Roundhouse AI

chainray.online

ChainRay /mev-detect

OtherLiveeip155:8453Exactvia facilitator:payAI
https://chainray.online/mev-detect/:var1
Settlements · 30d
551↑ 40%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$9.79
Verified settled volume
1,027 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
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
0xeF0d99f3Ae2927A4ba2A6E794Fb849BaeF8B5c11

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": "0xeF0d99f3Ae2927A4ba2A6E794Fb849BaeF8B5c11",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "",
      "resource": "https://chainray.online/mev-detect/:var1",
      "description": "ChainRay /mev-detect",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "pathParams": {
            "var1": ":var1"
          },
          "queryParams": {
            "chain": "base",
            "txHash": "0x1234567890abcdef"
          }
        },
        "_jsonSchema": {
          "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"
                },
                "pathParams": {
                  "type": "object"
                },
                "queryParams": {
                  "type": "object",
                  "required": [
                    "txHash"
                  ],
                  "properties": {
                    "chain": {
                      "type": "string",
                      "description": "Blockchain network"
                    },
                    "txHash": {
                      "type": "string",
                      "description": "Transaction hash"
                    }
                  }
                }
              },
              "additionalProperties": false
            }
          }
        }
      },
      "maxAmountRequired": "20000",
      "maxTimeoutSeconds": 300
    }
  ],
  "x402Version": 1
}

Accepts

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

0.02USDC≈ $0.02 USD
on Base · exact scheme

Pay 0.02 USDC on Base to 0xeF0d…B5c11. The signed payment is good for 5 minutes.

Paid to
0xeF0d…B5c11
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
20000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xeF0d99f3Ae2927A4ba2A6E794Fb849BaeF8B5c11",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog
2026-08-28 13:15Z
Last indexed by Roundhouse
2026-09-24 15:45Z
Last enriched (probe, favicon, geo)
2026-09-14 22:16Z
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

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 chainray.online 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=chainray.online'
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://chainray.online/mev-detect/:var1, 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.