data_list_for_sale
Lists everything buyable here over the x402 pay-as-you-fetch protocol, with each resource_id, its price and the inputs it takes: a trust passport for any Base wallet (see trust_check_wallet), the same in bulk for up to 50 counterparties, workforce directory search, on-chain settlement verificatio...
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What data_list_for_sale does on AFOS — Agentic Financial OS
AI agents call data_list_for_sale to retrieve information from AFOS — Agentic Financial OS without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why data_list_for_sale is rated Low
data_list_for_sale is a query/discovery tool that retrieves structured information about available data products and their metadata (resource_id, price, inputs required). It has no side effects—it does not execute transactions, modify state, delete data, or trigger external operations.
From the tool's definition Tool 'lists everything buyable' and description states 'Call this before data_buy', indicating it retrieves and displays data about available resources with prices and parameters. No payment, modification, deletion, or execution of external operations occurs.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs data_list_for_sale safely
PolicyLayer is an MCP gateway: it sits between your AI agents and AFOS — Agentic Financial OS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For data_list_for_sale, this is the rule to start with:
data_list_for_sale is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect AFOS — Agentic Financial OS, apply this rule, and every data_list_for_sale call is checked against it from then on.
Questions about data_list_for_sale
Lists everything buyable here over the x402 pay-as-you-fetch protocol, with each resource_id, its price and the inputs it takes: a trust passport for any Base wallet (see trust_check_wallet), the same in bulk for up to 50 counterparties, workforce directory search, on-chain settlement verification and prompt-injection screening. Needs no account, and neither does paying. Call this before data_buy. It is categorised as a Read tool in the AFOS — Agentic Financial OS MCP Server, which means it retrieves data without modifying state.
Register the AFOS — Agentic Financial OS MCP server in PolicyLayer and add a rule for data_list_for_sale: 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 AFOS — Agentic Financial OS. Nothing to install.
data_list_for_sale 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 data_list_for_sale 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 data_list_for_sale. 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.
data_list_for_sale is provided by the AFOS — Agentic Financial OS MCP server (https://focxle.com/api/v1/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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