PageDiff API
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The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
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.
Pay 0.05 USDC on Base to 0x4a82…85bFE. The signed payment is good for 2 minutes.
- Paid to
- 0x4a82…85bFE
- USD Coin contract
- 0x8335…02913
- Payment window
- 2 minutes
- As published
- 50000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x4a82F147c8A4339409C9097Adc1EedFd56E85bFE",
"amount": "50000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 120
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"to": "2024-01-01",
"url": "https://example.com/",
"from": "2023-01-01"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"url": "https://example.com/",
"added": [
"Updated example page content."
],
"removed": [
"Original example page content."
],
"summary": {
"added_count": 1,
"change_level": "low",
"removed_count": 1,
"modified_count": 0
},
"modified": [],
"to_snapshot": {
"digest": "EXAMPLE2",
"mimetype": "text/html",
"timestamp": "20240101000000",
"statuscode": "200",
"archive_url": "https://web.archive.org/web/20240101000000id_/https://example.com/",
"original_url": "https://example.com/",
"requested_date": "2024-01-01"
},
"from_snapshot": {
"digest": "EXAMPLE",
"mimetype": "text/html",
"timestamp": "20230101000000",
"statuscode": "200",
"archive_url": "https://web.archive.org/web/20230101000000id_/https://example.com/",
"original_url": "https://example.com/",
"requested_date": "2023-01-01"
}
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"url",
"from",
"to"
],
"properties": {
"to": {
"type": "string",
"examples": [
"2024-01-01"
],
"description": "Requested later snapshot date in YYYY-MM-DD format."
},
"url": {
"type": "string",
"examples": [
"https://example.com/"
]
},
"from": {
"type": "string",
"examples": [
"2023-01-01"
],
"description": "Requested earlier snapshot date in YYYY-MM-DD format."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"url",
"from_snapshot",
"to_snapshot",
"summary",
"added",
"removed",
"modified"
],
"properties": {
"url": {
"type": "string"
},
"added": {
"type": "array",
"items": {
"type": "string"
}
},
"removed": {
"type": "array",
"items": {
"type": "string"
}
},
"summary": {
"type": "object",
"required": [
"change_level",
"added_count",
"removed_count",
"modified_count"
],
"properties": {
"added_count": {
"type": "number"
},
"change_level": {
"enum": [
"none",
"low",
"moderate",
"high"
],
"type": "string"
},
"removed_count": {
"type": "number"
},
"modified_count": {
"type": "number"
}
}
},
"modified": {
"type": "array",
"items": {
"type": "object",
"required": [
"before",
"after"
],
"properties": {
"after": {
"type": "string"
},
"before": {
"type": "string"
}
}
}
},
"to_snapshot": {
"type": "object",
"required": [
"requested_date",
"timestamp",
"original_url",
"archive_url",
"statuscode",
"mimetype",
"digest"
],
"properties": {
"digest": {
"type": "string"
},
"mimetype": {
"type": "string"
},
"timestamp": {
"type": "string",
"examples": [
"20240101120000"
]
},
"statuscode": {
"type": "string"
},
"archive_url": {
"type": "string"
},
"original_url": {
"type": "string"
},
"requested_date": {
"type": "string",
"examples": [
"2024-01-01"
]
}
}
},
"from_snapshot": {
"type": "object",
"required": [
"requested_date",
"timestamp",
"original_url",
"archive_url",
"statuscode",
"mimetype",
"digest"
],
"properties": {
"digest": {
"type": "string"
},
"mimetype": {
"type": "string"
},
"timestamp": {
"type": "string",
"examples": [
"20240101120000"
]
},
"statuscode": {
"type": "string"
},
"archive_url": {
"type": "string"
},
"original_url": {
"type": "string"
},
"requested_date": {
"type": "string",
"examples": [
"2024-01-01"
]
}
}
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-06-15 17:12Z
- Last indexed by Roundhouse
- 2026-06-15 17:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-25 13:15Z
- x402 version
- 2
- Max timeout
- 120s
- 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
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service PageDiff API 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=PageDiff%20API' 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://pagediff-api.hahavoid0.workers.dev/diff, 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.