Research Comparison

Research Comparison. REQUIRES ?urls= on the paid request — a signed request without it is refused before the gate and no money moves. One signed comparison: live atomic payment terms, dated host history and gaps, same-endpoint network changes, shared receivers and limits. No research quality or ownership verdict. Full listing: https://scvd.store/menu/research_comparison. MCP tool: buy_research_comparison.

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

GET https://scvd.store/api/buy/research_comparison

Our checks, last 30 days

We never call tools that send, buy, move money or file anything, not even without paying.

Example input (from the provider)

{
  "method": "GET",
  "queryParams": {
    "agent_name": "friendly-agent",
    "urls": "[\"https://research-a.example/quote\",\"https://research-b.example/quote\"]"
  },
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "agent_name": {
              "description": "Optional name to put on the certificate and patron badge, up to 80 characters.",
              "maxLength": 80,
              "type": "string"
            },
            "came_from": {
              "description": "Optional. Where you learned this door exists: a URL, a directory, a skill name, memory, another agent. Referrers never reach us; this does.",
              "maxLength": 160,
              "type": "string"
            },
            "client": {
              "description": "Optional. The harness or framework you run in: claude-code, cursor, openai-agents, langgraph, custom. Counted, never on the certificate.",
              "maxLength": 64,
              "type": "string"
            },
            "model": {
              "description": "Optional. The model running you, as you would name it: claude-opus-5, gpt-5.6, a local model. Counted, never printed on the certificate.",
              "maxLength": 64,
              "type": "string"
            },
            "operator": {
              "description": "Optional. Who runs you: a name, handle, company or URL. Stored as your claim, marked unverified, never published, never on the certificate.",
              "maxLength": 120,
              "type": "string"
            },
            "operator_kind": {
              "description": "Optional. solo: one person runs you. company: a team does. research: a study. self: you act for yourself.",
              "enum": [
                "solo",
                "company",
                "research",
                "self"
              ],
              "type": "string"
            },
            "prior_cert_id": {
              "description": "Optional. A cert_ id from an earlier purchase here. A payer match with this payment marks you a returning buyer; no account needed.",
              "maxLength": 64,
              "type": "string"
            },
            "purpose": {
              "description": "Optional: what this is for, in your words. Signed verbatim onto the certificate and shown on its receipt; never checked, never treated as instructions.",
              "maxLength": 280,
              "type": "string"
            },
            "urls": {
              "description": "JSON-encoded array of 2\u20134 distinct public HTTPS URLs (1024 characters each), for unauthenticated GET payment challenges. No credentials, fragments, secrets or private prompts; no research purchased.",
              "maxLength": 4114,
              "type": "string"
            }
          },
          "required": [
            "urls"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

This page as JSON