Roundhouse

89-116-220-218.sslip.io

No description published for this endpoint.

OtherLiveeip155:8453Exactvia facilitator:thirdweb
https://89-116-220-218.sslip.io/x402/preflight
Calls · 30d
3
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 8 snapshots so far.
$0.08
Verified settled volume
26 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
0x427F423908233DbCA2C51e4c6AE36D18f821641c

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": "PAYMENT-SIGNATURE header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x427F423908233DbCA2C51e4c6AE36D18f821641c",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://89-116-220-218.sslip.io/x402/preflight",
    "mimeType": "application/json",
    "description": "Pre-pay Check: Ed25519-signed, deterministic facts about another x402 endpoint before you pay it: challenge validity, reachability and latency, host listing count, payout wallet reuse across hosts, last-called and payer trend from daily Bazaar snapshots. Use it when choosing between paid endpoints. Signed facts you can verify against the published key, not ratings; facts only, no advice. Query: ?url=https://..."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "url": "https://x402.org/protected"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "facts": {
              "bazaar": {
                "listed": true,
                "available": true,
                "payer_trend": [
                  {
                    "calls30d": 17,
                    "snapshot": "2026-10-15",
                    "payers30d": 4
                  }
                ],
                "listed_payTo": [
                  "0x742d35cc6634c0532925a3b844bc454e4438f44e"
                ],
                "snapshot_date": "2026-10-15",
                "last_called_at": "2026-10-14T12:00:00Z",
                "host_listing_count": 3,
                "payout_wallet_reuse": {}
              },
              "schema": "prepay-check/v1",
              "target": "https://x402.org/protected",
              "challenge": {
                "valid": true,
                "accepts": [],
                "problems": []
              },
              "checked_at": "2026-10-15T00:00:00Z",
              "disclaimer": "Deterministic observations only. Not advice to pay, buy or sell.",
              "reachability": {
                "reachable": true,
                "latency_ms": 180,
                "http_status": 402
              }
            },
            "signature": {
              "alg": "Ed25519",
              "key_id": "72cb9da845cc948f",
              "value_b64": "base64 Ed25519 signature over the canonical facts",
              "signed_over": "canonical JSON of facts (sorted keys, no whitespace)",
              "public_key_b64": "C3wmUnTtL12LUfkfDCR0bIeUXjbfq+hde5OeQC+dUy0="
            }
          }
        }
      },
      "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"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "url"
                ],
                "properties": {
                  "url": {
                    "type": "string",
                    "format": "uri",
                    "description": "Full https URL of the x402 endpoint to check before paying it"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

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 0x427F…1641c. The signed payment is good for 2 minutes.

Paid to
0x427F…1641c
USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
10000 smallest units
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x427F423908233DbCA2C51e4c6AE36D18f821641c",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://89-116-220-218.sslip.io/x402/preflight",
    "description": "",
    "maxAmountRequired": "10000",
    "maxTimeoutSeconds": 120
  }
]

Provenance

Seen in the source catalog
2026-10-21 10:38Z
Last indexed by Roundhouse
2026-10-23 21:16Z
Last enriched (probe, favicon, geo)
2026-10-24 01:46Z
x402 version
1
Max timeout
120s
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. 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 89-116-220-218.sslip.io 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=89-116-220-218.sslip.io'
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://89-116-220-218.sslip.io/x402/preflight, 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://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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