Roundhouse AI

what-am-i-signing

Deploy serverless functions globally in seconds. No cold starts, 330+ cities, infinite concurrency, and pay only for CPU time. Support for JavaScript, TypeScript, Python, and Rust.

InferenceLiveeip155:8453Exactvia cdp
https://x402-store.dgdb.workers.dev/v1/sign-decode
SecurityWalletSignaturePermit2Evm
Calls · 30d
2↑ 27%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$4.93
Verified settled volume
327 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
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.
2
Unique payers · 30d
Last called 2026-09-14 19:49Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xD617a7145ca56E3ed58d639F9DEC6999B22441eE

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.

0.005USDC≈ $0.005 USD
on Base · exact scheme

Pay 0.005 USDC on Base to 0xD617…441eE. The signed payment is good for 5 minutes.

Paid to
0xD617…441eE
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
5000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xD617a7145ca56E3ed58d639F9DEC6999B22441eE",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "domain": {
            "name": "Permit2",
            "chainId": 8453,
            "verifyingContract": "0x000000000022D473030F116dDEE9F6B43aC78BA3"
          },
          "message": {
            "details": {
              "nonce": "0",
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "amount": "1461501637330902918203684832716283019655932542975",
              "expiration": "1781176678"
            },
            "spender": "0x66a9893cC07D91D95644AEDD05D03f95e1dBA8Af",
            "sigDeadline": "1749722278"
          },
          "primaryType": "PermitSingle"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "amount": "unlimited",
          "intent": "grant_allowance",
          "spender": "0x66a9893cC07D91D95644AEDD05D03f95e1dBA8Af",
          "standard": "Permit2-AllowanceTransfer (PermitSingle)",
          "confidence": 1,
          "expires_at": "2026-07-12T11:17:58Z",
          "risk_flags": [
            "unlimited_allowance"
          ],
          "action_hint": "ask_for_confirmation",
          "spender_known": "Uniswap Universal Router v2"
        }
      }
    },
    "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": {
              "type": "object",
              "properties": {
                "domain": {
                  "type": "object"
                },
                "message": {
                  "type": "object"
                },
                "calldata": {
                  "type": "string"
                },
                "primaryType": {
                  "type": "string"
                }
              },
              "description": "EIP-712 typed data to decode (domain/primaryType/message), or {\"calldata\": \"0x...\"} for raw ERC-20 approve calldata."
            },
            "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
2026-09-14 19:49Z
Last indexed by Roundhouse
2026-09-25 12:50Z
Last enriched (probe, favicon, geo)
2026-09-14 12:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 404
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. 30 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 what-am-i-signing 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=what-am-i-signing'
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-store.dgdb.workers.dev/v1/sign-decode, 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.