AI agents call worldbank.indicator to retrieve information from Mcp without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves publicly available World Bank data (economic indicators like GDP). It performs a read-only query operation with no capability to modify, delete, or execute code. The 'pay-per-call' settlement mechanism does not change the classification of the underlying action. No destructive, financial transaction, or code execution capability is present.
From the tool's definition Tool description states 'fetch a time series of a specific indicator' from World Bank Open Data. The verb 'fetch' and the nature of querying public economic data indicates retrieval without side effects.
Attacks that exploit this kind of access
World Bank Open Data — fetch a time series of a specific indicator (e.g., NY.GDP.MKTP.CD = GDP current US$) for a country (ISO 2/3-letter code or. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.
Register the MCP server in PolicyLayer and add a rule for worldbank.indicator: 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.
worldbank.indicator 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 worldbank.indicator 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 worldbank.indicator. 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.
worldbank.indicator is provided by the MCP server (@2sio/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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