gapfill
Any public web page as clean Markdown: the main article text (Readability) or the whole page, with title, author, site name, publish date, language, word count and fetch time; optional list of the page's links. Plain-text, Markdown and JSON pages come back as text. Reads the first 1.5 MB of a page and returns up to 200,000 characters. For feeding pages to LLM, RAG and research pipelines. A page that cannot be fetched or read is not charged.
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 0.002 USDC on Base to 0x91A7…62AaF. The signed payment is good for 5 minutes.
- Paid to
- 0x91A7…62AaF
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 2000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x91A71892231A256d69d4bf8a442234701a762AaF",
"amount": "2000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"url": "https://en.wikipedia.org/wiki/List_of_HTTP_status_codes"
}
},
"output": {
"type": "json",
"example": {
"url": "https://en.wikipedia.org/wiki/List_of_HTTP_status_codes",
"lang": "en",
"mode": "article",
"title": "List of HTTP status codes - Wikipedia",
"words": 9120,
"byline": null,
"issues": [],
"markdown": "This is a list of Hypertext Transfer Protocol (HTTP) response status codes...",
"siteName": "Wikipedia",
"published": null,
"truncated": false,
"fetched_at": "2026-10-25T14:02:11.482Z",
"description": null
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"url"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "Public http(s) page to read"
},
"mode": {
"enum": [
"article",
"page"
],
"type": "string",
"description": "article (default): the main text only; page: everything but scripts, navigation and footers"
},
"links": {
"type": "boolean",
"description": "Also return the links in the content"
},
"maxChars": {
"type": "integer",
"maximum": 200000,
"minimum": 500,
"description": "Default 40000"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"url",
"title",
"mode",
"markdown",
"words",
"truncated",
"issues",
"fetched_at"
],
"properties": {
"url": {
"type": "string",
"description": "The page read, after redirects"
},
"lang": {
"type": [
"string",
"null"
]
},
"mode": {
"enum": [
"article",
"page"
],
"type": "string",
"description": "page when no article was found or the page is too big to look (see issues), and for text, Markdown and JSON pages"
},
"links": {
"type": "array",
"items": {
"type": "object",
"properties": {
"href": {
"type": "string"
},
"text": {
"type": "string"
}
}
}
},
"title": {
"type": "string"
},
"words": {
"type": "integer"
},
"byline": {
"type": [
"string",
"null"
]
},
"issues": {
"type": "array",
"items": {
"type": "string"
},
"description": "What could not be read in full, e.g. a page over 1.5 MB"
},
"markdown": {
"type": "string",
"description": "JSON pages as a fenced json block"
},
"siteName": {
"type": [
"string",
"null"
]
},
"published": {
"type": [
"string",
"null"
],
"description": "As the page states it"
},
"truncated": {
"type": "boolean",
"description": "Part of the page is not in markdown"
},
"fetched_at": {
"type": "string",
"format": "date-time",
"description": "When the page was fetched (ISO 8601, UTC)"
},
"description": {
"type": [
"string",
"null"
]
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-26 10:38Z
- Last indexed by Roundhouse
- 2026-10-26 17:20Z
- Last enriched (probe, favicon, geo)
- —
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- Not probed
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 gapfill 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=gapfill' 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://jotowl.com/v1/web/read, 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. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.