Roundhouse

agent.connskill.com

Search research for AI agents: Local Market Check packages, domain ranking snapshots and keyword demand data. Also SMS verification, receive-only inboxes, social marketing and EU-hosted LLMs. Paid per call in USDC on Base. No account, no API key, no minimum.

OtherLiveeip155:8453Exactvia cdp
https://agent.connskill.com/v1/trust-check
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 snapshots so far.
$19.00
Verified settled volume
228 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-19 16:01Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x43B85AE58f0A2505c710Bc715d6f3EB16b1f63dE

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_required",
  "status": "payment_required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "service": "trust-check-v1",
        "version": "2"
      },
      "payTo": "0x43B85AE58f0A2505c710Bc715d6f3EB16b1f63dE",
      "amount": "50000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://agent.connskill.com/v1/trust-check",
      "description": "x402 seller trust check before you pay: probes the live 402, reads USDC inflow to payTo on Base, counts payers and flags self-dealing (operator paying itself) - verdict green/yellow/red with reasons and the window it could read",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "POST",
          "bodyType": "json",
          "bodyFields": {
            "origin": {
              "type": "string",
              "required": true,
              "description": "Bare host of the x402 service to check (no path, no query)"
            }
          }
        },
        "output": {
          "type": "object",
          "description": "x402 seller trust check before you pay: probes the live 402, reads USDC inflow to payTo on Base, counts payers and flags self-dealing (operator paying itself) - verdict green/yellow/red with reasons and the window it could read"
        }
      },
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 120
    }
  ],
  "service": {
    "mode": "live",
    "price": {
      "payTo": "0x43B85AE58f0A2505c710Bc715d6f3EB16b1f63dE",
      "amount": "0.05",
      "network": "eip155:8453",
      "currency": "USDC"
    },
    "serviceId": "trust-check-v1"
  },
  "howToPay": "Price: 0.05 USDC (Base), recipient 0x43B85AE58f0A2505c710Bc715d6f3EB16b1f63dE. Before transferring funds, check that the target accepts manual payment and that the token-paying EOA wallet can sign EIP-191 messages. Use a complete JSON POST body and only ref query parameters. After one transfer, POST /v1/payments/challenge with purpose purchase, the token payer address and the exact target method, public path including query, x-payment-tx header and complete JSON body. Sign its exact message; send the returned extensions.sign-in-with-x.info fields plus address, chainId eip155:8453, type eip191 and signature as base64 JSON in Sign-In-With-X on that same target request. The challenge and wallet proof are free. Standard-x402 first purchases keep their PAYMENT-SIGNATURE flow.",
  "resource": {
    "url": "https://agent.connskill.com/v1/trust-check",
    "mimeType": "application/json",
    "description": "x402 seller trust check before you pay: probes the live 402, reads USDC inflow to payTo on Base, counts payers and flags self-dealing (operator paying itself) - verdict green/yellow/red with reasons and the window it could read"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "origin": "agent.connskill.com"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "chain": {
              "payers": 3,
              "inflowUsdc": 6.87,
              "windowDays": 14,
              "selfDealingShare": 0.31,
              "payersSelfDealing": 1
            },
            "probe": {
              "payTo": "0x43B8...",
              "http_ms": 240,
              "network": "eip155:8453",
              "x402_valid": true,
              "x402Version": 2
            },
            "origin": "https://agent.connskill.com",
            "status": "delivered",
            "verdict": "green"
          }
        }
      },
      "schema": {
        "properties": {
          "input": {
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "origin"
                ],
                "properties": {
                  "origin": {
                    "type": "string",
                    "minLength": 4,
                    "description": "Bare host of the x402 service to check, e.g. agent.connskill.com"
                  }
                }
              }
            }
          },
          "output": {
            "properties": {
              "example": {
                "chain": {
                  "payers": 3,
                  "inflowUsdc": 6.87,
                  "windowDays": 14,
                  "selfDealingShare": 0.31,
                  "payersSelfDealing": 1
                },
                "probe": {
                  "payTo": "0x43B8...",
                  "http_ms": 240,
                  "network": "eip155:8453",
                  "x402_valid": true,
                  "x402Version": 2
                },
                "origin": "https://agent.connskill.com",
                "status": "delivered",
                "verdict": "green"
              }
            }
          }
        }
      }
    }
  },
  "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.

0.05USDC≈ $0.05 USD
on Base · exact scheme

Pay 0.05 USDC on Base to 0x43B8…f63dE. The signed payment is good for 2 minutes.

Paid to
0x43B8…f63dE
USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
50000 smallest units
Buys
x402 seller trust check before you pay: probes the live 402, reads USDC inflow to payTo on Base, counts payers and flags self-dealing (operator paying itself) - verdict green/yellow/red with reasons and the window it could read
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "service": "trust-check-v1",
      "version": "2"
    },
    "payTo": "0x43B85AE58f0A2505c710Bc715d6f3EB16b1f63dE",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://agent.connskill.com/v1/trust-check",
    "description": "x402 seller trust check before you pay: probes the live 402, reads USDC inflow to payTo on Base, counts payers and flags self-dealing (operator paying itself) - verdict green/yellow/red with reasons and the window it could read",
    "outputSchema": {
      "input": {
        "type": "http",
        "method": "POST",
        "bodyType": "json",
        "bodyFields": {
          "origin": {
            "type": "string",
            "required": true,
            "description": "Bare host of the x402 service to check (no path, no query)"
          }
        }
      },
      "output": {
        "type": "object",
        "description": "x402 seller trust check before you pay: probes the live 402, reads USDC inflow to payTo on Base, counts payers and flags self-dealing (operator paying itself) - verdict green/yellow/red with reasons and the window it could read"
      }
    },
    "maxAmountRequired": "50000",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "origin": "agent.connskill.com"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "chain": {
            "payers": 3,
            "inflowUsdc": 6.87,
            "windowDays": 14,
            "selfDealingShare": 0.31,
            "payersSelfDealing": 1
          },
          "probe": {
            "payTo": "0x43B8...",
            "http_ms": 240,
            "network": "eip155:8453",
            "x402_valid": true,
            "x402Version": 2
          },
          "origin": "https://agent.connskill.com",
          "status": "delivered",
          "verdict": "green"
        }
      }
    },
    "schema": {
      "properties": {
        "input": {
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "origin"
              ],
              "properties": {
                "origin": {
                  "type": "string",
                  "minLength": 4,
                  "description": "Bare host of the x402 service to check, e.g. agent.connskill.com"
                }
              }
            }
          }
        },
        "output": {
          "properties": {
            "example": {
              "chain": {
                "payers": 3,
                "inflowUsdc": 6.87,
                "windowDays": 14,
                "selfDealingShare": 0.31,
                "payersSelfDealing": 1
              },
              "probe": {
                "payTo": "0x43B8...",
                "http_ms": 240,
                "network": "eip155:8453",
                "x402_valid": true,
                "x402Version": 2
              },
              "origin": "https://agent.connskill.com",
              "status": "delivered",
              "verdict": "green"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-19 16:01Z
Last indexed by Roundhouse
2026-09-24 07:40Z
Last enriched (probe, favicon, geo)
2026-09-19 16:15Z
x402 version
2
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. 5 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 agent.connskill.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=agent.connskill.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://agent.connskill.com/v1/trust-check, 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.