scvd.store WebMCP Tools, Schemas & Agent Capabilities

scvd.store

live Unverified (seed import) Finance & Crypto 8 tools imperative implementation

An evidence observatory for agentic commerce: preflight an x402 door before paying, free conformance checks on the signed receipt after, a Bitcoin-anchored corpus over time. USDC on Base, Polygon,…

First seen 2026-09-07 · Last seen 2026-09-14 · Source: webmcp.com

Answer 5 · Act 3 · Transact 0 · Score: Not yet scored

Tool inspector

preflight_endpoint

act imperative

Probes one x402 endpoint unpaid and returns whether it serves a well-formed x402 v2 payment challenge right now: the verdict, the level reached on the L0–L6 evidence ladder, each check's tri-state result, and what a single probe cannot establish. A shape check at one moment, not an uptime or delivery claim. Free and rate limited; the ceiling travels with the result.

Page: /

Input schema

Property	Type	Required	Description
`url`	string	yes	The https endpoint a buyer would GET expecting a 402 challenge.

Raw JSON schema

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "The https endpoint a buyer would GET expecting a 402 challenge.",
      "maxLength": 2048
    }
  },
  "required": [
    "url"
  ],
  "additionalProperties": false,
  "examples": [
    {
      "url": "https://example.com/api/paid-answer"
    }
  ]
}

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