5643h1ta.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
0x199b4cb1B72d8B3eBba077931E10AfB0a25Fa4C5The 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.
0.050008USDC≈ $ 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
- 0x199b…Fa4C5
- USD Coin contract
- 0x8335…02913
- Payment window
- 24 hours
- Buys
- ChangeProof API https://sourceproof-production.up.railway.app - POST Call this only when a ChangeProof check reports changed=true. It classifies materiality and returns structured before and after quotations validated against stored evidence.
- Returns
- application/json
The catalog’s raw entry
[
{
"asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"payTo": "0x199b4cb1B72d8B3eBba077931E10AfB0a25Fa4C5",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://5643h1ta.nx.link/v1/changeproof/analyses",
"description": "ChangeProof API https://sourceproof-production.up.railway.app - POST Call this only when a ChangeProof check reports changed=true. It classifies materiality and returns structured before and after quotations validated against stored evidence.",
"outputSchema": {
"responses": {
"200": {
"content": {
"application/json": {
"schema": {
"type": "object",
"title": "ChangeAnalysisResponse",
"required": [
"request_id",
"check_id",
"watch_id",
"url",
"summary",
"materiality",
"changes",
"model",
"usage"
],
"properties": {
"url": {
"type": "string",
"title": "Url"
},
"model": {
"type": "string",
"title": "Model"
},
"usage": {
"type": "object",
"title": "TokenUsage",
"properties": {
"input_tokens": {
"type": "integer",
"title": "Input Tokens",
"default": 0
},
"total_tokens": {
"type": "integer",
"title": "Total Tokens",
"default": 0
},
"output_tokens": {
"type": "integer",
"title": "Output Tokens",
"default": 0
}
},
"additionalProperties": false
},
"changes": {
"type": "array",
"items": {
"type": "object",
"title": "ChangeCitation",
"required": [
"category",
"before_evidence_id",
"after_evidence_id",
"explanation"
],
"properties": {
"category": {
"enum": [
"content",
"price",
"availability",
"policy",
"date",
"contact",
"other"
],
"type": "string",
"title": "ChangeCategory"
},
"after_quote": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "After Quote"
},
"explanation": {
"type": "string",
"title": "Explanation"
},
"before_quote": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Before Quote"
},
"after_locator": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "After Locator"
},
"before_locator": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Before Locator"
},
"after_evidence_id": {
"type": "string",
"title": "After Evidence Id"
},
"before_evidence_id": {
"type": "string",
"title": "Before Evidence Id"
}
},
"additionalProperties": false
},
"title": "Changes"
},
"summary": {
"type": "string",
"title": "Summary"
},
"check_id": {
"type": "string",
"title": "Check Id"
},
"watch_id": {
"type": "string",
"title": "Watch Id"
},
"request_id": {
"type": "string",
"title": "Request Id"
},
"materiality": {
"enum": [
"minor",
"material",
"unknown"
],
"type": "string",
"title": "ChangeMateriality"
}
},
"additionalProperties": false
}
}
},
"description": "Successful Response"
},
"422": {
"content": {
"application/json": {
"schema": {
"type": "object",
"title": "HTTPValidationError",
"properties": {
"detail": {
"type": "array",
"items": {
"type": "object",
"title": "ValidationError",
"required": [
"loc",
"msg",
"type"
],
"properties": {
"ctx": {
"type": "object",
"title": "Context"
},
"loc": {
"type": "array",
"items": {
"anyOf": [
{
"type": "string"
},
{
"type": "integer"
}
]
},
"title": "Location"
},
"msg": {
"type": "string",
"title": "Message"
},
"type": {
"type": "string",
"title": "Error Type"
},
"input": {
"title": "Input"
}
}
},
"title": "Detail"
}
}
}
}
},
"description": "Validation Error"
}
},
"parameters": [
{
"in": "header",
"name": "Idempotency-Key",
"schema": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"title": "Idempotency-Key"
},
"required": false
}
],
"requestBody": {
"content": {
"application/json": {
"schema": {
"type": "object",
"title": "ChangeAnalysisRequest",
"required": [
"check_id"
],
"properties": {
"check_id": {
"type": "string",
"title": "Check Id",
"pattern": "^cpc-[a-f0-9]{32}$",
"maxLength": 36,
"minLength": 36,
"description": "Changed-check identifier returned by the check operation."
}
},
"additionalProperties": false
}
}
},
"required": true
}
},
"maxAmountRequired": "0.050008",
"maxTimeoutSeconds": 86400
}
]Provenance
- Seen in the source catalog
- 2026-07-28 18:24Z
- Last indexed by Roundhouse
- 2026-09-24 06:45Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 00:15Z
- x402 version
- 1
- Max timeout
- 86400s
- Liveness probe
- HTTP 404
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 5643h1ta.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=5643h1ta.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://5643h1ta.nx.link/v1/changeproof/analyses, 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.