Ticker Shelf
ticker_shelfIdempotent
Shop an economic idea for $0.25: one delayed scan (CBOE options, Nasdaq equities) for a ticker, a head-to-head ("COMPARE two tickers"), or a theme ("BEST a theme"). Ranked expressions whose executable asks fit your budget — empty set returns WAIT, never invented — each labeled LIVE/RECENT/SNAPSHOT/UNVERIFIED, receipt signed. Quotes move; no trades placed; not investment advice. POST to paid_url with an x402 v2 PAYMENT-SIGNATURE header. See https://docs.cdp.coinbase.com/x402 Paid tool — $0.25, USDC on Base or Arbitrum One. Paid URL: https://aemb.pro/v1/shelf.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| query | Yes | What to shop for: "a ticker", "a ticker, $5 budget", "COMPARE two tickers", "BEST a theme, $25 budget" (max 200 chars) | |
| max_rows | No | Rows on the shelf, 3-10 (default 10) | |
| objective | No | convexity (default), long-clock, fast-heat, tail, income, leveraged | |
| budget_usd | No | Hard budget gate in USD (1/5/10/25/50/100 supported; omit for uncapped) | |
| idempotency_key | Yes | Client-generated UUID v4, one per logical request. Replaying the same key on the same tool returns the original receipt. |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| how | Yes | How to pay: POST the tool inputs as JSON to paid_url with an x402 v2 PAYMENT-SIGNATURE header | |
| tool | Yes | Tool name, e.g. ping | |
| asset | Yes | Settlement asset | |
| price | Yes | Exact price, e.g. "$0.05" | |
| networks | Yes | EVM CAIP-2 network ids accepted | |
| paid_url | Yes | x402-paid HTTPS URL to POST the tool inputs to | |
| facilitator | Yes | x402 facilitator | |
| payment_required | Yes | Always true: this MCP tool is a payment pointer; the tool itself is monetized via x402. |