zkbcy7ja.nx.link
No description published for this endpoint.
OtherLiveeip155:8453Exactvia facilitator:thirdweb
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
—
Verified settled volume
0 settlements proven x402 by their on-chain EIP-3009 marker.
$0.00
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
0xE1F27E03BDBAd7a70055B52Af30B2dB9537F43FdThe 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 header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"nexusPathId": "3a8d7aaa-e777-455e-bf62-5e8d07f43e46",
"primaryType": "TransferWithAuthorization",
"recipientAddress": "0xE1F27E03BDBAd7a70055B52Af30B2dB9537F43Fd",
"facilitatorAddress": "0x758D2532FF6A304D1A0c2FdF46264590E4Ef0637"
},
"payTo": "0x758D2532FF6A304D1A0c2FdF46264590E4Ef0637",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.thirdweb.com//v1/transactions",
"description": "thirdweb API: listTransactions - List Transactions",
"outputSchema": {
"input": {
"type": "http",
"method": "GET",
"discoverable": true
}
},
"maxAmountRequired": "100033",
"maxTimeoutSeconds": 86400
}
],
"x402Version": 1
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.100033USDC≈ $ USD
on Base · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0xE1F2…F43Fd
- USD Coin contract
- 0x8335…02913
- Payment window
- 24 hours
- Buys
- thirdweb API https://api.thirdweb.com/ - POST Send Transactions
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"payTo": "0xE1F27E03BDBAd7a70055B52Af30B2dB9537F43Fd",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://zkbcy7ja.nx.link/v1/transactions",
"description": "thirdweb API https://api.thirdweb.com/ - POST Send Transactions",
"outputSchema": {
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"type": "object",
"required": [
"result"
],
"properties": {
"result": {
"type": "object",
"required": [
"transactionIds"
],
"properties": {
"transactionIds": {
"type": "array",
"items": {
"type": "string"
},
"description": "Array of unique identifiers for the submitted transactions. Use these to track transaction status."
}
}
}
}
}
}
},
"description": "Encoded transactions submitted successfully. Returns the transaction IDs for tracking and monitoring."
},
"400": {
"description": "Invalid request parameters. This occurs when transaction data is malformed, insufficient balance, or invalid encoded data."
},
"401": {
"description": "Authentication required. For backend usage, include `x-secret-key` header. For frontend usage, include `x-client-id` + `Authorization: Bearer <jwt>` headers."
},
"402": {
"content": {
"application/json": {
"schema": {
"type": "object",
"title": "Payment Required Response",
"required": [
"result"
],
"properties": {
"result": {
"type": "object",
"required": [
"message",
"link"
],
"properties": {
"id": {
"type": "string",
"description": "Payment ID"
},
"link": {
"type": "string",
"description": "Link to purchase the product"
},
"quote": {
"type": "object",
"required": [
"destinationAmount",
"intent",
"originAmount",
"steps",
"timestamp"
],
"properties": {
"steps": {
"type": "array",
"items": {
"type": "object",
"required": [
"originToken",
"destinationToken",
"transactions",
"originAmount",
"destinationAmount"
],
"properties": {
"originToken": {
"type": "object",
"required": [
"chainId",
"address",
"decimals",
"symbol",
"prices"
],
"properties": {
"prices": {
"type": "object",
"examples": [
{
"EUR": 0.84,
"USD": 1
}
],
"description": "Token price in different FIAT currencies.",
"additionalProperties": {
"type": "number"
}
},
"symbol": {
"type": "string"
},
"address": {
"type": "string",
"description": "A valid Ethereum address (0x-prefixed hex string) or ENS name (e.g., vitalik.eth)."
},
"chainId": {
"type": "integer",
"examples": [
1,
8453,
137,
56,
43114,
42161,
10
],
"description": "The blockchain network identifier. Common values include: 1 (Ethereum), 8453 (Base), 137 (Polygon), 56 (BSC), 43114 (Avalanche), 42161 (Arbitrum), 10 (Optimism).",
"exclusiveMinimum": 0
},
"iconUri": {
"type": "string"
},
"decimals": {
"type": "number"
}
},
"description": "Origin token information"
},
"originAmount": {
"type": "string",
"description": "Origin amount in wei"
},
"transactions": {
"type": "array",
"items": {
"type": "object",
"required": [
"chainId",
"to",
"data",
"action"
],
"properties": {
"to": {
"type": "string",
"description": "Transaction recipient address"
},
"data": {
"type": "string",
"description": "Transaction data payload"
},
"from": {
"type": "string",
"description": "Transaction sender address"
},
"value": {
"type": "string",
"description": "Transaction value in wei"
},
"action": {
"enum": [
"approval",
"transfer",
"buy",
"sell",
"fee"
],
"type": "string",
"description": "Type of action this transaction performs"
},
"chainId": {
"type": "integer",
"description": "Blockchain network identifier",
"exclusiveMinimum": 0
},
"spender": {
"type": "string",
"description": "Spender address for approval transactions"
}
}
},
"description": "Array of transactions for this step"
},
"destinationToken": {
"type": "object",
"required": [
"chainId",
"address",
"decimals",
"symbol",
"prices"
],
"properties": {
"prices": {
"type": "object",
"examples": [
{
"EUR": 0.84,
"USD": 1
}
],
"description": "Token price in different FIAT currencies.",
"additionalProperties": {
"type": "number"
}
},
"symbol": {
"type": "string"
},
"address": {
"type": "string",
"description": "A valid Ethereum address (0x-prefixed hex string) or ENS name (e.g., vitalik.eth)."
