gapfill
Which x402 API fits a task, ranked by what buyers actually do: candidates from the x402 Bazaar's live search plus every paid API with repeat buyers, scored by relevance and by unique payers and repeat calls over 30 days. Each pick has its URL, method, price, network, inputs, payment evidence and risk flags. For choosing a paid API before calling it. Provider calls are paid separately.
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": {
"need": "convert a web page to markdown"
}
},
"output": {
"type": "json",
"example": {
"need": "convert a web page to markdown",
"picks": [
{
"url": "https://win.oneshotagent.com/v1/tools/web-read",
"flags": [],
"inputs": [
"url"
],
"method": "GET",
"network": "eip155:8453",
"service": null,
"evidence": {
"label": "repeat-buyers",
"calls_30d": 9788,
"last_paid": "2026-10-25",
"payers_30d": 22,
"calls_per_payer": 444.9
},
"networks": [
"eip155:8453"
],
"operator": false,
"price_usd": 0.002,
"relevance": 0.81,
"description": "Read a web page and extract content as markdown with screenshot"
}
],
"method": "Candidates: the x402 Bazaar's live search plus every listing with repeat buyers in the snapshot. Ranked by relevance…",
"snapshot": "2026-10-25"
}
}
},
"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": [
"need"
],
"properties": {
"need": {
"type": "string",
"maxLength": 300,
"minLength": 3,
"description": "The task, in plain words"
},
"limit": {
"type": "integer",
"maximum": 10,
"minimum": 1,
"description": "Picks to return (default 5)"
},
"network": {
"type": "string",
"description": "Only listings paid on this CAIP-2 network, e.g. eip155:8453"
},
"maxPrice": {
"type": "number",
"description": "Highest USD price per call to include"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"need",
"snapshot",
"picks"
],
"properties": {
"need": {
"type": "string"
},
"picks": {
"type": "array",
"items": {
"type": "object"
}
},
"method": {
"type": "string"
},
"snapshot": {
"type": "string",
"description": "Day of the buyer-evidence snapshot"
}
}
}
}
}
}
}
}
}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/x402/recommend, 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.