NFT Insight (Scam Check, Owners)

Name: NFT Insight (Scam Check, Owners)
Price: 0.015 USDC
Availability: InStock

35 APIs and 182 operations your agent can buy one call at a time. $0.01–$0.05 per call in USDC on base via x402. No API key, no account, no subscription.

OtherLiveeip155:8453Exactvia cdp

https://x402.professorsausages.com/nft/:chain/wallet/:address/collections/live

NftEthereumScam-checkOwnershipCollections

Settlements · 30d

118↑ 538%

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.

$4.32

Verified settled volume

328 settlements proven x402 by their on-chain EIP-3009 marker.

$0.015

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-07-20 23:46Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x54ebFCF3870439B9db62381848c5DabC05c70d5B

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x54ebFCF3870439B9db62381848c5DabC05c70d5B",
      "amount": "15000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://x402.professorsausages.com/nft/:chain/wallet/:address/collections/live",
    "tags": [
      "nft",
      "ethereum",
      "scam-check",
      "ownership",
      "collections"
    ],
    "mimeType": "application/json",
    "description": "Wallet collection rollup — always fetched fresh",
    "serviceName": "NFT Insight (Scam Check, Owners)"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET"
        },
        "output": {
          "type": "object",
          "required": [
            "chain",
            "wallet",
            "totalCount",
            "returned",
            "truncated",
            "spamCount",
            "collections",
            "freshness"
          ],
          "properties": {
            "chain": {
              "type": "string"
            },
            "wallet": {
              "type": "string"
            },
            "returned": {
              "type": "integer"
            },
            "freshness": {
              "type": "object",
              "required": [
                "tier",
                "max_age_seconds",
                "as_of"
              ],
              "properties": {
                "tier": {
                  "enum": [
                    "cached",
                    "live"
                  ],
                  "type": "string"
                },
                "as_of": {
                  "type": "string",
                  "description": "ISO timestamp of the upstream data capture."
                },
                "max_age_seconds": {
                  "type": "integer",
                  "description": "86400 on the cached tier, 0 on live."
                }
              }
            },
            "spamCount": {
              "type": "integer"
            },
            "truncated": {
              "type": "boolean"
            },
            "totalCount": {
              "type": [
                "integer",
                "null"
              ]
            },
            "collections": {
              "type": "array",
              "items": {
                "type": "object",
                "description": "address, name, symbol, tokenType, totalBalance, numDistinctTokensOwned, isSpam, floorPrice."
              }
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object"
          },
          "output": {
            "type": "object"
          }
        }
      },
      "category": "nft",
      "routeTemplate": "https://x402.professorsausages.com/nft/:chain/wallet/:address/collections/live"
    },
    "sample": {
      "url": "https://x402.professorsausages.com/nft/sample",
      "hint": "A real cached response from this API (with its capture timestamp), free — judge the data quality before paying."
    },
    "catalog": {
      "message": "You called NFT Insight (Scam Check, Owners). Agents doing nft work commonly also use these — same pay-per-call model, each with a FREE real sample record (freeSample link):",
      "related": [
        {
          "call": "/token-safety?ref=xsell&v=related&from=nft",
          "name": "Token Safety Check",
          "summary": "On-chain token risk screening for agents",
          "freeSample": "/token-safety/sample?ref=xsell&v=related&from=nft"
        },
        {
          "call": "/address-screen?ref=xsell&v=related&from=nft",
          "name": "Address Risk Screen",
          "summary": "Crypto address risk screening for agents",
          "freeSample": "/address-screen/sample?ref=xsell&v=related&from=nft"
        },
        {
          "call": "/sanctions-screen?ref=xsell&v=related&from=nft",
          "name": "OFAC Sanctions Name Screen",
          "summary": "Fuzzy OFAC name screening for agents with compliance duties",
          "freeSample": "/sanctions-screen/sample?ref=xsell&v=related&from=nft"
        }
      ],
      "strategy": "related",
      "catalogUrl": "https://x402.professorsausages.com/?ref=402&v=related&from=nft"
    },
    "suggest": {
      "url": "https://x402.professorsausages.com/suggest",
      "hint": "Missing data you'd pay for? POST {want, would_pay_usd} — free. The most-requested datasets get built first."
    },
    "discount": {
      "off": "50%",
      "hint": "Send X-Intent: <40+ chars describing what you're building and what data you need> for 50% off this call.",
      "header": "X-Intent"
    }
  },
  "x402Version": 2
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.015USDC≈ $0.015 USD

