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": "5dbc64cb-f6b6-4d05-b2f6-3923ff2e97d7",
"primaryType": "TransferWithAuthorization",
"recipientAddress": "0xE1F27E03BDBAd7a70055B52Af30B2dB9537F43Fd",
"facilitatorAddress": "0x758D2532FF6A304D1A0c2FdF46264590E4Ef0637"
},
"payTo": "0x758D2532FF6A304D1A0c2FdF46264590E4Ef0637",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://api.thirdweb.com//v1/contracts/{chainId}/{address}/transactions",
"description": "thirdweb API: getContractTransactions - Get Contract 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/ - GET Get Contract 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/contracts/{chainId}/{address}/transactions",
"description": "thirdweb API https://api.thirdweb.com/ - GET Get Contract Transactions",
"outputSchema": {
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"type": "object",
"required": [
"result"
],
"properties": {
"result": {
"type": "object",
"required": [
"data",
"pagination"
],
"properties": {
"data": {
"type": "array",
"items": {
"type": "object",
"required": [
"blockHash",
"blockNumber",
"blockTimestamp",
"chainId",
"data",
"fromAddress",
"functionSelector",
"gas",
"gasPrice",
"hash",
"nonce",
"status",
"toAddress",
"transactionIndex",
"value"
],
"properties": {
"gas": {
"type": "number",
"description": "The gas limit for the transaction."
},
"data": {
"type": "string",
"description": "The transaction input data."
},
"hash": {
"type": "string",
"description": "The transaction hash."
},
"nonce": {
"type": "number",
"description": "The transaction nonce."
},
"value": {
"type": "string",
"description": "The value transferred in the transaction (in wei as string)."
},
"status": {
"type": "number",
"description": "The transaction status (1 for success, 0 for failure)."
},
"chainId": {
"type": "string",
"description": "The chain ID where the transaction occurred."
},
"decoded": {
"type": "object",
"required": [
"inputs",
"name",
"signature"
],
"properties": {
"name": {
"type": "string",
"description": "The function name."
},
"inputs": {
"type": "object",
"description": "Object containing decoded function parameters.",
"additionalProperties": {}
},
"signature": {
"type": "string",
"description": "The function signature."
}
},
"description": "Decoded transaction data (included when ABI is available)."
},
"gasUsed": {
"type": "number",
"description": "The amount of gas used by the transaction."
},
"gasPrice": {
"type": "string",
"description": "The gas price used for the transaction (in wei as string)."
},
"blockHash": {
"type": "string",
"description": "The hash of the block containing this transaction."
},
"toAddress": {
"type": "string",
"description": "The address that received the transaction."
},
"blockNumber": {
"type": "number",
"description": "The block number containing this transaction."
},
"fromAddress": {
"type": "string",
"description": "The address that initiated the transaction."
},
"maxFeePerGas": {
"type": "string",
"description": "Maximum fee per gas (EIP-1559)."
},
"blockTimestamp": {
"type": "number",
"description": "The timestamp of the block (Unix timestamp)."
},
"contractAddress": {
"type": "string",
"description": "Contract address created if this was a contract creation transaction."
},
"transactionType": {
"type": "number",
"description": "The transaction type (0=legacy, 1=EIP-2930, 2=EIP-1559)."
},
"functionSelector": {
"type": "string",
"description": "The function selector (first 4 bytes of the transaction data)."
},
"transactionIndex": {
"type": "number",
"description": "The index of the transaction within the block."
},
"cumulativeGasUsed": {
"type": "number",
"description": "Total gas used by all transactions in this block up to and including this one."
},
"effectiveGasPrice": {
"type": "string",
"description": "The effective gas price paid (in wei as string)."
},
"maxPriorityFeePerGas": {
"type": "string",
"description": "Maximum priority fee per gas (EIP-1559)."
}
}
},
"description": "Array of contract transactions."
},
"pagination": {
"type": "object",
"properties": {
"page": {
"type": [
"number",
"null"
],
"default": 1,
"description": "Current page number"
},
"limit": {
"type": [
"number",
"null"
],
"default": 20,
"description": "Number of items per page"
},
"hasMore": {
"type": "boolean",
"description": "Whether there are more items available"
},
"totalCount": {
"type": [
"number",
"null"
],
"description": "Total number of items available"
}
}
}
}
}
}
}
}
},
"description": "Contract transactions retrieved successfully. Returns transaction data with metadata including pagination information. Includes decoded function calls when ABI is available."
