Search datasets in the Spanish national open data catalog (datos.gob.es). Filter by theme (medio-ambiente, economia, salud, etc.) or publisher.
AI agents call search_open_data to retrieve information from Spanish Public Data MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries publicly available Spanish government data through filtering and search operations. It has no side effects, cannot modify data, execute code, delete records, or move money. The blast radius of misuse is minimal since the underlying data is public. This is a straightforward Read category tool.
From the tool's definition Tool description states it 'Search[es] datasets' and 'Filter[s]' by theme or publisher—pure query operations with no modification, deletion, or execution capabilities.
Attacks that exploit this kind of access
Search datasets in the Spanish national open data catalog (datos.gob.es). Filter by theme (medio-ambiente, economia, salud, etc.) or publisher. It is categorised as a Read tool in the Spanish Public Data MCP MCP Server, which means it retrieves data without modifying state.
Register the Spanish Public Data MCP server in PolicyLayer and add a rule for search_open_data: 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 Spanish Public Data MCP. Nothing to install.
search_open_data 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 search_open_data 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 search_open_data. 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.
search_open_data is provided by the Spanish Public Data MCP server (mjgmario/spanish-public-info-radar-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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