IDCheck: batch status lookup. Send up to 100 process_ids per call and receive the same status payload as get_process_status for each. Use this for nightly reconciliation jobs or backfill, not for hot-path polling.
AI agents call batch_get_process_status to retrieve information from Mcp Ap2 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves process status information in bulk without side effects. Despite being part of a payment protocol server (AP2), the tool itself only queries existing status data rather than modifying, executing, or moving money. The stated use case (reconciliation and backfill) confirms it is a read-only operation.
From the tool's definition Tool performs "batch status lookup" and "receive the same status payload", which are read operations. The description explicitly recommends it for "nightly reconciliation jobs or backfill", indicating data retrieval without modification.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access batch_get_process_status gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Ap2, and nothing reaches the server without passing your rules. This is the rule we recommend for batch_get_process_status:
{
"version": "1",
"default": "deny",
"tools": {
"batch_get_process_status": {}
}
} batch_get_process_status is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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IDCheck: batch status lookup. Send up to 100 process_ids per call and receive the same status payload as get_process_status for each. Use this for nightly reconciliation jobs or backfill, not for hot-path polling. It is categorised as a Read tool in the Mcp Ap2 MCP Server, which means it retrieves data without modifying state.
Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for batch_get_process_status: 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 Ap2. Nothing to install.
batch_get_process_status 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 batch_get_process_status 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 batch_get_process_status. 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.
batch_get_process_status is provided by the Mcp Ap2 MCP server (@codespar/mcp-ap2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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1300 Mcp Ap2 tools catalogued and risk-classified — across an index of 43,000+ MCP servers.