Get a team's matchups across the season, or only the listed weeks when weeks is provided.
AI agents call get_team_matchups to retrieve information from Yahoo Fantasy Baseball without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
weeks | array | — | Specific week numbers; defaults to all weeks |
teamKey | string | — | Team key; defaults to configured team |
Parameters from the server's own tool schema.
This is a read-only operation that queries and returns matchup information for a fantasy baseball team. It has no side effects, does not modify data, and poses minimal risk if called by an AI agent. The optional `weeks` parameter is a filter, not a destructive or executory operation.
From the tool's definition Tool description states 'Get a team's matchups' — retrieves matchup data with optional filtering by weeks. No modification, deletion, or execution of external operations described.
Attacks that exploit this kind of access
Get a team's matchups across the season, or only the listed weeks when weeks is provided. It is categorised as a Read tool in the Yahoo Fantasy Baseball MCP Server, which means it retrieves data without modifying state.
get_team_matchups accepts 2 parameters: weeks, teamKey. The full parameter table on this page comes from the server's own tool schema.
Register the Yahoo Fantasy Baseball MCP server in PolicyLayer and add a rule for get_team_matchups: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Yahoo Fantasy Baseball. Nothing to install.
get_team_matchups is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_team_matchups rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_team_matchups. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_team_matchups is provided by the Yahoo Fantasy Baseball MCP server (yahoo-fantasy-baseball-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
get_team_matchups is one line of Yahoo Fantasy Baseball's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
Teams ship this data inside their own products. See what a licence covers →