[Staging] 17711 Ping

x402 client test and health check: pay, get an echo back plus the server pid

OtherUnknowneip155:84532Exactvia facilitator:payAI
x402-clientTestHealth-checkLatencyDiagnostic
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
–
Verified settled volume
0 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0020
Listed price
As published in the catalog. Always read the live 402 before paying.
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Calls · 30d
Upstream's own call count for this endpoint, not ours.
–
Unique payers · 30d
Never called
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Upstream on-chain volume
Reported by the source catalog.
Paid to
0xDEDf2238bf0F6Eea4aC52291B6D7265E8df89ED6

The wallet the 402 directs payment to. Its full payment record is on the merchant page.

Asset 0x036CbD53842c5426634e7929541eC2318f3dCF7e

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.

Recent payments · which agents last used it

Every indexed settlement paid to this service’s wallet, newest first. The index does not record which endpoint a payment was for, so if this wallet serves more than one endpoint, the rows include payments for the others. Paged up to the newest 5,000; the full history is on the merchant page.

Payer PayeeChainAmountx402RouteAgeTxn hash
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0xcc7e03…9e877c
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x7dc08e…ed43ba
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x0fd9bf…81ddc4
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0xfcd863…ae45ea
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x11138a…c13912
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0xc0d2d3…f37be6
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x6a03e3…0ba857
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x10663c…dd265c
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x39bb0c…94e235
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0xa58318…6d15ab
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0xb2b0e2…5f740c
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x0c4b7e…3ed209
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x1463ec…e52b3f
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x30d567…93272b
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0xcc2160…53d2df
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x7d8e8f…30df99
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0xfe4c33…6f3fc3
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x344098…2eb6db
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x54a537…c1a8ce
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x557a0f…c5813a
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x1e3fa7…6a6ddd
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0xd61ccf…6b5e70
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x0cb45f…d45db0
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0xa7c9d1…294159
0x03e8…d1c40xdedf…9ed6Base SepoliaBase Sepolia$0.00170%0xd407…f1bf83d ago0x44b67b…557bc0

Accepts

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

0.002USDC≈ $0.002 USD
on Base Sepolia · exact scheme

Pay 0.002 USDC on Base Sepolia to 0xDEDf…89ED6. The signed payment is good for 2 minutes.

USD Coin (Base Sepolia) contract
0x036C…dCF7e
Payment window
2 minutes
As published
2000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
    "extra": {
      "name": "USDC",
      "version": "2",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0xDEDf2238bf0F6Eea4aC52291B6D7265E8df89ED6",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:84532",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "echo": "string",
          "delay_ms": 0
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "pid": 0,
          "echo": "string",
          "pong": false
        }
      }
    },
    "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",
              "title": "PingRequest",
              "required": [
                "echo"
              ],
              "properties": {
                "echo": {
                  "type": "string",
                  "description": "Arbitrary text echoed back verbatim in the response's own `echo` field."
                },
                "delay_ms": {
                  "type": "integer",
                  "format": "uint64",
                  "default": 0,
                  "minimum": 0,
                  "description": "Testkit-only knob (not real business logic): lets a caller simulate a slow tool call, to\ncheck whether the server dispatches concurrent calls as independent tasks rather than\nserializing them."
                }
              }
            },
            "type": {
              "const": "http"
            },
            "method": {
              "const": "POST"
            },
            "bodyType": {
              "const": "json"
            }
          }
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "const": "json"
            },
            "example": {
              "type": "object",
              "title": "PingResult",
              "required": [
                "pong",
                "echo",
                "pid"
              ],
              "properties": {
                "pid": {
                  "type": "integer",
                  "format": "uint32",
                  "minimum": 0,
                  "description": "This process's OS pid -- proves which process instance actually answered (useful behind a\nload balancer fronting several instances of the same service)."
                },
                "echo": {
                  "type": "string",
                  "description": "Echoes the request's own `echo` field back verbatim."
                },
                "pong": {
                  "type": "boolean",
                  "description": "Always `true` -- a client can use this as a trivial liveness/reachability check."
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-09 11:22Z
Last indexed by Roundhouse
2026-10-11 04:46Z
Last enriched (probe, favicon, geo)
–
x402 version
2
Max timeout
120s
Liveness probe
Not probed
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

Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. 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 [Staging] 17711 Ping 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=%5BStaging%5D%2017711%20Ping'
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://staging.api.17711.xyz/registry/ping-service/v1/ping, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://preview.roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://preview.roundhouseai.io/skill.md first — it is the whole procedure.