Fetch property claims for a Wikidata entity with qualifier and reference detail. Value QIDs are resolved to human-readable labels by default. Use the properties parameter to fetch only specific P-IDs — omitting it returns all statements, which can be large. Designed for fact verification: "what d...
Part of the Wikidata Mcp Server server.
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AI agents call wikidata_get_statements to retrieve information from Wikidata Mcp Server without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though wikidata_get_statements only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"wikidata_get_statements": {}
}
}See the full Wikidata Mcp Server policy for all 7 tools.
These attack patterns abuse exactly the kind of access wikidata_get_statements gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Fetch property claims for a Wikidata entity with qualifier and reference detail. Value QIDs are resolved to human-readable labels by default. Use the properties parameter to fetch only specific P-IDs — omitting it returns all statements, which can be large. Designed for fact verification: "what does Wikidata say about this entity's {property}?". Preferred-rank statements are the most current values.. It is categorised as a Read tool in the Wikidata Mcp Server MCP Server, which means it retrieves data without modifying state.
Register the Wikidata Mcp Server MCP server in PolicyLayer and add a rule for wikidata_get_statements: 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 Wikidata Mcp Server. Nothing to install.
wikidata_get_statements 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 wikidata_get_statements 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 wikidata_get_statements. 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.
wikidata_get_statements is provided by the Wikidata Mcp Server MCP server (@cyanheads/wikidata-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 7 Wikidata Mcp Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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