Roundhouse AI

secondeyesai.com

x402-doctor: grade any x402 402 response for CDP Bazaar v2 indexing compliance and return the exact corrected payload.

SearchLiveeip155:8453Exactvia cdp
https://secondeyesai.com/api/bar/x402/doctor
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
$6.38
Verified settled volume
71 settlements proven x402 by their on-chain EIP-3009 marker.
$1.00
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-05-31 23:03Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xFb8915074cC941f5Ab95E6001c45287b8EeC4427

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",
  "access": "unpaid_invoice",
  "lounge": {
    "laws": "/api/bar/laws",
    "enter": "/api/bar/enter",
    "index": "/api/bar",
    "leave": "/api/bar/leave",
    "proof": "/api/bar/proof",
    "stats": "/api/bar/stats",
    "bar_tab": "/api/access/purchase?plan=annual",
    "catalog": "/api/bar/catalog",
    "pricing": "/api/bar/pricing",
    "receipt": "/api/bar/receipt"
  },
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bda02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xFb8915074cC941f5Ab95E6001c45287b8EeC4427",
      "amount": "250000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 600
    }
  ],
  "product": {
    "id": "x402-doctor",
    "kind": "micro",
    "oneTime": true,
    "priceUsd": 0.25
  },
  "mimeType": "application/json",
  "resource": "https://secondeyesai.com/api/bar/x402/doctor",
  "retry_url": "https://secondeyesai.com/api/bar/x402/doctor",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET"
        },
        "output": {
          "type": "json",
          "example": {
            "tool": "x402-doctor",
            "grade": "F",
            "score": 42,
            "summary": "This is x402 v1 — it will not index on the Bazaar. Apply the corrected payload, redeploy, then settle one payment.",
            "version": 1,
            "corrected": {
              "accepts": [
                {
                  "scheme": "exact",
                  "network": "eip155:8453"
                }
              ],
              "x402Version": 2
            },
            "indexable": false,
            "criticalCount": 3
          }
        }
      },
      "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",
                "properties": {}
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    },
    "auth_hints": {
      "info": {
        "scheme": "ExactEvmScheme",
        "wallet": "dedicated-low-balance-base-usdc",
        "network": "eip155:8453",
        "wallet_rule": "Never sign from a primary/high-balance wallet.",
        "token_source": "200 response body accessToken / X-PAYMENT-RESPONSE receipt",
        "signature_header": "PAYMENT-SIGNATURE",
        "post_payment_auth": "Bearer",
        "requirements_header": "PAYMENT-REQUIRED"
      }
    },
    "auth_capture": {
      "info": {
        "live": false,
        "network": "eip155:8453",
        "supported": true,
        "operations": [
          "authorize",
          "capture",
          "void",
          "refund"
        ],
        "blocked_reason": "CDP verify/settle captures the full signed amount at settle; no separate authorize-hold/capture/void call. Repo-side authorize→capture→void/refund state machine is implemented and tested; live partial capture is blocked.",
        "refund_window_seconds": 86400
      }
    },
    "offer_receipt": {
      "info": {
        "proves": [
          "terms",
          "delivery"
        ],
        "signed": true,
        "verify": "Recompute HMAC over the canonical receipt (minus `signature`) with the shared secret.",
        "algorithm": "HMAC-SHA256",
        "supported": true,
        "deterministic": true,
        "canonicalization": "sorted-keys-json"
      }
    },
    "bazaar_metadata": {
      "info": {
        "tags": [
          "x402",
          "agents",
          "second-eyes",
          "micro",
          "x402-doctor"
        ],
        "iconUrl": "https://secondeyesai.com/favicon.ico",
        "serviceName": "Second Eyes MCP Verification Utility"
      }
    },
    "batch_settlement": {
      "info": {
        "live": false,
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bda02913",
        "model": "commitment",
        "network": "eip155:8453",
        "supported": true,
        "blocked_reason": "CDP facilitator settles one authorization per verify/settle; no batch-redeem endpoint. Repo-side commitment model + accumulation are implemented and tested; on-chain redemption is blocked."
      }
    },
    "payment_identifier": {
      "info": {
        "note": "Echo a stable Idempotency-Key (or paymentId in the signed payload) on retries. The server returns the original receipt for a repeated identifier and never settles the same logical payment twice.",
        "behavior": "idempotent",
        "required": true,
        "payloadField": "paymentId",
        "identifierField": "Idempotency-Key"
      }
    },
    "eip2612_sponsorship": {
      "info": {
        "live": false,
        "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bda02913",
        "permit": {
          "version": "2",
          "standard": "EIP-2612",
          "primaryType": "Permit"
        },
        "network": "eip155:8453",
        "supported": true,
        "blocked_reason": "No paymaster/relayer is operated and the CDP facilitator does not sponsor gas. permit() metadata + the sponsorship request hook are repo-side; live sponsored relay is blocked."
      }
    }
  },
  "description": "x402-doctor: grade any x402 402 response for CDP Bazaar v2 indexing compliance and return the exact corrected payload.",
  "next_action": "retry_same_url_with_PAYMENT_SIGNATURE",
  "x402Version": 2,
  "client_options": {
    "mcp_autopay": {
      "package": "@secondeyes/mcp-unblock",
      "version": "1.2.6",
      "required_env": [
        "MCP_X402_WALLET_KEY",
        "MCP_X402_MAX_SPEND_USD"
      ]
    },
    "rest_autopay": {
      "asset": "USDC",
      "network": "eip155:8453",
      "packages": [
        "@x402/fetch",
        "@x402/evm",
        "viem"
      ]
    }
  },
  "payment_header": "PAYMENT-SIGNATURE",
  "maxAmountRequired": "250000",
  "on_payment_failure": {
    "retry": "exponential_backoff_with_jitter",
    "catalog": "https://secondeyesai.com/api/bar/catalog",
    "max_retries": 3,
    "free_samples": {
      "tap": "https://secondeyesai.com/api/bar/taps/cursor-mcp-minimal-config",
      "tool": "https://secondeyesai.com/api/bar/tools/cursor-mcp-wiring"
    },
    "do_not_serve_degraded_paid_content": true
  },
  "cheapest_first_step": {
    "url": "https://secondeyesai.com/api/bar/x402/help-me",
    "why": "Use this if you are unsure what to buy.",
    "name": "help-me",
    "price_usd": 0.01
  },
  "paid_result_exposed": false,
  "requirements_header": "PAYMENT-REQUIRED"
}

