x402 Payment Firewall

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MediaLiveeip155:8453Exactvia cdp
x402-payment-firewallSpending-guardPre-payment-riskRecipient-allowlistAnomalous-spend
Settlements · 30d
155↓ 36%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$31.14
Verified settled volume
574 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.
4
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-06-29 16:36Z
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x1D1B81247C407521E2A01F3E21514870dcf1620f

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 0x1D1B…1620f. The signed payment is good for 5 minutes.

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": "0x1D1B81247C407521E2A01F3E21514870dcf1620f",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "chain": "base",
          "amount": 0.01,
          "to_address": "0x1D1B81247C407521E2A01F3E21514870dcf1620f",
          "expected_price": 0.01
        }
      },
      "output": {
        "type": "json",
        "example": {
          "error": null,
          "query": {
            "chain": "base",
            "amount": 0.01,
            "to_address": "0x1D1B81247C407521E2A01F3E21514870dcf1620f",
            "expected_price": 0.01
          },
          "cached": false,
          "reasons": [
            {
              "code": "NO_RISK_SIGNAL",
              "label": "No blocklist hit or spend anomaly detected",
              "weight": -0.5
            }
          ],
          "verdict": "ALLOW",
          "recipient": {
            "valid": true,
            "known_mixer": false,
            "detected_chain": "evm",
            "ofac_sanctioned": false
          },
          "timestamp": "2026-06-29T12:00:00Z",
          "confidence": 0.9,
          "disclaimer": "Automated pre-payment risk screen, not legal/financial advice. ALLOW is not a guarantee.",
          "data_freshness": {
            "as_of": "2026-06-29T12:00:00Z",
            "sources": [
              "OFAC SDN crypto addresses (0xB10C mirror)",
              "local chain validation",
              "internal spend baseline"
            ],
            "age_seconds": 0,
            "retrieved_at": "2026-06-29T12:00:00Z",
            "deterministic": true,
            "ofac_lists_loaded": {
              "ETH": true
            },
            "blocklist_size_evm": 612
          }
        }
      }
    },
    "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",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "to_address"
              ],
              "properties": {
                "chain": {
                  "type": "string",
                  "description": "base | ethereum | solana | bitcoin | tron (optional; inferred from address)"
                },
                "amount": {
                  "type": "number",
                  "description": "Payment amount in USD, e.g. 0.01"
                },
                "to_address": {
                  "type": "string",
                  "description": "Recipient/payTo address (EVM 0x.., Solana, BTC, TRON, XRP)"
                },
                "expected_price": {
                  "type": "number",
                  "description": "Price the resource advertised — flags runaway overspend"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-06-29 16:36Z
Last indexed by Roundhouse
2026-07-16 20:50Z
Last enriched (probe, favicon, geo)
2026-09-13 01:15Z
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

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 x402 Payment Firewall 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%20Payment%20Firewall'
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-endpoints.onrender.com/x402/payment-firewall, 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.