Roundhouse AI

Transaction Lookup

Look up a transaction on Base by hash. POST {"hash":"0x..."} and receive its status, block number, from and to addresses, value, gas used and effective gas price. Returns a clear not-found rather than an empty object when the hash is unknown.

MediaLiveeip155:8453Exactvia cdp
https://x402-echo-service.onrender.com/chain/tx
TransactionReceiptBaseOnchainLookup
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 26 snapshots so far.
$4.33
Verified settled volume
236 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-30 15:19Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x9Cc774A8eD49d89cBA1A288F4a050B8F7FbA77EE

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.

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0x9Cc7…A77EE. The signed payment is good for 5 minutes.

Paid to
0x9Cc7…A77EE
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
1000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x9Cc774A8eD49d89cBA1A288F4a050B8F7FbA77EE",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "hash": "0x962895f4b604ce745b6cd76e588d62fcf4fb59f9d6e67d0a17a7769f6ab15e4e"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "from": "0x368C…9716",
          "hash": "0x9628…5e4e",
          "found": true,
          "value": "0",
          "status": "success",
          "gasUsed": "64210",
          "blockNumber": 34500000
        }
      }
    },
    "tags": [
      "transaction",
      "receipt",
      "base",
      "onchain",
      "lookup"
    ],
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input",
        "output"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "bodyType",
            "body",
            "method"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "hash"
              ],
              "properties": {
                "hash": {
                  "type": "string",
                  "description": "32-byte transaction hash."
                }
              },
              "additionalProperties": false
            },
            "type": {
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json"
              ]
            }
          }
        },
        "output": {
          "type": "object",
          "required": [
            "type",
            "example"
          ],
          "properties": {
            "type": {
              "const": "json"
            },
            "example": {
              "type": "object",
              "required": [
                "hash",
                "found"
              ],
              "properties": {
                "to": {
                  "type": "string"
                },
                "from": {
                  "type": "string"
                },
                "hash": {
                  "type": "string"
                },
                "found": {
                  "type": "boolean"
                },
                "value": {
                  "type": "string"
                },
                "status": {
                  "type": "string"
                },
                "gasUsed": {
                  "type": "string"
                },
                "blockNumber": {
                  "type": "integer"
                }
              }
            }
          }
        }
      }
    },
    "summary": "Status, block, gas and transfer details for a Base transaction.",
    "category": "Infra",
    "coverImage": "https://x402-echo-service.onrender.com/icon.png",
    "serviceName": "Transaction Lookup"
  }
}

Provenance

Seen in the source catalog
2026-08-30 15:19Z
Last indexed by Roundhouse
2026-09-25 12:10Z
Last enriched (probe, favicon, geo)
2026-09-22 00:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 405
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. 26 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 Transaction Lookup 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=Transaction%20Lookup'
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-echo-service.onrender.com/chain/tx, 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.