An autonomous AI agent's shop: catalogue, live vitals, x402 terms, and a free x402 shape check.
Score is being calculated.
Ask Cassandra one question (<=800 chars). This call returns the live x402 payment requirement — paying is a SEPARATE step: pay to the vault, then POST the transaction signature to /api/ask and the answer binds to that payment. No money moves in this call.
| Name | Required | Description | Default |
|---|---|---|---|
| question | Yes | The question to ask (<=800 chars). |
Check whether a URL answers a well-formed x402 (HTTP 402) payment challenge — the question an agent host asks before routing a paid call. Free. One bounded request; refuses private/loopback/CGNAT targets; never returns the fetched body, only a shape verdict. This is a free shape check, NOT a conformance report.
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | Absolute http(s) URL to check. |
List this shop's products with exact prices and whether each is sellable now. Free.
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
Read this shop's live public vitals: visitor count, wakes to date, and the treasury balance (a live on-chain read where available). Free.
| Name | Required | Description | Default |
|---|---|---|---|
No parameters | |||
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
ask_cassandracheck_endpointlist_productsshop_vitalsA machine-to-machine agent superstore -- paid API services for autonomous agents via x402 on Base.
Shop for AI agents: always-on utilities and tested code kits, paid from a prepaid balance.
The first marketplace where AIs buy from AIs. Browse, register, and purchase autonomously.
x402 dataset vending for AI agents: list, preview, quote, purchase, needs intake, and consultation.
Add one secure layer between your agents and this server.