Roundhouse AI

x402.0xbs.org

0xBs public x402 demo — USDC on Base for agent-payable ESP32 hardware.

OtherLiveeip155:8453Exactvia facilitator:payAI
https://x402.0xbs.org/x402/demo
Settlements · 30d
2↓ 100%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$0.30
Verified settled volume
23 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
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
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x769e11Ed42F9b9CF19f0531d3E863B3f2C3fEE43

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.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "X-PAYMENT header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x769e11Ed42F9b9CF19f0531d3E863B3f2C3fEE43",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://x402.0xbs.org/x402/demo",
      "description": "0xBs public x402 demo. Settle 0.01 USDC on Base, then receive a receipt. Agent-payable ESP32 hardware is fulfilled through the 0xBs control plane after settlement.",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 60
    }
  ],
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "schema": {
            "type": "object",
            "properties": {}
          },
          "discoverable": true
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "asset": "USDC",
            "amount": "0.01",
            "message": "Payment accepted. This is the public x402 resource for 0xBs agent-payable hardware (ESP32, USDC on Base).",
            "network": "base",
            "service": "0xbs-x402-demo"
          }
        }
      },
      "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",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "schema": {
                "type": "object"
              },
              "headers": {
                "type": "object",
                "additionalProperties": {
                  "type": "string"
                }
              },
              "queryParams": {
                "type": "object",
                "additionalProperties": {
                  "type": "string"
                }
              },
              "discoverable": {
                "type": "boolean"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 1,
  "outputSchema": {
    "input": {
      "type": "http",
      "method": "GET",
      "schema": {
        "type": "object",
        "properties": {}
      },
      "discoverable": true
    },
    "output": {
      "type": "json",
      "example": {
        "ok": true,
        "asset": "USDC",
        "amount": "0.01",
        "message": "Payment accepted. This is the public x402 resource for 0xBs agent-payable hardware (ESP32, USDC on Base).",
        "network": "base",
        "service": "0xbs-x402-demo"
      }
    }
  }
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x769e…fEE43. The signed payment is good for 1 minute.

Paid to
0x769e…fEE43
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x769e11Ed42F9b9CF19f0531d3E863B3f2C3fEE43",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Provenance

Seen in the source catalog
2026-09-12 17:18Z
Last indexed by Roundhouse
2026-09-24 11:45Z
Last enriched (probe, favicon, geo)
2026-09-14 19:16Z
x402 version
2
Max timeout
60s
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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. 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 x402.0xbs.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=x402.0xbs.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://x402.0xbs.org/x402/demo, 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.