Roundhouse

402.com.tr

No description published for this endpoint.

TradingLiveeip155:8453Exactvia facilitator:thirdweb
https://402.com.tr/api/x402/base-swap-validity
Calls · 30d
2↑ 56%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 15 snapshots so far.
$90.90
Verified settled volume
2,477 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
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
0x973a31858f4d2125f48c880542da11a2796f12d6

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",
  "sample": {
    "data": {
      "chain": "base",
      "checkedAt": "2026-10-09T11:06:42.019Z",
      "routeCount": 1,
      "stepsCount": 4,
      "conditional": true,
      "tokenSafety": null,
      "validityCount": 1,
      "insufficientBalance": false
    },
    "note": "Preview of a real response — a paid call returns the full report (all signals, details & recommendation)."
  },
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x973a31858f4d2125f48c880542da11a2796f12d6",
      "amount": "20000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeCall": "This service gives 1 free call/day per IP — retry with `?free=1` (or the header `x-402-free: 1`) and no payment header. After that the same flag returns a preview.",
  "resource": {
    "url": "https://402.com.tr/api/x402/base-swap-validity",
    "tags": [
      "onchain",
      "evm",
      "wallet-intel",
      "security",
      "data",
      "swap",
      "validity",
      "base",
      "x402"
    ],
    "mimeType": "application/json",
    "description": "The base-swap 0x trade wrapped in a Cobalt validity transaction: Base holds your signed tx dormant until your conditions hold, then includes it — a good-till-block/conditional order, no limit-order contract, nobody holding the trade. We never hold funds or keys; you sign and submit to Base's sequencer. Conditions: beforeBlock (a deadline), fromBlock, flashblockIndex, minNativeBalanceWei, or a caller-supplied storage predicate for price. At least one required.",
    "serviceName": "Base Swap — Conditional"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "pathParams": {},
          "queryParams": {
            "buy": "ETH",
            "sell": "USDC",
            "taker": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
            "amount": "10",
            "slippage": "100",
            "storageOp": ">=",
            "beforeBlock": "40000000",
            "flashblockIndex": "0"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "chain": "base",
            "checkedAt": "2026-10-09T11:06:42.019Z",
            "routeCount": 1,
            "stepsCount": 4,
            "conditional": true,
            "tokenSafety": null,
            "validityCount": 1,
            "insufficientBalance": false
          }
        }
      },
      "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"
              },
              "pathParams": {
                "type": "object"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "sell",
                  "buy",
                  "amount",
                  "taker"
                ],
                "properties": {
                  "buy": {
                    "type": "string",
                    "description": "Token you buy"
                  },
                  "sell": {
                    "type": "string",
                    "description": "Token you sell"
                  },
                  "taker": {
                    "type": "string",
                    "description": "Your wallet (signs the swap)"
                  },
                  "amount": {
                    "type": "string",
                    "description": "Amount you sell"
                  },
                  "slippage": {
                    "type": "string",
                    "description": "Slippage in bps (optional, default 100)"
                  },
                  "fromBlock": {
                    "type": "string",
                    "description": "Earliest block (optional)"
                  },
                  "storageOp": {
                    "type": "string",
                    "description": "Advanced: operator (< <= = != > >=)"
                  },
                  "beforeBlock": {
                    "type": "string",
                    "description": "Deadline: before this block (recommended)"
                  },
                  "storageMask": {
                    "type": "string",
                    "description": "Advanced: mask (hex, optional)"
                  },
                  "storageSlot": {
                    "type": "string",
                    "description": "Advanced: storage slot (hex)"
                  },
                  "storageValue": {
                    "type": "string",
                    "description": "Advanced: compare value (hex)"
                  },
                  "storageAddress": {
                    "type": "string",
                    "description": "Advanced: pool/token for a storage condition"
                  },
                  "flashblockIndex": {
                    "type": "string",
                    "description": "Flashblock index (optional)"
                  },
                  "minNativeBalanceWei": {
                    "type": "string",
                    "description": "Min taker ETH balance in wei (optional)"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      },
      "routeTemplate": ":var1"
    },
    "builder-code": {
      "info": {
        "a": "bc_pa0gqlv1"
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "a": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$",
            "description": "App builder code"
          },
          "s": {
            "type": "array",
            "items": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$"
            },
            "description": "Service builder codes"
          },
          "w": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$",
            "description": "Wallet builder code"
          }
        },
        "additionalProperties": false
      }
    }
  },
  "x402Version": 2,
  "alternatives": [
    {
      "url": "https://402.com.tr/api/x402/buy-credits?tier=0.25",
      "then": "Send the returned token as the `x-credit-token` header on this and any paid call; each debits its price from the balance — no per-call signature.",
      "gives": "≈8 calls at this service's price from one settlement; lowest-friction start.",
      "action": "buy-credits",
      "method": "POST",
      "priceUsdc": "0.25",
      "recommended": true
    },
    {
      "url": "https://402.com.tr/api/x402/base-swap-validity?free=1",
      "gives": "1 free full call/day per IP — repeat this request with free=1 (or the header x-402-free: 1) and no payment header.",
      "action": "free-call",
      "method": "GET"
    },
    {
      "url": "https://402.com.tr/api/x402/base-swap-validity",
      "gives": "Pay this exact call now over x402 — see the `accepts` array for scheme/amount/asset/payTo.",
      "action": "pay-x402",
      "method": "GET"
    }
  ],
  "prepaidCredits": "One x402 settlement on /api/x402/buy-credits?tier=0.25|1|5|20 mints a bearer credit token; send it as the x-credit-token header and later calls debit the balance — no wallet or signature per call after that first purchase."
}

Accepts

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

0.02USDC≈ $0.02 USD
on Base · exact scheme

Pay 0.02 USDC on Base to 0x973a…f12d6. The signed payment is good for 5 minutes.

Paid to
0x973a…f12d6
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
20000 smallest units
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x973a31858f4d2125f48c880542da11a2796f12d6",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://402.com.tr/api/x402/base-swap-validity",
    "description": "",
    "maxAmountRequired": "20000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog
2026-10-09 11:06Z
Last indexed by Roundhouse
2026-10-16 09:45Z
Last enriched (probe, favicon, geo)
2026-10-10 20:46Z
x402 version
1
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 15 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 402.com.tr 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=402.com.tr'
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://402.com.tr/api/x402/base-swap-validity, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.