Roundhouse AI

twin.unykorn.org

UnyKorn LLC licenses issuance software and rails. The custodian you name holds the keys. Cross-chain, where used, is CCT on CCIP. Not a broker-dealer.

Infraoffline · HTTP 530eip155:8453Exactvia cdp
https://twin.unykorn.org/prove
InfraAiAgentsGenesis402Unykorn
Calls · 30d
4
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far.
$4.02
Verified settled volume
197 settlements proven x402 by their on-chain EIP-3009 marker.
$0.250
Listed price
As published in the catalog. Always read the live 402 before paying.
4
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-21 00:01Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB

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.

0.25USDC≈ $0.25 USD
on Base · exact scheme

Pay 0.25 USDC on Base to 0x7d9a…156DB. The signed payment is good for 5 minutes.

Paid to
0x7d9a…156DB
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
250000 smallest units
50000units
on xrpl:mainnet · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
rsJ3PG…u6TDC
Token contract
XRP
Payment window
5 minutes
250000units
on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x7d9a…156DB
Token contract
0x3c49…c3359
Payment window
5 minutes
250000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
FN9TC2…XLwY1
Token contract
EPjFWd…TDt1v
Payment window
5 minutes
2500000units
on stellar:pubnet · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
GBYLA6…HJEPI
Token contract
USDC
Payment window
5 minutes
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB",
    "amount": "250000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "XRP",
    "extra": {
      "unit": "drops",
      "nonce": "1789948905.dc953bbbb2c8cf1ac5db6761.189338bc1f09cb6bc5909725e339b8ae",
      "pay_first": true,
      "memo_sha256": "a133fc0e1c87b78f4588d402b4a2fd85ab5d7418a9716875951a9ab542ef4d1f",
      "instructions": "Send the payment with a Memo whose MemoData = memo_sha256 (hex). Then present X-PAYMENT {\"network\":\"xrpl:mainnet\",\"txHash\":\"<hex>\",\"nonce\":\"<nonce>\"}.",
      "nonce_expires_at": 1789950705
    },
    "payTo": "rsJ3PGGDH4vPpedjfVRe9YKTCf9BWu6TDC",
    "price": "0.05",
    "amount": "50000",
    "scheme": "exact",
    "network": "xrpl:mainnet",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB",
    "amount": "250000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxAmountRequired": "250000",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AuFqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
    },
    "payTo": "FN9TC2ScDFAX2zPK5KKhHSv6L9gfTva8LCUq1AjXLwY1",
    "amount": "250000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxAmountRequired": "250000",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "USDC",
    "extra": {
      "unit": "stroops (7 decimals)",
      "nonce": "1789948905.dc953bbbb2c8cf1ac5db6761.189338bc1f09cb6bc5909725e339b8ae",
      "pay_first": true,
      "memo_sha256": "a133fc0e1c87b78f4588d402b4a2fd85ab5d7418a9716875951a9ab542ef4d1f",
      "instructions": "Send the payment with memo type HASH = memo_sha256 (32 bytes hex). Then present X-PAYMENT {\"network\":\"stellar:pubnet\",\"txHash\":\"<hex>\",\"nonce\":\"<nonce>\"}.",
      "nonce_expires_at": 1789950705
    },
    "payTo": "GBYLA6VHX4UWIFEEC2KAOJK57RUKIR2CKO7TGVRDWMG2A3B2W4ZHJEPI",
    "price": "0.25",
    "proof": "send with memo type HASH = the memo_sha256 from this 402, then present X-PAYMENT {\"network\":\"stellar:pubnet\",\"txHash\":\"<hex>\",\"nonce\":\"<nonce>\"}",
    "amount": "2500000",
    "issuer": "GA5ZSEJYB37JRC5AVCIA5MOP4RHTM335X2KGX3IHOJAPP5RE34K4KZVN",
    "scheme": "exact",
    "network": "stellar:pubnet",
    "pay_first": true,
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "params": {
            "claim": "invoice 1042 existed before the dispute",
            "sha256": "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824",
            "subject": "invoice-1042"
          }
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "ok": true,
          "type": "prove",
          "verify": {
            "keys": "/prove/keys",
            "source": "https://github.com/FTHTrading/402-truth"
          },
          "receipt": {
            "tx_hash": "0x<64hex>",
            "amount_usd": 0.25,
            "receipt_id": "g402-<16hex>"
          },
          "proofReceipt": {
            "issuer": {
              "alg": "ed25519",
              "keyId": "g402-key-<16hex>"
            },
            "receiptId": "g402_rcpt_<12hex>",
            "truthLabels": [
              "ATTESTED",
              "VERIFIED"
            ],
            "receiptVersion": "genesis402-receipt-v1"
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "params"
              ],
              "properties": {
                "params": {
                  "type": "object",
                  "properties": {
                    "text": {
                      "type": "string",
                      "maxLength": 16384
                    },
                    "claim": {
                      "type": "string",
                      "maxLength": 512
                    },
                    "sha256": {
                      "type": "string",
                      "pattern": "^[0-9a-f]{64}$"
                    },
                    "subject": {
                      "type": "string",
                      "maxLength": 200
                    }
                  }
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            }
          }
        },
        "output": {
          "type": "object"
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-21 00:01Z
Last indexed by Roundhouse
2026-09-24 13:10Z
Last enriched (probe, favicon, geo)
2026-09-17 02:15Z
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. 8 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 twin.unykorn.org 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=twin.unykorn.org'
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://twin.unykorn.org/prove, 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.