Issue #569. Ranked individual listings (currently active asks) for a single EVM NFT collection on a single chain, sorted floor-ascending. Distinct from get_nft_collection, which exposes only collection-level metadata (floor / volume / holders) and so cannot ground a 'show me the N cheapest' quest...
AI agents call get_nft_listings to retrieve information from VaultPilot MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
chain | string | — | EVM chain the collection is deployed on. Defaults to ethereum. |
limit | integer | — | Max ranked listings to return (cheapest-first). Capped at 10 — small enough that the agent can validate every row index against the response before referencing |
contractAddress | string | Yes | EVM contract address of the NFT collection. |
Parameters from the server's own tool schema.
Even though get_nft_listings only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
Issue #569. Ranked individual listings (currently active asks) for a single EVM NFT collection on a single chain, sorted floor-ascending. Distinct from get_nft_collection, which exposes only collection-level metadata (floor / volume / holders) and so cannot ground a 'show me the N cheapest' question. Source: Reservoir /orders/asks/v5?status=active&sortBy=price&sortDirection=asc. Returns rows with tokenId, priceEth / priceUsd, priceCurrency, listingSource (marketplace domain — opensea.io / blur.io / x2y2.io / etc.), makerAddress (seller), validUntil (expiry), and orderKind (seaport-v1.6 / blur / etc.). Page size schema-capped at 10 (default 5) — small enough that the agent can validate every referenced row exists in the response. Single-token criteria only; collection-bid criteria orders are filtered out so every row names a concrete tokenId. SCOPE: read-only display tool. VaultPilot does NOT yet expose an NFT-buy preparation flow — Seaport / blur / x2y2 marketplace fills require EIP-712 typed-data signing, gated on the typed-data clear-sign defenses tracked at #453. Use these rows for research / candidate selection; execute any actual buy via the listing's marketplace UI (listingSource field) until the prepare flow lands. AGENT BEHAVIOR: do NOT extrapolate beyond rows.length. Validate that any rows[i] referenced in the answer actually exists in this response. The small page cap is the fabrication-resistance guard called out in #569. EVM-only in v1; Solana NFT marketplaces (Magic Eden / Tensor) deferred. Read-only. It is categorised as a Read tool in the VaultPilot MCP MCP Server, which means it retrieves data without modifying state.
get_nft_listings accepts 3 parameters: chain, limit, contractAddress. Required: contractAddress. The full parameter table on this page comes from the server's own tool schema.
Register the VaultPilot MCP server in PolicyLayer and add a rule for get_nft_listings: 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 VaultPilot MCP. Nothing to install.
get_nft_listings 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_nft_listings 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_nft_listings. 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_nft_listings is provided by the VaultPilot MCP server (vaultpilot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.