[UNDOCUMENTED endpoint, verified 2026-04-30, schema may change] List suppliers. For inventory managers and store owners — view vendors and supply contacts. Returns paginated results via since_id cursor.
AI agents call list_suppliers to retrieve information from Sapo without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves supplier/vendor information without altering data, triggering external actions, or committing financial obligations. The pagination cursor pattern confirms it is a simple query operation. Low severity reflects minimal harm if an AI agent lists suppliers—no data loss, operational disruption, or financial exposure.
From the tool's definition Tool description states 'List suppliers' and 'view vendors and supply contacts' with 'paginated results via since_id cursor' — characteristic read-only retrieval patterns with no modification, deletion, or execution capabilities.
Documented attack patterns abuse exactly the kind of access list_suppliers gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Sapo, and nothing reaches the server without passing your rules. This is the rule we recommend for list_suppliers:
{
"version": "1",
"default": "deny",
"tools": {
"list_suppliers": {}
}
}list_suppliers is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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[UNDOCUMENTED endpoint, verified 2026-04-30, schema may change] List suppliers. For inventory managers and store owners — view vendors and supply contacts. Returns paginated results via since_id cursor. It is categorised as a Read tool in the Sapo MCP Server, which means it retrieves data without modifying state.
Register the Sapo MCP server in PolicyLayer and add a rule for list_suppliers: 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 Sapo. Nothing to install.
list_suppliers 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 list_suppliers 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 list_suppliers. 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.
list_suppliers is provided by the Sapo MCP server (nguyennguyenit/sapo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Sapo, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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93 Sapo tools catalogued and risk-classified — across an index of 43,000+ MCP servers.