ovapi-lines
Search all Dutch public transport lines (bus, tram, metro, train,
This record as markdown: /tools/io-github-derekslinz-meta-data-mcp/ovapi-lines.md
What ovapi-lines does on Meta Data Mcp
AI agents call ovapi-lines to retrieve information from Meta Data Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why ovapi-lines is rated Low
This tool retrieves information about public transport lines from an open API. It performs a read-only search operation with no side effects, data modification, code execution, or destructive capability. The queried data is public (Dutch public transport) and the operation is informational only.
From the tool's definition Tool name 'ovapi-lines' and description 'Search all Dutch public transport lines' indicate a query/search operation against public transport data with no modification or execution capability.
Attacks that exploit this kind of access
The rule that runs ovapi-lines safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Meta Data Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For ovapi-lines, this is the rule to start with:
ovapi-lines is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Meta Data Mcp, apply this rule, and every ovapi-lines call is checked against it from then on.
Questions about ovapi-lines
Search all Dutch public transport lines (bus, tram, metro, train,. It is categorised as a Read tool in the Meta Data Mcp MCP Server, which means it retrieves data without modifying state.
Register the Meta Data MCP server in PolicyLayer and add a rule for ovapi-lines: 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 Meta Data Mcp. Nothing to install.
ovapi-lines 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 ovapi-lines 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 ovapi-lines. 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.
ovapi-lines is provided by the Meta Data MCP server (pypi:meta-data-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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