Agent Screenshot Hub
One page load answers everything an agent needs to reason about a page: the DOM after JavaScript capped at 2 MB, the CDP accessibility tree flattened with parent references, every link with rel and target and an internal or external verdict, every form field with its label and autocomplete hint, console errors and warnings with source and line, a screenshot, navigation timings and a summary of the requests the page fired. Chrome runs without credentials, without cookies and without login, so a s
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.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"docs": "https://shot.halowerk.com/llms.txt",
"error": "payment_required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "6000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"pricing": "https://shot.halowerk.com/pricing",
"resource": {
"url": "https://shot.halowerk.com/snapshot",
"tags": [
"x402",
"halowerk",
"browser_snapshot"
],
"mimeType": "application/json",
"description": "One page load answers everything an agent needs to reason about a page: the DOM after JavaScript capped at 2 MB, the CDP accessibility tree flattened with parent references, every link with rel and target and an internal or external verdict, every form field with its label and autocomplete hint, console errors and warnings with source and line, a screenshot, navigation timings and a summary of the requests the page fired. Chrome runs without credentials, without cookies and without login, so a s",
"inputSchema": {
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "Absolute http or https URL to render."
},
"include": {
"type": "array",
"items": {
"enum": [
"dom",
"a11y",
"links",
"forms",
"console",
"screenshot"
],
"type": "string"
},
"default": [
"dom",
"a11y",
"links",
"forms",
"console",
"screenshot"
],
"description": "Which parts to return. Omit for all of them. Leaving parts out makes the answer smaller, not cheaper: the page is loaded once either way."
},
"wait_ms": {
"type": "integer",
"default": 0,
"maximum": 8000,
"minimum": 0,
"description": "Wait this long after the page is ready before reading it. Counts against the 20 second budget, it is not added on top."
},
"viewport": {
"type": "object",
"properties": {
"width": {
"type": "integer",
"default": 1280,
"maximum": 2560,
"minimum": 360
},
"height": {
"type": "integer",
"default": 800,
"maximum": 2000,
"minimum": 360
}
},
"description": "Viewport in CSS pixels. Default 1280x800.",
"additionalProperties": false
},
"full_page": {
"type": "boolean",
"default": false,
"description": "Capture the whole document instead of the viewport. Same price on this endpoint."
},
"wait_until": {
"enum": [
"load",
"domcontentloaded",
"networkidle"
],
"type": "string",
"default": "networkidle",
"description": "When the page counts as ready. networkidle waits until at most two connections stay open for half a second, which is what most JavaScript pages need."
},
"check_links": {
"type": "boolean",
"default": false,
"description": "Look up the HTTP status of up to 50 links with HEAD, without following redirects. No extra charge. Without this, links carry no status field."
},
"screenshot_format": {
"enum": [
"png",
"webp",
"jpeg"
],
"type": "string",
"default": "webp",
"description": "Image format. webp is the smallest and keeps the answer under the size cap most often."
},
"screenshot_quality": {
"type": "integer",
"default": 80,
"maximum": 100,
"minimum": 1,
"description": "Compression quality for webp and jpeg. Ignored for png."
}
},
"additionalProperties": false
},
"serviceName": "Agent Screenshot Hub"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://example.com"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json"
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"type": "object",
"properties": {
"body": {
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "Absolute http or https URL to render."
},
"include": {
"type": "array",
"items": {
"enum": [
"dom",
"a11y",
"links",
"forms",
"console",
"screenshot"
],
"type": "string"
},
"default": [
"dom",
"a11y",
"links",
"forms",
"console",
"screenshot"
],
"description": "Which parts to return. Omit for all of them. Leaving parts out makes the answer smaller, not cheaper: the page is loaded once either way."
},
"wait_ms": {
"type": "integer",
"default": 0,
"maximum": 8000,
"minimum": 0,
"description": "Wait this long after the page is ready before reading it. Counts against the 20 second budget, it is not added on top."
},
"viewport": {
"type": "object",
"properties": {
"width": {
"type": "integer",
"default": 1280,
"maximum": 2560,
"minimum": 360
},
"height": {
"type": "integer",
"default": 800,
"maximum": 2000,
"minimum": 360
}
},
"description": "Viewport in CSS pixels. Default 1280x800.",
"additionalProperties": false
},
"full_page": {
"type": "boolean",
"default": false,
"description": "Capture the whole document instead of the viewport. Same price on this endpoint."
