match-events.md
- `bundesliga_get_match_lineups` — Read — https://policylayer.com/tools/io-balldontlie-mcp/bundesliga-get-match-lineups.md
- `bundesliga_get_matches` — Read — https://policylayer.com/tools/io-balldontlie-mcp/bundesliga-get-matches.md
- `bundesliga_get_player_match_stats` — Read — https://policylayer.com/tools/io-balldontlie-mcp/bundesliga-get-player-match-stats.md
- `bundesliga_get_player_props` — Read — https://policylayer.com/tools/io-balldontlie-mcp/bundesliga-get-player-props.md
- `bundesliga_get_players` — Read — https://policylayer.com/tools/io-balldontlie-mcp/bundesliga-get-players.md
- `bundesliga_get_rosters` — Read — https://policylayer.com/tools/io-balldontlie-mcp/bundesliga-get-rosters.md
- `bundesliga_get_standings` — Read — https://policylayer.com/tools/io-balldontlie-mcp/bundesliga-get-standings.md
- `bundesliga_get_team_match_stats` — Read — https://policylayer.com/tools/io-balldontlie-mcp/bundesliga-get-team-match-stats.md
- `bundesliga_get_teams` — Read — https://policylayer.com/tools/io-balldontlie-mcp/bundesliga-get-teams.md
- `cbb_get_active_players` — Read — https://policylayer.com/tools/io-balldontlie-mcp/cbb-get-active-players.md
- `cbb_get_conferences` — Read — https://policylayer.com/tools/io-balldontlie-mcp/cbb-get-conferences.md
- `cbb_get_games` — Read — https://policylayer.com/tools/io-balldontlie-mcp/cbb-get-games.md
- `cbb_get_odds` — Read — https://policylayer.com/tools/io-balldontlie-mcp/cbb-get-odds.md
- `cbb_get_player_batting_stats` — Read — https://policylayer.com/tools/io-balldontlie-mcp/cbb-get-player-batting-stats.md
- `cbb_get_player_pitching_stats` — Read — https://policylayer.com/tools/io-balldontlie-mcp/cbb-get-player-pitching-stats.md
- `cbb_get_player_season_batting_stats` — Read — https://policylayer.com/tools/io-balldontlie-mcp/cbb-get-player-season-batting-stats.md
- …and 333 more: https://policylayer.com/tools/io-balldontlie-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-balldontlie-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-balldontlie-mcp