Retrieve a Pix immediate charge (cob) by its BCB txid. Returns status, QR payload, and associated received Pix (if paid).
AI agents call get_pix_charge 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.
Although this tool operates in a financial domain (Pix is Brazil's instant payment system), it performs only information retrieval. It queries and returns existing charge data without creating, modifying, deleting, or executing any payment transaction. The tool reads charge status and associated data, making it a Read category tool.
From the tool's definition Tool description states 'Retrieve a Pix immediate charge' with return values 'status, QR payload, and associated received Pix'.
Documented attack patterns abuse exactly the kind of access get_pix_charge 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 get_pix_charge:
{
"version": "1",
"default": "deny",
"tools": {
"get_pix_charge": {}
}
}get_pix_charge is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Retrieve a Pix immediate charge (cob) by its BCB txid. Returns status, QR payload, and associated received Pix (if paid). 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 get_pix_charge: 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.
get_pix_charge 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 get_pix_charge 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 get_pix_charge. 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.
get_pix_charge 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.
Free to start. No card required.
1300 Mcp Ap2 tools catalogued and risk-classified — across an index of 43,000+ MCP servers.