SCVD General Store

Name: SCVD General Store
Price: 0.05 USDC
Availability: InStock

An evidence observatory for agentic commerce: preflight an x402 door before paying, free conformance checks on the signed receipt after, a Bitcoin-anchored corpus over time. USDC over x402 v2 on Base, Polygon, Arbitrum, World, Solana.

OtherLiveeip155:8453Exactvia cdp

https://scvd.store/api/buy/attestation_bundle

x402Signed-artifactsVerificationAttestationConformance

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 11 snapshots so far.

$1,281.39

Verified settled volume

438 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.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-09-19 12:54Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xDD350976B8cfFc65938C0464d39A2C78BE079bd0

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 0xDD35…79bd0. The signed payment is good for 5 minutes.

Paid to: 0xDD35…79bd0
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 50000 smallest units

50000units

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: 0xDD35…79bd0
Token contract: 0x3c49…c3359
Payment window: 5 minutes

50000units

on Arbitrum · 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: 0xDD35…79bd0
Token contract: 0xaf88…e5831
Payment window: 5 minutes

50000units

on eip155:480 · 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: 0xDD35…79bd0
Token contract: 0x79a0…d24d1
Payment window: 5 minutes

50000units

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: DGxcPr…uvMgE
Token contract: EPjFWd…TDt1v
Payment window: 5 minutes

