Return the free Virtuals ACP direct-buy job-create handoff packet for token_safety_check before a token swap. Metadata only; ACP payment/job creation is buyer-controlled.
Part of the Fia Signals Mcp server.
Free to start. No card required.
AI agents call token_safety_check_acp_checkout to retrieve information from Fia Signals Mcp without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though token_safety_check_acp_checkout only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"token_safety_check_acp_checkout": {}
}
}See the full Fia Signals Mcp policy for all 6 tools.
These attack patterns abuse exactly the kind of access token_safety_check_acp_checkout gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Return the free Virtuals ACP direct-buy job-create handoff packet for token_safety_check before a token swap. Metadata only; ACP payment/job creation is buyer-controlled.. It is categorised as a Read tool in the Fia Signals Mcp MCP Server, which means it retrieves data without modifying state.
Register the Fia Signals MCP server in PolicyLayer and add a rule for token_safety_check_acp_checkout: 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 Fia Signals Mcp. Nothing to install.
token_safety_check_acp_checkout 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 token_safety_check_acp_checkout 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 token_safety_check_acp_checkout. 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.
token_safety_check_acp_checkout is provided by the Fia Signals MCP server (https://x402.fiasignals.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 6 Fia Signals Mcp tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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