Retrieves details about a Notion entity (page, database, or data source) by URL or ID. Provide URL or ID in id parameter. Make multiple calls to fetch multiple entities. Pages use enhanced Markdown format. For the complete specification, fetch the MCP resource at notion://docs/enhanced-markdown-s...
Risk signalsBulk/mass operation — affects multiple targets
Part of the Notion server.
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AI agents call notion-fetch to retrieve information from Notion 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 notion-fetch 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": {
"notion-fetch": {}
}
}See the full Notion policy for all 26 tools.
These attack patterns abuse exactly the kind of access notion-fetch 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.
Retrieves details about a Notion entity (page, database, or data source) by URL or ID. Provide URL or ID in id parameter. Make multiple calls to fetch multiple entities. Pages use enhanced Markdown format. For the complete specification, fetch the MCP resource at notion://docs/enhanced-markdown-spec. Databases return all data sources (collections). Each data source has a unique ID shown in <data-source url="collection://..."> tags. You can pass a data source ID directly to this tool to fetch details about that specific data source, including its schema and properties. Use data source IDs with update_data_source and query_data_sources tools. Multi-source databases (e.g., with linked sources) will show multiple data sources. Set include_discussions to true to see discussion counts and inline discussion markers that correlate with the get_comments tool. The page output will include a <page-discussions> summary tag with discussion count, preview snippets, and discussion:// URLs that match the discussion IDs returned by get_comments. <example>{"id": "https://notion.so/workspace/Page-a1b2c3d4e5f67890"}</example> <example>{"id": "12345678-90ab-cdef-1234-567890abcdef"}</example> <example>{"id": "https://myspace.notion.site/Page-Title-abc123def456"}</example> <example>{"id": "page-uuid", "include_discussions": true}</example> <example>{"id": "collection://12345678-90ab-cdef-1234-567890abcdef"}</example>. It is categorised as a Read tool in the Notion MCP Server, which means it retrieves data without modifying state.
Register the Notion MCP server in PolicyLayer and add a rule for notion-fetch: 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 Notion. Nothing to install.
notion-fetch 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 notion-fetch 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 notion-fetch. 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.
notion-fetch is provided by the Notion MCP server (@notion-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 26 Notion tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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