Returns APIs that require zero authentication, optionally filtered by category.
AI agents call find_no_auth_apis to retrieve information from Mcp Public Apis without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and filters information from a public API dataset. It performs a read-only query operation with optional filtering by category. There are no modifications, deletions, code execution, or external state changes. The worst-case misuse would be gathering a list of unauthenticated endpoints, which is informational reconnaissance but not directly harmful on its own.
From the tool's definition Tool name 'find_no_auth_apis' and description 'Returns APIs that require zero authentication' indicate data retrieval with no side effects. Sibling tools like 'search_apis', 'get_api_detail', and 'get_categories' confirm this is a query/search operation.
Attacks that exploit this kind of access
Returns APIs that require zero authentication, optionally filtered by category. It is categorised as a Read tool in the Mcp Public Apis MCP Server, which means it retrieves data without modifying state.
Register the Mcp Public Apis MCP server in PolicyLayer and add a rule for find_no_auth_apis: 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 Mcp Public Apis. Nothing to install.
find_no_auth_apis 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 find_no_auth_apis 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 find_no_auth_apis. 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.
find_no_auth_apis is provided by the Mcp Public Apis MCP server (josephsenior/pblic-apis-mcp-server). 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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