x402-research-iota.vercel.app
Use before interacting with an unfamiliar Base (chain 8453) address: returns a public-data red-flag snapshot (contract vs EOA, EIP-7702 delegation, source verification, upgradeable proxy, age, activity, ETH/USDC balance, risk level). Pass ?address=0x... Errors: 400 invalid address. Informational only.
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 0.03 USDC on Base to 0xa26f…b8147. The signed payment is good for 5 minutes.
- Paid to
- 0xa26f…b8147
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 30000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xa26f179e42836bc4ae0cea997fdfc9602d5b8147",
"amount": "30000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}
},
"output": {
"type": "json",
"example": {
"flags": [
{
"code": "upgradeable_proxy",
"level": "medium",
"detail": "Upgradeable proxy; logic can change."
}
],
"proxy": {
"admin": "0x4fc7850364958d97b4d3f5a08f79db2493f8ca44",
"standard": "ZeppelinOS-legacy",
"upgradeable": true,
"implementation": "0x2ce6311ddae708829bc0784c967b7d77d19fd779"
},
"signed": false,
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"ageDays": 1162,
"chainId": 8453,
"balances": {
"eth": 0.0098,
"usdc": 0
},
"verified": true,
"riskLevel": "medium",
"accountType": "contract",
"firstSeenAt": "2023-08-18T18:36:29.000Z",
"sentTxCount": 0
}
}
},
"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": [
"address"
],
"properties": {
"address": {
"type": "string"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"flags": {
"type": "array",
"items": {
"type": "object",
"properties": {
"code": {
"type": "string"
},
"level": {
"type": "string"
},
"detail": {
"type": "string"
}
}
}
},
"proxy": {
"type": "object"
},
"signed": {
"type": "boolean"
},
"address": {
"type": "string"
},
"ageDays": {
"type": "number"
},
"chainId": {
"type": "number"
},
"balances": {
"type": "object",
"properties": {
"eth": {
"type": "number"
},
"usdc": {
"type": "number"
}
}
},
"verified": {
"type": "boolean"
},
"riskLevel": {
"enum": [
"low",
"medium",
"high",
"unknown"
],
"type": "string"
},
"accountType": {
"enum": [
"contract",
"eoa",
"eoa_eip7702_delegated"
],
"type": "string"
},
"firstSeenAt": {
"type": "string"
},
"sentTxCount": {
"type": "number"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-25 01:18Z
- Last indexed by Roundhouse
- 2026-10-26 15:25Z
- Last enriched (probe, favicon, geo)
- 2026-10-24 10:47Z
- 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
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 x402-research-iota.vercel.app 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=x402-research-iota.vercel.app' 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://x402-research-iota.vercel.app/api/firm/risk-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. 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.