Roundhouse

defi-shield-hazel.vercel.app

The autonomous stack for every app and agent.

TradingLiveeip155:8453Exactvia cdp
https://defi-shield-hazel.vercel.app/api/defi/pre-trade-check
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
$78.14
Verified settled volume
313 settlements proven x402 by their on-chain EIP-3009 marker.
$0.100
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 2026-06-05 23:37Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x0814d35F25F2EF3Dffa4aEF4d137558D5E51Ed7b

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.

0.1USDC≈ $0.1 USD
on Base · exact scheme

Pay 0.1 USDC on Base to 0x0814…1Ed7b. The signed payment is good for 5 minutes.

Paid to
0x0814…1Ed7b
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
100000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x0814d35F25F2EF3Dffa4aEF4d137558D5E51Ed7b",
    "amount": "100000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "amount_usd": 5000,
          "token_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "slippage_tolerance": 1
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "checks": {
            "mev": {
              "risk_score": 15,
              "recommended_slippage": 0.5,
              "sandwich_probability": 0.0005
            },
            "holders": {
              "count": 100,
              "risk_score": 0,
              "top10_concentration": 35.2
            },
            "contract": {
              "is_proxy": false,
              "verified": true,
              "risk_score": 0
            },
            "honeypot": {
              "risk_score": 0,
              "is_honeypot": false
            },
            "liquidity": {
              "total_usd": 45000000,
              "risk_score": 0,
              "pairs_found": 12
            }
          },
          "verdict": "PROCEED",
          "token_name": "USD Coin",
          "overall_risk": 12,
          "token_symbol": "USDC",
          "recommendations": []
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "bodyType",
            "body",
            "method"
          ],
          "properties": {
            "body": {
              "properties": {
                "chain": {
                  "type": "string",
                  "description": "Chain (default: base)"
                },
                "amount_usd": {
                  "type": "number",
                  "description": "Trade size in USD for MEV/slippage analysis (default: 1000)"
                },
                "token_address": {
                  "type": "string",
                  "description": "Token contract address (0x + 40 hex chars)"
                },
                "slippage_tolerance": {
                  "type": "number",
                  "description": "Your planned slippage tolerance in %"
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-06-05 23:37Z
Last indexed by Roundhouse
2026-06-28 18:00Z
Last enriched (probe, favicon, geo)
2026-09-20 23:45Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 404
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 defi-shield-hazel.vercel.app 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=defi-shield-hazel.vercel.app'
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://defi-shield-hazel.vercel.app/api/defi/pre-trade-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.