Accepts

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

1USDC≈ $1 USD
on Base · exact scheme

Pay 1 USDC on Base to 0xFb89…C4427. The signed payment is good for 10 minutes.

Paid to
0xFb89…C4427
USD Coin contract
0x8335…02913
Payment window
10 minutes
As published
1000000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bda02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xFb8915074cC941f5Ab95E6001c45287b8EeC4427",
    "amount": "1000000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 600
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET"
      },
      "output": {
        "type": "json",
        "example": {
          "tool": "x402-doctor",
          "grade": "F",
          "score": 42,
          "summary": "This is x402 v1 — it will not index on the Bazaar. Apply the corrected payload, redeploy, then settle one payment.",
          "version": 1,
          "corrected": {
            "accepts": [
              {
                "scheme": "exact",
                "network": "eip155:8453"
              }
            ],
            "x402Version": 2
          },
          "indexable": false,
          "criticalCount": 3
        }
      }
    },
    "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"
            }
          }
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-05-31 23:03Z
Last indexed by Roundhouse
2026-06-11 02:40Z
Last enriched (probe, favicon, geo)
2026-09-22 15:45Z
x402 version
2
Max timeout
600s
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

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 secondeyesai.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=secondeyesai.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://secondeyesai.com/api/bar/x402/doctor, 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.