402utils.com
Micro API utilities for AI agents, priced per call and paid in USDC over the x402 protocol. PDF, screenshot, OG-image and more — no signup, no keys.
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.
{
"hint": "This endpoint is paid via the x402 protocol. Decode the base64 PAYMENT-REQUIRED response header for payment requirements, or retry with an x402 v2 client.",
"error": "payment_required"
}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 0.003 USDC on Base to 0xc55A…9C291. The signed payment is good for 1 minute.
- Paid to
- 0xc55A…9C291
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 3000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291",
"amount": "3000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"email": "user@example.com"
}
},
"output": {
"type": "json",
"example": {
"email": "user@example.com",
"checkedAt": "2026-07-04T00:00:00.000Z",
"mxRecords": [
"mx1.example.com"
],
"disposable": false,
"roleAccount": false,
"syntaxValid": true,
"domainExists": true
}
}
},
"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": [
"email"
],
"properties": {
"email": {
"type": "string",
"format": "email",
"description": "The email address to validate (required)."
}
},
"description": "Query string only."
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"email",
"syntaxValid",
"domainExists",
"mxRecords",
"disposable",
"roleAccount",
"checkedAt"
],
"properties": {
"email": {
"type": "string"
},
"checkedAt": {
"type": "string",
"format": "date-time"
},
"mxRecords": {
"type": "array",
"items": {
"type": "string"
}
},
"disposable": {
"type": "boolean",
"description": "Domain is on the disposable-email blocklist."
},
"roleAccount": {
"type": "boolean",
"description": "Local part is a role address (info, support…)."
},
"syntaxValid": {
"type": "boolean"
},
"domainExists": {
"type": "boolean",
"description": "Best-effort: domain has MX or A records (DoH)."
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-02 01:18Z
- Last indexed by Roundhouse
- 2026-09-24 13:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-14 06:15Z
- x402 version
- 2
- Max timeout
- 60s
- 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. 30 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 402utils.com 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=402utils.com' 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://402utils.com/v1/email-check, 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.