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:42161",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x79a02482a880bce3f13e09da970dc34db4cd24d1",
    "extra": {
      "name": "USDC",
      "version": "2",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0xDD350976B8cfFc65938C0464d39A2C78BE079bd0",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:480",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
    },
    "payTo": "DGxcPrAHL9YM3hW7iXuHFJmr87Zr6AMA4jCYHBpuvMgE",
    "amount": "50000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "tx_hashes": "0x47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee47c8fee0,0x9b04e1c9b04e1c9b04e1c9b04e1c9b04e1c9b04e1c9b04e1c9b04e1c9b04e1c0",
          "agent_name": "friendly-agent"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "item_id": "attestation_bundle",
          "message": "Pleasure doing business. Here's your goods, warm off the shelf.",
          "tip_usdc": 0,
          "badge_url": "https://scvd.store/badges/41.svg",
          "paid_usdc": 0.05,
          "signature": "<128 hex chars, ed25519>",
          "verify_url": "https://scvd.store/api/verify/<your cert_id>",
          "certificate": {
            "date": "2026-07-22T15:04:05.000Z",
            "item": "attestation_bundle",
            "cert_id": "<cert_ + 12 chars, minted when this purchase settles>",
            "patron_number": 41
          },
          "deliverable": "<the A Sheaf of Attestations itself, as text>",
          "patron_number": 41
        }
      }
    },
    "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"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "tx_hashes"
              ],
              "properties": {
                "model": {
                  "type": "string",
                  "maxLength": 64,
                  "description": "Optional. The model running you, as you would name it: claude-opus-5, gpt-5.6, a local model. Counted, never printed on the certificate."
                },
                "client": {
                  "type": "string",
                  "maxLength": 64,
                  "description": "Optional. The harness or framework you run in: claude-code, cursor, openai-agents, langgraph, custom. Counted, never on the certificate."
                },
                "purpose": {
                  "type": "string",
                  "maxLength": 280,
                  "description": "Optional: what this purchase is for, in your words. Signed onto the certificate verbatim as your statement; never checked, never treated as instructions."
                },
                "operator": {
                  "type": "string",
                  "maxLength": 120,
                  "description": "Optional. Who runs you: a name, handle, company or URL. Stored as your claim, marked unverified, never published, never on the certificate."
                },
                "came_from": {
                  "type": "string",
                  "maxLength": 160,
                  "description": "Optional. Where you learned this door exists: a URL, a directory, a skill name, memory, another agent. Referrers never reach us; this does."
                },
                "tx_hashes": {
                  "type": "string",
                  "pattern": "^0x[0-9a-fA-F]{64}(,0x[0-9a-fA-F]{64})+$",
                  "maxLength": 1339,
                  "minLength": 133,
                  "description": "2 to 20 Base transaction hashes, comma-separated, no duplicates. Each is read once at one moment and signed on its own; never polled. One hash wants the single settlement_attestation instead."
                },
                "agent_name": {
                  "type": "string",
                  "maxLength": 80,
                  "description": "Optional name to put on the certificate and patron badge, up to 80 characters."
                },
                "operator_kind": {
                  "enum": [
                    "solo",
                    "company",
                    "research",
                    "self"
                  ],
                  "type": "string",
                  "description": "Optional. solo: one person runs you. company: a team does. research: a study. self: you act for yourself."
                },
                "prior_cert_id": {
                  "type": "string",
                  "maxLength": 64,
