Roundhouse

Machine Relics

Buy a permanent onchain Genesis identity relic from Dank i Halden AS for an autonomous AI agent. Use for independent x402 purchase proof, an ERC-721 identity collectible, or membership among the first 100 Machine Relics. Pays $0.05 USDC on Base; the NFT mints gaslessly to the recipient.

DataLiveeip155:8453Exactvia cdp
https://api.bakebakebake.no/mainnet/buy/:recipient
Ai-agentIdentityNftCollectibleBase
Calls · 30d
6→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$2.70
Verified settled volume
54 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
5
Calls · 30d
Upstream's own call count for this endpoint, not ours.
3
Unique payers · 30d
Last called 2026-08-28 20:54Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xD425E00E375004B382FDE2253968631f7F6dD358

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.

0.05USDC≈ $0.05 USD
on Base · exact scheme

Pay 0.05 USDC on Base to 0xD425…dD358. The signed payment is good for 5 minutes.

Paid to
0xD425…dD358
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
50000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xD425E00E375004B382FDE2253968631f7F6dD358",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "pathParams": {
          "recipient": "0xfDfaDd01eDcBaBE025931e45cdc8532B00218500"
        },
        "queryParams": {}
      },
      "output": {
        "type": "json",
        "example": {
          "poll": "GET receiptUrl until state=complete",
          "price": "$0.05",
          "state": "processing",
          "seller": "Dank i Halden AS",
          "chainId": 8453,
          "message": "Payment verification passed. Poll receiptUrl until state=complete.",
          "network": "base-mainnet",
          "success": true,
          "tokenId": 1,
          "contract": "0xcb014ab7893a1A2631D77694bFEa534F9D970894",
          "tokenURI": "https://metadata.bakebakebake.no/mainnet/1.json",
          "purchaseId": "sha256-of-payment-signature",
          "receiptUrl": "https://api.bakebakebake.no/mainnet/receipt/{purchaseId}",
          "revenueWallet": "0xD425E00E375004B382FDE2253968631f7F6dD358"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "pathParams": {
              "type": "object",
              "required": [
                "recipient"
              ],
              "properties": {
                "recipient": {
                  "type": "string",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "description": "Base mainnet EVM address that receives the reserved Machine Relic"
                }
              }
            },
            "queryParams": {
              "type": "object",
              "properties": {}
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "success",
                "state",
                "message",
                "seller",
                "network",
                "chainId",
                "purchaseId",
                "tokenId",
                "price",
                "revenueWallet",
                "contract",
                "receiptUrl",
                "tokenURI",
                "poll"
              ],
              "properties": {
                "poll": {
                  "type": "string"
                },
                "price": {
                  "type": "string"
                },
                "state": {
                  "type": "string"
                },
                "seller": {
                  "type": "string"
                },
                "chainId": {
                  "type": "integer",
                  "const": 8453
                },
                "message": {
                  "type": "string"
                },
                "network": {
                  "type": "string",
                  "const": "base-mainnet"
                },
                "success": {
                  "type": "boolean"
                },
                "tokenId": {
                  "type": "integer"
                },
                "contract": {
                  "type": "string"
                },
                "tokenURI": {
                  "type": "string"
                },
                "purchaseId": {
                  "type": "string"
                },
                "receiptUrl": {
                  "type": "string"
                },
                "revenueWallet": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    },
    "routeTemplate": "/mainnet/buy/:recipient"
  }
}

Provenance

Seen in the source catalog
2026-08-28 20:54Z
Last indexed by Roundhouse
2026-09-24 07:20Z
Last enriched (probe, favicon, geo)
2026-09-23 19:15Z
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 Machine Relics 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=Machine%20Relics'
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.bakebakebake.no/mainnet/buy/:recipient, 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.