gpt55_x402_buyer_shortlist_get
Fetch x402 discovery documents, rank matching resources by advertised price, live-check the cheapest candidates with 402 quote inspection, and return a buyer-ready shortlist with verified amount, scheme, network, payTo, tags, and warnings. This deterministic endpoint does not call an upstream mod...
This record as markdown: /tools/xyz-558686-gpt55-token-gateway/gpt55-x402-buyer-shortlist-get.md
What gpt55_x402_buyer_shortlist_get does on GPT 5 5 x402 Low Cost Agent Tools
AI agents call gpt55_x402_buyer_shortlist_get to retrieve information from GPT 5 5 x402 Low Cost Agent Tools without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
urls | array | — | |
limit | integer | — | |
query | string | — | |
origins | array | — | |
max_bytes | integer | — | |
timeout_ms | integer | — | |
verify_limit | integer | — | |
discovery_urls | array | — |
Parameters from the server's own tool schema.
Why gpt55_x402_buyer_shortlist_get is rated Low
Tool fetches and ranks data without modifying state, but involves payment-adjacent price discovery.
From the tool's definition Fetch x402 discovery documents, rank matching resources, return buyer-ready shortlist
Attacks that exploit this kind of access
The rule that runs gpt55_x402_buyer_shortlist_get safely
PolicyLayer is an MCP gateway: it sits between your AI agents and GPT 5 5 x402 Low Cost Agent Tools, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For gpt55_x402_buyer_shortlist_get, this is the rule to start with:
gpt55_x402_buyer_shortlist_get 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 GPT 5 5 x402 Low Cost Agent Tools, apply this rule, and every gpt55_x402_buyer_shortlist_get call is checked against it from then on.
Questions about gpt55_x402_buyer_shortlist_get
Fetch x402 discovery documents, rank matching resources by advertised price, live-check the cheapest candidates with 402 quote inspection, and return a buyer-ready shortlist with verified amount, scheme, network, payTo, tags, and warnings. This deterministic endpoint does not call an upstream model. GET variant for agents that prefer query parameters. Pay $0.005 per request with x402 exact USDC on Base or Solana when advertised. Canonical live prices: https://gpt55.558686.xyz/x402/live-prices.json. It is categorised as a Read tool in the GPT 5 5 x402 Low Cost Agent Tools MCP Server, which means it retrieves data without modifying state.
gpt55_x402_buyer_shortlist_get accepts 8 parameters: urls, limit, query, origins, max_bytes, timeout_ms, verify_limit, discovery_urls. The full parameter table on this page comes from the server's own tool schema.
Register the GPT 5 5 x402 Low Cost Agent Tools MCP server in PolicyLayer and add a rule for gpt55_x402_buyer_shortlist_get: 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 GPT 5 5 x402 Low Cost Agent Tools. Nothing to install.
gpt55_x402_buyer_shortlist_get 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 gpt55_x402_buyer_shortlist_get 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 gpt55_x402_buyer_shortlist_get. 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.
gpt55_x402_buyer_shortlist_get is provided by the GPT 5 5 x402 Low Cost Agent Tools MCP server (https://gpt55.558686.xyz/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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