search_nodes
Full-text search across all n8n nodes
Part of the N8n MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
WHEN AI AGENTS USE THIS TOOL
AI agents call search_nodes to retrieve information from N8n 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.
WHY ENFORCE A POLICY ON SEARCH_NODES
Even though search_nodes 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.
RECOMMENDED POLICY
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
tools:
search_nodes:
rules:
- action: allowSee the full N8n policy for all 20 tools.
DETAILS
MORE N8N TOOLS
tools_documentation Read get_node Read search_templates Read get_template Read n8n_get_workflow Read n8n_list_workflows Read n8n_executions Read n8n_health_check Read SIMILAR READ TOOLS ON OTHER SERVERS
list_bases Airtable list_tables Airtable list_records Airtable get_record Airtable search_records Airtable search Amplitude RELATED READING
FREQUENTLY ASKED QUESTIONS
What does the search_nodes tool do?
Full-text search across all n8n nodes. It is categorised as a Read tool in the N8n MCP Server, which means it retrieves data without modifying state.
How do I enforce a policy on search_nodes?
Add a rule in your Intercept YAML policy under the tools section for search_nodes. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the N8n MCP server.
What risk level is search_nodes?
search_nodes is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Can I rate-limit search_nodes?
Yes. Add a rate_limit block to the search_nodes rule in your Intercept 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.
How do I block search_nodes completely?
Set action: deny in the Intercept policy for search_nodes. 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.
What MCP server provides search_nodes?
search_nodes is provided by the N8n MCP server (czlonkowski/n8n-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
ENFORCE POLICIES ON N8N
Open source. One binary. Zero dependencies.