zkbcy7ja.nx.link
No description published for this endpoint.
DataLiveeip155:8453Exactvia 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": "d4ed6245-256e-4bdd-9cdf-a83ba52149e2",
"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}/metadata",
"description": "thirdweb API: getContractMetadata - Get Contract Metadata",
"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 Metadata
- 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}/metadata",
"description": "thirdweb API https://api.thirdweb.com/ - GET Get Contract Metadata",
"outputSchema": {
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"type": "object",
"required": [
"result"
],
"properties": {
"result": {
"type": "object",
"properties": {
"output": {
"type": "object",
"properties": {
"abi": {
"type": "array",
"items": {},
"description": "Contract ABI (Application Binary Interface) as an array of function/event/error definitions."
},
"devdoc": {
"type": "object",
"description": "Developer documentation extracted from contract comments.",
"additionalProperties": {}
},
"userdoc": {
"type": "object",
"description": "User documentation extracted from contract comments.",
"additionalProperties": {}
}
},
"description": "Compilation output including ABI and documentation."
},
"version": {
"type": "number",
"description": "Metadata format version."
},
"compiler": {
"type": "object",
"required": [
"version"
],
"properties": {
"version": {
"type": "string",
"description": "Solidity compiler version used to compile the contract."
}
},
"description": "Compiler information including version."
},
"language": {
"type": "string",
"description": "Programming language of the contract (e.g., 'Solidity')."
},
"settings": {
"type": "object",
"properties": {
"metadata": {
"type": "object",
"properties": {
"bytecodeHash": {
"type": "string",
"description": "Hash method used for bytecode metadata."
}
},
"description": "Metadata settings for compilation."
},
"libraries": {
"type": "object",
"description": "Library addresses for linking.",
"additionalProperties": {}
},
"optimizer": {
"type": "object",
"properties": {
"runs": {
"type": "number",
"description": "Number of optimizer runs."
},
"enabled": {
"type": "boolean",
"description": "Whether optimizer is enabled."
}
},
"description": "Optimizer settings used during compilation."
},
"evmVersion": {
"type": "string",
"description": "EVM version target for compilation."
},
"remappings": {
"type": "array",
"items": {
"type": "string"
},
"description": "Import remappings used during compilation."
},
"compilationTarget": {
"type": "object",
"description": "Compilation target mapping source file names to contract names.",
"additionalProperties": {
"type": "string"
}
}
},
"description": "Compilation settings including optimization and target configuration."
}
}
}
},
"description": "Contract metadata from the thirdweb contract metadata service."
}
}
},
"description": "Successfully retrieved contract metadata"
},
"400": {
"description": "Invalid request parameters"
},
"401": {
"description": "Authentication required. The request must include a valid `x-secret-key` header for backend authentication."
},
"404": {
"description": "Contract metadata not found"
},
"429": {
"description": "Rate limit exceeded"
},
"500": {
"description": "Internal server error"
}
},
"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."
}
]
},
"maxAmountRequired": "0.100033",
"maxTimeoutSeconds": 86400
}
]Provenance
- Seen in the source catalog
- 2026-01-27 00:53Z
- Last indexed by Roundhouse
- 2026-09-24 10:45Z
- 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/contracts/{chainId}/{address}/metadata, 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.