Roundhouse

TraceFast

Ethereum blocks, transactions, traces, tokens, validators and the TraceFast knowledge graph — 46 methods, paid per call over x402. No API key and no account.

DataLiveeip155:8453Exactvia cdp
https://mpp.tracefast.xyz/api/v1/chains/1/risk/blacklists/:address
BlockchainEthereumAddress-intelligenceLabelsEntities
Calls · 30d
2→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$6.40
Verified settled volume
113 settlements proven x402 by their on-chain EIP-3009 marker.
$0.100
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-12 09:46Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x2A65491E93Ad0d484b74405401A38e2E0E5EDd7e

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.

Accepts

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

0.1USDC≈ $0.1 USD
on Base · exact scheme

Pay 0.1 USDC on Base to 0x2A65…EDd7e. The signed payment is good for 5 minutes.

Paid to
0x2A65…EDd7e
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
100000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0x2A65491E93Ad0d484b74405401A38e2E0E5EDd7e",
    "amount": "100000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "pathParams": {
          "address": "0x8576acc5c05d6ce88f4e49bf65bdf0c62f91353c"
        },
        "queryParams": {}
      },
      "output": {
        "type": "json",
        "example": {
          "data": {
            "address": "0x8576acc5c05d6ce88f4e49bf65bdf0c62f91353c",
            "chainId": 1,
            "listedBy": [
              {
                "listed": true,
                "listCount": 1,
                "lastAction": "add",
                "tokenSymbol": "USDC",
                "unlistCount": 0,
                "authorityTier": "recognized_issuer",
                "lastEventKind": "membership",
                "lastEventName": "Blacklisted",
                "issuerContract": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48",
                "lastEventBlock": 14481178,
                "lastEventTxHash": "0x5906c3dac2d75f141b72baa61842a9881e9d31ee36f761ffc7059ffc86c7e452",
                "firstListedBlock": 14481178,
                "lastEventTimestamp": 1648558143
              },
              {
                "listed": true,
                "listCount": 1,
                "lastAction": "add",
                "tokenSymbol": "USDT",
                "unlistCount": 0,
                "authorityTier": "recognized_issuer",
                "lastEventKind": "membership",
                "lastEventName": "AddedBlackList",
                "issuerContract": "0xdac17f958d2ee523a2206206994597c13d831ec7",
                "lastEventBlock": 18750100,
                "lastEventTxHash": "0xdbd24a66f187242bf3a8f8ce4a50a4b9143889dc988c7113d2e1069165332534",
                "firstListedBlock": 18750100,
                "lastEventTimestamp": 1702142231
              }
            ],
            "enforcement": []
          }
        }
      }
    },
    "schema": {
      "properties": {
        "input": {
          "required": [
            "method"
          ],
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "pathParams": {
              "type": "object"
            }
          }
        }
      }
    },
    "routeTemplate": "/api/v1/chains/1/risk/blacklists/:address"
  },
  "offer-receipt": {
    "info": {
      "offers": [
        {
          "format": "jws",
          "signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6bXBwLnRyYWNlZmFzdC54eXojMjAyNi0xMCJ9.eyJhbW91bnQiOiIxMDAwMDAiLCJhc3NldCI6IjB4ODMzNTg5ZkNENmVEYjZFMDhmNGM3QzMyRDRmNzFiNTRiZEEwMjkxMyIsIm5ldHdvcmsiOiJlaXAxNTU6ODQ1MyIsInBheVRvIjoiMHgyQTY1NDkxRTkzQWQwZDQ4NGI3NDQwNTQwMUEzOGUyRTBFNUVEZDdlIiwicmVzb3VyY2VVcmwiOiJodHRwczovL21wcC50cmFjZWZhc3QueHl6L2FwaS92MS9jaGFpbnMvMS9yaXNrL2JsYWNrbGlzdHMvMHg4NTc2YWNjNWMwNWQ2Y2U4OGY0ZTQ5YmY2NWJkZjBjNjJmOTEzNTNjIiwic2NoZW1lIjoiZXhhY3QiLCJ2YWxpZFVudGlsIjoxNzkxNzk4NjY2LCJ2ZXJzaW9uIjoxfQ.Z_2a2EUr8061WrsuhcaqFbdNWXWD1eOd8mGccuQ5e_5VOX_QVrVfQLyOWzNd1EBvWRRLArwlA-KvNV8Y5BryBw",
          "acceptIndex": 0
        }
      ]
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "offers"
      ],
      "properties": {
        "offers": {
          "type": "array",
          "items": {
            "type": "object",
            "required": [
              "format",
              "signature"
            ],
            "properties": {
              "format": {
                "type": "string"
              },
              "payload": {
                "type": "object",
                "required": [
                  "version",
                  "resourceUrl",
                  "scheme",
                  "network",
                  "asset",
                  "payTo",
                  "amount"
                ],
                "properties": {
                  "asset": {
                    "type": "string"
                  },
                  "payTo": {
                    "type": "string"
                  },
                  "amount": {
                    "type": "string"
                  },
                  "scheme": {
                    "type": "string"
                  },
                  "network": {
                    "type": "string"
                  },
                  "version": {
                    "type": "integer"
                  },
                  "validUntil": {
                    "type": "integer"
                  },
                  "resourceUrl": {
                    "type": "string"
                  }
                }
              },
              "signature": {
                "type": "string"
              },
              "acceptIndex": {
                "type": "integer"
              }
            }
          }
        }
      }
    }
  },
  "tracefast-receipt": {
    "info": {
      "method": "risk-blacklist-status",
      "version": 1
    }
  }
}

Provenance

Seen in the source catalog
2026-10-12 09:46Z
Last indexed by Roundhouse
2026-10-26 17:50Z
Last enriched (probe, favicon, geo)
2026-10-01 13:45Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. 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 TraceFast 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=TraceFast'
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://mpp.tracefast.xyz/api/v1/chains/1/risk/blacklists/:address, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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