},
"400": {
"description": "Invalid request parameters. This occurs when the contract address or chainId format is invalid, or pagination parameters are out of range."
},
"401": {
"description": "Authentication required. The request must include a valid `x-client-id` header for frontend usage or `x-secret-key` for backend usage."
},
"404": {
"description": "Contract not found or no transactions available for the specified contract address on the given blockchain network."
},
"500": {
"description": "Internal server error. This may occur due to network connectivity issues, external service unavailability, or unexpected server errors."
}
},
"parameters": [
{
"in": "path",
"name": "chainId",
"schema": {
"type": "integer",
"examples": [
1,
8453,
137,
56,
43114,
42161,
10
],
"description": "The blockchain network identifier where the contract is deployed.",
"exclusiveMinimum": 0
},
"required": true,
"description": "The blockchain network identifier where the contract is deployed."
},
{
"in": "path",
"name": "address",
"schema": {
"type": "string",
"description": "The smart contract address or ENS name."
},
"required": true,
"description": "The smart contract address or ENS name."
},
{
"in": "query",
"name": "filterFromAddress",
"schema": {
"type": "string",
"description": "Filter by transaction sender address"
},
"required": false,
"description": "Filter by transaction sender address"
},
{
"in": "query",
"name": "filterToAddress",
"schema": {
"type": "string",
"description": "Filter by transaction recipient address"
},
"required": false,
"description": "Filter by transaction recipient address"
},
{
"in": "query",
"name": "filterBlockTimestampGte",
"schema": {
"type": [
"integer",
"null"
],
"minimum": 0,
"description": "Filter by block timestamp (Unix timestamp) greater than or equal to this value"
},
"required": false,
"description": "Filter by block timestamp (Unix timestamp) greater than or equal to this value"
},
{
"in": "query",
"name": "filterBlockTimestampLte",
"schema": {
"type": [
"integer",
"null"
],
"minimum": 0,
"description": "Filter by block timestamp (Unix timestamp) less than or equal to this value"
},
"required": false,
"description": "Filter by block timestamp (Unix timestamp) less than or equal to this value"
},
{
"in": "query",
"name": "filterBlockNumberGte",
"schema": {
"type": [
"integer",
"null"
],
"minimum": 0,
"description": "Filter by block number greater than or equal to this value"
},
"required": false,
"description": "Filter by block number greater than or equal to this value"
},
{
"in": "query",
"name": "filterBlockNumberLte",
"schema": {
"type": [
"integer",
"null"
],
"minimum": 0,
"description": "Filter by block number less than or equal to this value"
},
"required": false,
"description": "Filter by block number less than or equal to this value"
},
{
"in": "query",
"name": "filterValueGt",
"schema": {
"type": "string",
"description": "Filter by transaction value (in wei) greater than this value"
},
"required": false,
"description": "Filter by transaction value (in wei) greater than this value"
},
{
"in": "query",
"name": "filterFunctionSelector",
"schema": {
"type": "string",
"description": "Filter by function selector (4-byte method ID), e.g., '0xa9059cbb' for ERC-20 transfer"
},
"required": false,
"description": "Filter by function selector (4-byte method ID), e.g., '0xa9059cbb' for ERC-20 transfer"
},
{
"in": "query",
"name": "page",
"schema": {
"type": [
"number",
"null"
],
"default": 1,
"description": "Current page number"
},
"required": false,
"description": "Current page number"
},
{
"in": "query",
"name": "limit",
"schema": {
"type": [
"number",
"null"
],
"default": 20,
"description": "Number of items per page"
},
"required": false,
"description": "Number of items per page"
},
{
"in": "query",
"name": "sortOrder",
"schema": {
"enum": [
"asc",
"desc"
],
"type": "string",
"default": "desc",
"description": "Sort order: 'asc' for ascending, 'desc' for descending"
},
"required": false,
"description": "Sort order: 'asc' for ascending, 'desc' for descending"
}
]
},
"maxAmountRequired": "0.100033",
"maxTimeoutSeconds": 86400
}
]Provenance
- Seen in the source catalog
- 2026-01-27 00:53Z
- Last indexed by Roundhouse
- 2026-09-25 12:15Z
- 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/contracts/{chainId}/{address}/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.