Search for journals, conferences, and other publication sources. Results are sorted by h-index descending by default, making it easy to identify top-tier venues. Returns h-index, impact metrics, and open access status. Use check_venue_quality for detailed metrics on a specific venue, or get_top_v...
AI agents call search_sources to retrieve information from OpenAlex Research MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Even though search_sources only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Documented attack patterns abuse exactly the kind of access search_sources gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and OpenAlex Research MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for search_sources:
{
"version": "1",
"default": "deny",
"tools": {
"search_sources": {}
}
}search_sources is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Search for journals, conferences, and other publication sources. Results are sorted by h-index descending by default, making it easy to identify top-tier venues. Returns h-index, impact metrics, and open access status. Use check_venue_quality for detailed metrics on a specific venue, or get_top_venues_for_field to discover the best venues in a research area. It is categorised as a Read tool in the OpenAlex Research MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenAlex Research MCP Server MCP server in PolicyLayer and add a rule for search_sources: 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 OpenAlex Research MCP Server. Nothing to install.
search_sources 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_sources 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_sources. 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_sources is provided by the OpenAlex Research MCP Server MCP server (oksure/openalex-research-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 31 OpenAlex Research MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
31 OpenAlex Research MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.