Roundhouse

x402-seller-0ay3.onrender.com

Wikipedia article summary (extract, short description, thumbnail image, canonical link) for a given title — CC BY-SA content, attribution included in every response. Parameters: ?title=<exact article title> (e.g. Bitcoin), ?lang=<language code> (default en).

SearchLiveeip155:8453Exactvia cdp
https://x402-seller-0ay3.onrender.com/api/wiki/summary
Calls · 30d
5→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 23 snapshots so far.
$2.37
Verified settled volume
273 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
5
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-02 17:35Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x5c3DB195a38f39074d8c891741A82f6D8f2A16Cc

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.

0.005USDC≈ $0.005 USD
on Base · exact scheme

Pay 0.005 USDC on Base to 0x5c3D…A16Cc. The signed payment is good for 5 minutes.

Paid to
0x5c3D…A16Cc
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
5000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x5c3DB195a38f39074d8c891741A82f6D8f2A16Cc",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "lang": "en",
          "title": "Bitcoin"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "url": "https://en.wikipedia.org/wiki/Bitcoin",
          "title": "Bitcoin",
          "extract": "Bitcoin is the first decentralized cryptocurrency...",
          "fetched_at": "2026-09-01T12:00:00.000Z",
          "attribution": {
            "source": "Wikipedia contributors",
            "license": "CC BY-SA 4.0",
            "license_url": "https://creativecommons.org/licenses/by-sa/4.0/"
          },
          "description": "Decentralized digital currency",
          "thumbnail_url": "https://upload.wikimedia.org/..."
        }
      }
    },
    "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": [
                "title"
              ],
              "properties": {
                "lang": {
                  "type": "string",
                  "description": "Wikipedia language code (e.g. en, fr, de). Default: en."
                },
                "title": {
                  "type": "string",
                  "description": "Exact Wikipedia article title (case-sensitive for some words)."
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-02 17:35Z
Last indexed by Roundhouse
2026-09-24 09:30Z
Last enriched (probe, favicon, geo)
2026-09-10 10:15Z
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. 23 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 x402-seller-0ay3.onrender.com 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-seller-0ay3.onrender.com'
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-seller-0ay3.onrender.com/api/wiki/summary, 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.