},
"wait_until": {
"enum": [
"load",
"domcontentloaded",
"networkidle"
],
"type": "string",
"default": "networkidle",
"description": "When the page counts as ready. networkidle waits until at most two connections stay open for half a second, which is what most JavaScript pages need."
},
"check_links": {
"type": "boolean",
"default": false,
"description": "Look up the HTTP status of up to 50 links with HEAD, without following redirects. No extra charge. Without this, links carry no status field."
},
"screenshot_format": {
"enum": [
"png",
"webp",
"jpeg"
],
"type": "string",
"default": "webp",
"description": "Image format. webp is the smallest and keeps the answer under the size cap most often."
},
"screenshot_quality": {
"type": "integer",
"default": 80,
"maximum": 100,
"minimum": 1,
"description": "Compression quality for webp and jpeg. Ignored for png."
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json"
],
"type": "string"
}
}
}
}
}
}
},
"x402Version": 2,
"instructions": "Sign the accepted terms with an x402 client and repeat the request with the payment header.",
"payment_header": "PAYMENT-SIGNATURE",
"capability_request": {
"url": "https://bedarf.halowerk.com/capabilities/request",
"cost": "free",
"method": "POST",
"description": "Missing a capability, or does the scope not fit? Report the need here - no payment required. Similar reports are bundled; the response returns an id you can check back on.",
"body_example": {
"max_price": 0.01,
"description": "what exactly is needed",
"requested_capability": "short label"
}
}
}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 0.006 USDC on Base to 0x2880…C4E5E. The signed payment is good for 5 minutes.
- Paid to
- 0x2880…C4E5E
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 6000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"asset": "USDC",
"version": "2",
"eip712Domain": {
"name": "USD Coin",
"chainId": 8453,
"version": "2",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"network_name": "Base Mainnet",
"assetTransferMethod": "eip3009"
},
"payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
"amount": "6000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://example.com"
},
"type": "http",
"method": "POST",
"bodyType": "json"
}
},
"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"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "Absolute http or https URL to render."
},
"include": {
"type": "array",
"items": {
"enum": [
"dom",
"a11y",
"links",
"forms",
"console",
"screenshot"
],
"type": "string"
},
"default": [
"dom",
"a11y",
"links",
"forms",
"console",
"screenshot"
],
"description": "Which parts to return. Omit for all of them. Leaving parts out makes the answer smaller, not cheaper: the page is loaded once either way."
},
"wait_ms": {
"type": "integer",
"default": 0,
"maximum": 8000,
"minimum": 0,
"description": "Wait this long after the page is ready before reading it. Counts against the 20 second budget, it is not added on top."
},
"viewport": {
"type": "object",
"properties": {
"width": {
"type": "integer",
"default": 1280,
"maximum": 2560,
"minimum": 360
},
"height": {
"type": "integer",
"default": 800,
"maximum": 2000,
"minimum": 360
}
},
"description": "Viewport in CSS pixels. Default 1280x800."
},
"full_page": {
"type": "boolean",
"default": false,
"description": "Capture the whole document instead of the viewport. Same price on this endpoint."
},
"wait_until": {
"enum": [
"load",
"domcontentloaded",
"networkidle"
],
"type": "string",
"default": "networkidle",
"description": "When the page counts as ready. networkidle waits until at most two connections stay open for half a second, which is what most JavaScript pages need."
},
"check_links": {
"type": "boolean",
"default": false,
"description": "Look up the HTTP status of up to 50 links with HEAD, without following redirects. No extra charge. Without this, links carry no status field."
},
"screenshot_format": {
"enum": [
"png",
"webp",
"jpeg"
],
"type": "string",
"default": "webp",
"description": "Image format. webp is the smallest and keeps the answer under the size cap most often."
},
"screenshot_quality": {
"type": "integer",
"default": 80,
"maximum": 100,
"minimum": 1,
"description": "Compression quality for webp and jpeg. Ignored for png."
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-08-10 11:34Z
- Last indexed by Roundhouse
- 2026-09-09 11:30Z
- Last enriched (probe, favicon, geo)
- 2026-09-23 22:45Z
- x402 version
- 2
- Max timeout
- 300s
- 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
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 17 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Agent Screenshot Hub 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=Agent%20Screenshot%20Hub' 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://shot.halowerk.com/snapshot, 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.