Roundhouse AI

x402-secure-api.t54.ai

x402-secure is the trust layer for x402 ecosystem. Powered by t54.ai.

SearchLiveeip155:8453Exactvia facilitator:payAI
https://x402-secure-api.t54.ai/x402/tools/get_available_resources
Settlements · 30d
34→ 0%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$8.26
Verified settled volume
A floor: summed over 5,000 of up to 29,715,174 indexed settlements. The exact verified count is not computed for a wallet this size.
$0.010
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
0x0495d60c927B97d67D5018C6AA65C9b2bebaeED9

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.

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x0495…aeED9. The signed payment is good for 5 minutes.

Paid to
0x0495…aeED9
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
Buys
Browse searchable directory of x402 servers with pagination, filtering, and sorting. Discover services, check validation status, and build server catalogs for integration. Price: $0.01 USDC per page
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x0495d60c927B97d67D5018C6AA65C9b2bebaeED9",
    "scheme": "exact",
    "network": "base",
    "mimeType": "application/json",
    "resource": "https://x402-secure-api.t54.ai/x402/tools/get_available_resources",
    "description": "Browse searchable directory of x402 servers with pagination, filtering, and sorting. Discover services, check validation status, and build server catalogs for integration. Price: $0.01 USDC per page",
    "outputSchema": {
      "input": {
        "type": "http",
        "method": "POST",
        "bodyType": "json",
        "bodyFields": {
          "q": {
            "type": "string",
            "required": false,
            "description": "Search query for name or URL (case-insensitive partial match)"
          },
          "page": {
            "type": "number",
            "required": false,
            "description": "Page number (default: 1)"
          },
          "source": {
            "enum": [
              "bazaar",
              "x402scan"
            ],
            "type": "string",
            "required": false,
            "description": "Filter by data source: 'bazaar' (official Coinbase registry) or 'x402scan' (community scanner)"
          },
          "status": {
            "enum": [
              "active",
              "inactive",
              "unknown"
            ],
            "type": "string",
            "required": false,
            "description": "Filter by server status"
          },
          "order_by": {
            "enum": [
              "overall_score",
              "created_at",
              "last_validated",
              "name"
            ],
            "type": "string",
            "required": false,
            "description": "Sort field: 'overall_score', 'created_at', 'last_validated', or 'name'"
          },
          "has_payto": {
            "type": "boolean",
            "required": false,
            "description": "Filter by payment address presence: true (has address) or false (no address)"
          },
          "order_dir": {
            "enum": [
              "asc",
              "desc"
            ],
            "type": "string",
            "required": false,
            "description": "Sort direction: 'asc' or 'desc'"
          },
          "page_size": {
            "type": "number",
            "required": false,
            "description": "Items per page (default: 50, max: 100)"
          }
        },
        "headerFields": {
          "X-PAYMENT": {
            "type": "string",
            "required": false,
            "description": "Base64-encoded JSON PaymentPayload; automatically filled by x402scan"
          },
          "X-AP2-EVIDENCE": {
            "type": "string",
            "required": false,
            "description": "Optional compact AP2 mandate reference, JSON envelope, or base64url JSON envelope. Merged into ap2Context; body fields take precedence."
          },
          "X-VI-DECISION-ID": {
            "type": "string",
            "required": false,
            "description": "Optional prior X402 Secure VI decision id for correlation and diagnostics. Settle-time receipt authority comes from the server-side VI assessment."
          },
          "X-VI-EVIDENCE-REF": {
            "type": "string",
            "required": false,
            "description": "Optional Trustline evidence reference returned from a VI assessment."
          },
          "X-VERIFIABLE-INTENT": {
            "type": "string",
            "required": false,
            "description": "Optional compact VI evidence reference, JSON envelope, or base64url JSON envelope. Merged into verifiableIntent; body fields take precedence."
          }
        }
      },
      "output": {
        "page": "number",
        "total": "number",
        "has_next": "boolean",
        "page_size": "number",
        "resources": "array",
        "total_pages": "number"
      }
    },
    "maxAmountRequired": "10000",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "q": {
            "type": "string",
            "required": false,
            "description": "Search query for name or URL (case-insensitive partial match)"
          },
          "page": {
            "type": "number",
            "required": false,
            "description": "Page number (default: 1)"
          },
          "source": {
            "enum": [
              "bazaar",
              "x402scan"
            ],
            "type": "string",
            "required": false,
            "description": "Filter by data source: 'bazaar' (official Coinbase registry) or 'x402scan' (community scanner)"
          },
          "status": {
            "enum": [
              "active",
              "inactive",
              "unknown"
            ],
            "type": "string",
            "required": false,
            "description": "Filter by server status"
          },
          "order_by": {
            "enum": [
              "overall_score",
              "created_at",
              "last_validated",
              "name"
            ],
            "type": "string",
            "required": false,
            "description": "Sort field: 'overall_score', 'created_at', 'last_validated', or 'name'"
          },
          "has_payto": {
            "type": "boolean",
            "required": false,
            "description": "Filter by payment address presence: true (has address) or false (no address)"
          },
          "order_dir": {
            "enum": [
              "asc",
              "desc"
            ],
            "type": "string",
            "required": false,
            "description": "Sort direction: 'asc' or 'desc'"
          },
          "page_size": {
            "type": "number",
            "required": false,
            "description": "Items per page (default: 50, max: 100)"
          }
        },
        "type": "http",
        "method": "POST",
        "headers": {
          "X-PAYMENT": {
            "type": "string",
            "required": false,
            "description": "Base64-encoded JSON PaymentPayload; automatically filled by x402scan"
          },
          "X-AP2-EVIDENCE": {
            "type": "string",
            "required": false,
            "description": "Optional compact AP2 mandate reference, JSON envelope, or base64url JSON envelope. Merged into ap2Context; body fields take precedence."
          },
          "X-VI-DECISION-ID": {
            "type": "string",
            "required": false,
            "description": "Optional prior X402 Secure VI decision id for correlation and diagnostics. Settle-time receipt authority comes from the server-side VI assessment."
          },
          "X-VI-EVIDENCE-REF": {
            "type": "string",
            "required": false,
            "description": "Optional Trustline evidence reference returned from a VI assessment."
          },
          "X-VERIFIABLE-INTENT": {
            "type": "string",
            "required": false,
            "description": "Optional compact VI evidence reference, JSON envelope, or base64url JSON envelope. Merged into verifiableIntent; body fields take precedence."
          }
        },
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "page": "number",
          "total": "number",
          "has_next": "boolean",
          "page_size": "number",
          "resources": "array",
          "total_pages": "number"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object"
        },
        "output": {
          "type": "object"
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-24 09:00Z
Last indexed by Roundhouse
2026-09-24 15:45Z
Last enriched (probe, favicon, geo)
2026-09-14 18:45Z
x402 version
1
Max timeout
300s
Liveness probe
HTTP 405
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-secure-api.t54.ai 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-secure-api.t54.ai'
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-secure-api.t54.ai/x402/tools/get_available_resources, 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.