Roundhouse AI

api.datapackvibe.com

Explain an EIP-712 typed-data payload before you sign it - what the signature authorises, in plain English, plus what the payload does not tell you. No chain lookup.

Dataoffline · HTTP 530eip155:8453Exactvia cdp
https://api.datapackvibe.com/sign/explain
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far.
$0.59
Verified settled volume
4 settlements proven x402 by their on-chain EIP-3009 marker.
$0.030
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 2026-08-29 19:33Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x93a2d00eb7b4cdd6b0ed71ef9d696ddf3009ae90

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.

0.03USDC≈ $0.03 USD
on Base · exact scheme

Pay 0.03 USDC on Base to 0x93a2…9ae90. The signed payment is good for 5 minutes.

Paid to
0x93a2…9ae90
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
30000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x93a2d00eb7b4cdd6b0ed71ef9d696ddf3009ae90",
    "amount": "30000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "types": {
            "Permit": [
              {
                "name": "owner",
                "type": "address"
              },
              {
                "name": "spender",
                "type": "address"
              },
              {
                "name": "value",
                "type": "uint256"
              },
              {
                "name": "nonce",
                "type": "uint256"
              },
              {
                "name": "deadline",
                "type": "uint256"
              }
            ]
          },
          "domain": {
            "name": "USD Coin",
            "chainId": 1,
            "version": "2",
            "verifyingContract": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
          },
          "message": {
            "nonce": "0",
            "owner": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
            "value": "115792089237316195423570985008687907853269984665640564039457584007913129639935",
            "spender": "0x1111111254eeb25477b68fb85ed929f73a960582",
            "deadline": "1780000000"
          },
          "primaryType": "Permit"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "flags": [
            "The value is 2^256-1, an unlimited approval - the spender can move any amount, now or later."
          ],
          "fields": {
            "spender": "0x1111111254eeb25477b68fb85ed929f73a960582",
            "deadline": "1780000000",
            "value_base_units": "115792089237316195423570985008687907853269984665640564039457584007913129639935"
          },
          "authorises": "Signing this lets 0x11111112...960582 move USD Coin out of your wallet on your behalf, without a further transaction from you.",
          "unresolved": [
            "whether the spender contract is one you trust",
            "token decimals"
          ],
          "primary_type": "Permit"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "properties": {}
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-29 19:33Z
Last indexed by Roundhouse
2026-08-31 00:50Z
Last enriched (probe, favicon, geo)
2026-09-21 01:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 530
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. 3 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 api.datapackvibe.com 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=api.datapackvibe.com'
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://api.datapackvibe.com/sign/explain, 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.