mls_get_rosters

Get MLS team rosters with player information for a specific team and season

SERVERMcp SOURCEhttps://mcp.balldontlie.io/mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade A, identity unverified Pull the record →

This record as markdown: /tools/io-balldontlie-mcp/mls-get-rosters.md

WHAT IT DOES

What mls_get_rosters does on Mcp

AI agents call mls_get_rosters 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.

RISK

Why mls_get_rosters is rated Low

This tool retrieves and queries roster information from a sports API. It is a read-only operation that fetches existing data about MLS team players for a given team and season. There are no write, execution, destructive, or financial operations involved. The tool simply returns informational data with no ability to modify state or trigger external actions.

From the tool's definition Tool name 'mls_get_rosters' and description 'Get MLS team rosters with player information for a specific team and season' indicate data retrieval with no modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs mls_get_rosters safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For mls_get_rosters, this is the rule to start with:

mls_get_rosters Allowed

mls_get_rosters is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "mls_get_rosters": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp, apply this rule, and every mls_get_rosters call is checked against it from then on.

FAQ

Questions about mls_get_rosters

What does the mls_get_rosters tool do? +

Get MLS team rosters with player information for a specific team and season. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on mls_get_rosters? +

Register the MCP server in PolicyLayer and add a rule for mls_get_rosters: 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 Mcp. Nothing to install.

What risk level is mls_get_rosters? +

mls_get_rosters is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit mls_get_rosters? +

Yes. Add a rate_limit block to the mls_get_rosters 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.

How do I block mls_get_rosters completely? +

Set action: deny in the PolicyLayer policy for mls_get_rosters. 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.

What MCP server provides mls_get_rosters? +

mls_get_rosters is provided by the MCP server (https://mcp.balldontlie.io/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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