},
"chainId": {
"type": "integer",
"examples": [
1,
8453,
137,
56,
43114,
42161,
10
],
"description": "The blockchain network identifier. Common values include: 1 (Ethereum), 8453 (Base), 137 (Polygon), 56 (BSC), 43114 (Avalanche), 42161 (Arbitrum), 10 (Optimism).",
"exclusiveMinimum": 0
},
"iconUri": {
"type": "string"
},
"decimals": {
"type": "number"
}
},
"description": "Destination token information"
},
"destinationAmount": {
"type": "string",
"description": "Destination amount in wei"
},
"estimatedExecutionTimeMs": {
"type": "number",
"description": "Estimated execution time in milliseconds"
}
}
},
"description": "Array of steps to complete the bridge operation"
},
"intent": {
"type": "object",
"required": [
"amount",
"destinationChainId",
"destinationTokenAddress",
"originChainId",
"originTokenAddress",
"receiver",
"sender"
],
"properties": {
"amount": {
"type": "string",
"description": "The amount in wei"
},
"sender": {
"type": "string",
"description": "Sender address"
},
"receiver": {
"type": "string",
"description": "Receiver address"
},
"originChainId": {
"type": "integer",
"description": "Origin chain ID",
"exclusiveMinimum": 0
},
"destinationChainId": {
"type": "integer",
"description": "Destination chain ID",
"exclusiveMinimum": 0
},
"originTokenAddress": {
"type": "string",
"description": "Origin token address"
},
"destinationTokenAddress": {
"type": "string",
"description": "Destination token address"
}
},
"description": "Quote intent details"
},
"timestamp": {
"type": "number",
"description": "Quote timestamp"
},
"blockNumber": {
"type": "string",
"description": "Block number when quote was generated"
},
"originAmount": {
"type": "string",
"description": "Origin amount in wei"
},
"destinationAmount": {
"type": "string",
"description": "Destination amount in wei"
},
"estimatedExecutionTimeMs": {
"type": "number",
"description": "Estimated execution time in milliseconds"
}
},
"description": "Bridge quote for completing the payment"
},
"message": {
"type": "string",
"description": "Message to display to the user"
}
}
}
},
"description": "Payment required response when user has insufficient funds. Contains a quote for completing the purchase."
}
}
},
"description": "Payment required. Insufficient wallet balance to complete the purchase."
},
"500": {
"description": "Internal server error. This may occur due to blockchain connectivity issues, gas estimation failures, or unexpected server errors."
}
},
"requestBody": {
"content": {
"application/json": {
"schema": {
"type": "object",
"title": "Transaction Request",
"examples": [
{
"from": "0x1234567890123456789012345678901234567890",
"chainId": 137,
"transactions": [
{
"to": "0xA0b86a33E6411E3036C1C4c7E815D0a82e3F5fD6",
"data": "0xa9059cbb000000000000000000000000742d35cc6634c0532925a3b8d43c67b8c8b3e9c6000000000000000000000000000000000000000000000000016345785d8a0000",
"value": "0"
}
]
},
{
"from": "0x1234567890123456789012345678901234567890",
"chainId": 84532,
"transactions": [
{
"to": "0xe352Cf5f74e3ACfd2d59EcCee6373d2Aa996086e",
"data": "0x095ea7b3000000000000000000000000742d35cc6634c0532925a3b8d43c67b8c8b3e9c60000000000000000000000000000000000000000000000000de0b6b3a7640000",
"value": "0"
},
{
"to": "0x1234567890123456789012345678901234567890",
"data": "0x",
"value": "50000000000000000"
}
]
}
],
"required": [
"chainId",
"transactions"
],
"properties": {
"from": {
"type": "string",
"description": "The wallet address or ENS name that will send the transaction. If omitted, the project wallet will be used if available."
},
"chainId": {
"type": "integer",
"examples": [
1,
8453,
137,
56,
43114,
42161,
10
],
"description": "The blockchain network identifier where all transactions will be executed.",
"exclusiveMinimum": 0
},
"transactions": {
"type": "array",
"items": {
"type": "object",
"title": "Transaction",
"required": [
"data",
"to"
],
"properties": {
"to": {
"type": "string",
"description": "The target address or ENS name for the transaction."
},
"data": {
"type": "string",
"description": "Transaction data in hexadecimal format for contract interactions or custom payloads."
},
"value": {
"type": "string",
"description": "Amount of native token to send in wei (smallest unit). Use '0' or omit for non-value transactions."
}
},
"description": "A blockchain transaction with pre-encoded data payload. For contract calls, use /v1/contracts/write. For native token transfers, use /v1/wallets/send."
},
"minItems": 1,
"description": "Array of encoded blockchain transactions to execute. All transactions will use the same from address and chainId."
}
},
"description": "Request object containing an array of encoded blockchain transactions to execute. All transactions must use the same from address and chainId. For contract calls, use /v1/contracts/write. For native token transfers, use /v1/wallets/send."
}
}
}
}
},
"maxAmountRequired": "0.100033",
"maxTimeoutSeconds": 86400
}
]Provenance
- Seen in the source catalog
- 2026-01-27 00:53Z
- Last indexed by Roundhouse
- 2026-09-24 07:45Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 00:15Z
- x402 version
- 1
- Max timeout
- 86400s
- Liveness probe
- HTTP 402
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.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service zkbcy7ja.nx.link 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=zkbcy7ja.nx.link' 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://zkbcy7ja.nx.link/v1/transactions, 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.