on Base · exact scheme

Pay 0.015 USDC on Base to 0x54eb…70d5B. The signed payment is good for 1 minute.

Paid to: 0x54eb…70d5B
USD Coin contract: 0x8335…02913
Payment window: 1 minute
As published: 15000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x54ebFCF3870439B9db62381848c5DabC05c70d5B",
    "amount": "15000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET"
      },
      "output": {
        "type": "object",
        "required": [
          "chain",
          "wallet",
          "totalCount",
          "returned",
          "truncated",
          "spamCount",
          "collections",
          "freshness"
        ],
        "properties": {
          "chain": {
            "type": "string"
          },
          "wallet": {
            "type": "string"
          },
          "returned": {
            "type": "integer"
          },
          "freshness": {
            "type": "object",
            "required": [
              "tier",
              "max_age_seconds",
              "as_of"
            ],
            "properties": {
              "tier": {
                "enum": [
                  "cached",
                  "live"
                ],
                "type": "string"
              },
              "as_of": {
                "type": "string",
                "description": "ISO timestamp of the upstream data capture."
              },
              "max_age_seconds": {
                "type": "integer",
                "description": "86400 on the cached tier, 0 on live."
              }
            }
          },
          "spamCount": {
            "type": "integer"
          },
          "truncated": {
            "type": "boolean"
          },
          "totalCount": {
            "type": [
              "integer",
              "null"
            ]
          },
          "collections": {
            "type": "array",
            "items": {
              "type": "object",
              "description": "address, name, symbol, tokenType, totalBalance, numDistinctTokensOwned, isSpam, floorPrice."
            }
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object"
        },
        "output": {
          "type": "object"
        }
      }
    },
    "category": "nft",
    "routeTemplate": "https://x402.professorsausages.com/nft/:chain/wallet/:address/collections/live"
  },
  "sample": {
    "url": "https://x402.professorsausages.com/nft/sample",
    "hint": "A real cached response from this API (with its capture timestamp), free — judge the data quality before paying."
  },
  "catalog": {
    "message": "This endpoint is 1 of 22 pay-per-call APIs for agents — all same x402 payment + auth. Browse the full menu free (no payment) at the catalog URL; every API serves a free real sample record at /<api>/sample.",
    "strategy": "minimal",
    "catalogUrl": "https://x402.professorsausages.com/?ref=402&v=minimal&from=nft"
  },
  "suggest": {
    "url": "https://x402.professorsausages.com/suggest",
    "hint": "Missing data you'd pay for? POST {want, would_pay_usd} — free. The most-requested datasets get built first."
  },
  "discount": {
    "off": "50%",
    "hint": "Send X-Intent: <40+ chars describing what you're building and what data you need> for 50% off this call.",
    "header": "X-Intent"
  }
}

Provenance

Seen in the source catalog: 2026-07-20 23:46Z
Last indexed by Roundhouse: 2026-08-09 07:30Z
Last enriched (probe, favicon, geo): 2026-09-10 11:15Z
x402 version: 2
Max timeout: 60s
Liveness probe: HTTP 410

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service NFT Insight (Scam Check, Owners) and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=NFT%20Insight%20(Scam%20Check%2C%20Owners)'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://x402.professorsausages.com/nft/:chain/wallet/:address/collections/live, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.