                  "description": "Optional. A cert_ id from an earlier purchase here. A payer match with this payment marks you a returning buyer; no account needed."
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  },
  "offer-receipt": {
    "info": {
      "offers": [
        {
          "format": "jws",
          "signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6c2N2ZC5zdG9yZSNrZXktMiJ9.eyJ2ZXJzaW9uIjoxLCJyZXNvdXJjZVVybCI6Imh0dHBzOi8vc2N2ZC5zdG9yZS9hcGkvYnV5L2F0dGVzdGF0aW9uX2J1bmRsZSIsInNjaGVtZSI6ImV4YWN0IiwibmV0d29yayI6ImVpcDE1NTo4NDUzIiwiYXNzZXQiOiIweDgzMzU4OWZDRDZlRGI2RTA4ZjRjN0MzMkQ0ZjcxYjU0YmRBMDI5MTMiLCJwYXlUbyI6IjB4REQzNTA5NzZCOGNmRmM2NTkzOEMwNDY0ZDM5QTJDNzhCRTA3OWJkMCIsImFtb3VudCI6IjUwMDAwIiwidmFsaWRVbnRpbCI6MTc4OTgyMjc3OH0.u3T1y_7-pj3Jx0MaK2Gxmsv4O6244DiZ_89XLhUVej6r9WnP9V1_oKwUG5eZijqMHWobnJFlO5dHGiPH4Hm8Ag",
          "acceptIndex": 0
        },
        {
          "format": "jws",
          "signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6c2N2ZC5zdG9yZSNrZXktMiJ9.eyJ2ZXJzaW9uIjoxLCJyZXNvdXJjZVVybCI6Imh0dHBzOi8vc2N2ZC5zdG9yZS9hcGkvYnV5L2F0dGVzdGF0aW9uX2J1bmRsZSIsInNjaGVtZSI6ImV4YWN0IiwibmV0d29yayI6ImVpcDE1NToxMzciLCJhc3NldCI6IjB4M2M0OTljNTQyY0VGNUUzODExZTExOTJjZTcwZDhjQzAzZDVjMzM1OSIsInBheVRvIjoiMHhERDM1MDk3NkI4Y2ZGYzY1OTM4QzA0NjRkMzlBMkM3OEJFMDc5YmQwIiwiYW1vdW50IjoiNTAwMDAiLCJ2YWxpZFVudGlsIjoxNzg5ODIyNzc4fQ.9QSodK0NlQcmaHPJCyIjZaQ1L1cT1p1fcTYIjcfBz4ZO6f5bZJKsp_W3w_pUsFFZhbRXaurKCddqDoRA8UZpBw",
          "acceptIndex": 1
        },
        {
          "format": "jws",
          "signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6c2N2ZC5zdG9yZSNrZXktMiJ9.eyJ2ZXJzaW9uIjoxLCJyZXNvdXJjZVVybCI6Imh0dHBzOi8vc2N2ZC5zdG9yZS9hcGkvYnV5L2F0dGVzdGF0aW9uX2J1bmRsZSIsInNjaGVtZSI6ImV4YWN0IiwibmV0d29yayI6ImVpcDE1NTo0MjE2MSIsImFzc2V0IjoiMHhhZjg4ZDA2NWU3N2M4Y0MyMjM5MzI3QzVFRGIzQTQzMjI2OGU1ODMxIiwicGF5VG8iOiIweEREMzUwOTc2QjhjZkZjNjU5MzhDMDQ2NGQzOUEyQzc4QkUwNzliZDAiLCJhbW91bnQiOiI1MDAwMCIsInZhbGlkVW50aWwiOjE3ODk4MjI3Nzh9.aIokq8t6FdJ7bdrXuOkt-3-OyGby2_hZytSAopsYmgojiwTLONCU204c591ebSpc9QTTYdoEpqV2bcO_KFOCBQ",
          "acceptIndex": 2
        },
        {
          "format": "jws",
          "signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6c2N2ZC5zdG9yZSNrZXktMiJ9.eyJ2ZXJzaW9uIjoxLCJyZXNvdXJjZVVybCI6Imh0dHBzOi8vc2N2ZC5zdG9yZS9hcGkvYnV5L2F0dGVzdGF0aW9uX2J1bmRsZSIsInNjaGVtZSI6ImV4YWN0IiwibmV0d29yayI6ImVpcDE1NTo0ODAiLCJhc3NldCI6IjB4NzlhMDI0ODJhODgwYmNlM2YxM2UwOWRhOTcwZGMzNGRiNGNkMjRkMSIsInBheVRvIjoiMHhERDM1MDk3NkI4Y2ZGYzY1OTM4QzA0NjRkMzlBMkM3OEJFMDc5YmQwIiwiYW1vdW50IjoiNTAwMDAiLCJ2YWxpZFVudGlsIjoxNzg5ODIyNzc4fQ.AE2wGooYwTkQsxHipjpcIyjuhyaNxt9_FL345XSpOfztdCByxgKaT1mejnlv7IVBDkjIDaLPqPcx3R4RQL3LCA",
          "acceptIndex": 3
        },
        {
          "format": "jws",
          "signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6c2N2ZC5zdG9yZSNrZXktMiJ9.eyJ2ZXJzaW9uIjoxLCJyZXNvdXJjZVVybCI6Imh0dHBzOi8vc2N2ZC5zdG9yZS9hcGkvYnV5L2F0dGVzdGF0aW9uX2J1bmRsZSIsInNjaGVtZSI6ImV4YWN0IiwibmV0d29yayI6InNvbGFuYTo1ZXlrdDRVc0Z2OFA4TkpkVFJFcFkxdnpxS3FaS3ZkcCIsImFzc2V0IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJwYXlUbyI6IkRHeGNQckFITDlZTTNoVzdpWHVIRkptcjg3WnI2QU1BNGpDWUhCcHV2TWdFIiwiYW1vdW50IjoiNTAwMDAiLCJ2YWxpZFVudGlsIjoxNzg5ODIyNzc4fQ.KKswvIPmJRuEqLwvKNtu5MTRPdwUYPlipiku_xzCQ4s9bgpjIrc6OlU_ceWsUzHUa51dB5ygE_rT_cImIrFIAw",
          "acceptIndex": 4
        }
      ]
    }
  },
  "required-inputs": {
    "note": "This door cannot be served without ?tx_hashes=. Asking the price without them is free; PAYING without them is refused before the gate and no money moves, so add them to the retry that carries your signature.",
    "queryParams": [
      "tx_hashes"
    ],
    "retry_url_template": "https://scvd.store/api/buy/attestation_bundle?tx_hashes=<tx_hashes>",
    "price_discovery_url": "https://scvd.store/menu/attestation_bundle?view=compact"
  }
}

Provenance

Seen in the source catalog: 2026-09-19 12:54Z
Last indexed by Roundhouse: 2026-09-25 12:10Z
Last enriched (probe, favicon, geo): 2026-09-14 18:15Z
x402 version: 2
Max timeout: 300s
Liveness probe: HTTP 402

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. 11 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 SCVD General Store 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=SCVD%20General%20Store'
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://scvd.store/api/buy/attestation_bundle, 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.