Bulk Startup Name Check
Bulk startup name availability: check up to 10 candidate names at once for domains across 13 TLDs and GitHub, npm, PyPI, X usernames.
OtherLiveeip155:8453Exactvia cdp
StartupDomainAvailabilityUsernameBrand
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far.
$10.83
Verified settled volume
224 settlements proven x402 by their on-chain EIP-3009 marker.
$0.080
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-10-23 12:12Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x28410EaC7393dba041cd5a92eEfe7a8E834310bbThe wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
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 requires x402 payment. The price and payment options are in the PAYMENT-REQUIRED response header (x402 v2). Pay with an x402 client, then retry to receive the data.",
"llms": "https://startup.use.x402atlas.com/llms.txt",
"error": "payment_required",
"price": "$0.08 per call",
"method": "GET",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
"amount": "80000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
"amount": "80000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
"amount": "80000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"tier": "standard",
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"merchant": "x402Atlas"
},
"payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
"amount": "80000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
],
"contact": {
"email": "support@x402atlas.com"
},
"openapi": "https://startup.use.x402atlas.com/openapi.json",
"resource": {
"url": "https://startup.use.x402atlas.com/startup-domain-check/bulk",
"tags": [
"startup",
"domain",
"availability",
"username",
"brand"
],
"mimeType": "application/json",
"description": "Bulk startup name availability: check up to 10 candidate names at once for domains across 13 TLDs and GitHub, npm, PyPI, X usernames.",
"serviceName": "Bulk Startup Name Check"
},
"x402Version": 2,
"documentation": "https://startup.use.x402atlas.com/docs"
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.08USDC≈ $0.08 USD
on Base · exact scheme
Pay 0.08 USDC on Base to 0x2841…310bb. The signed payment is good for 5 minutes.
- Paid to
- 0x2841…310bb
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 80000 smallest units
80000units
on Polygon · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x2841…310bb
- Token contract
- 0x3c49…c3359
- Payment window
- 5 minutes
80000units
on Arbitrum · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- 0x2841…310bb
- Token contract
- 0xaf88…e5831
- Payment window
- 5 minutes
80000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme
That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.
- Paid to
- ASt6xv…tXrNQ
- Token contract
- EPjFWd…TDt1v
- Payment window
- 5 minutes
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
"amount": "80000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
{
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
"amount": "80000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"tier": "standard",
"version": "2",
"merchant": "x402Atlas"
},
"payTo": "0x28410EaC7393dba041cd5a92eEfe7a8E834310bb",
"amount": "80000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"tier": "standard",
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"merchant": "x402Atlas"
},
"payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
"amount": "80000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"query": "Quill Nest,Stripe"
}
},
"output": {
"type": "json",
"example": {
"query": "Quill Nest,Stripe",
"results": [
{
"name": "quillnest",
"query": "Quill Nest",
"domains": [
{
"url": "https://quillnest.com",
"domain": "quillnest.com",
"status": "taken"
},
{
"url": "https://quillnest.io",
"domain": "quillnest.io",
"status": "available"
},
{
"url": "https://quillnest.ai",
"domain": "quillnest.ai",
"status": "available"
},
{
"url": "https://quillnest.co",
"domain": "quillnest.co",
"status": "available"
},
{
"url": "https://quillnest.dev",
"domain": "quillnest.dev",
"status": "available"
},
{
"url": "https://quillnest.app",
"domain": "quillnest.app",
"status": "available"
},
{
"url": "https://quillnest.xyz",
"domain": "quillnest.xyz",
"status": "available"
},
{
"url": "https://quillnest.net",
"domain": "quillnest.net",
"status": "taken"
},
{
"url": "https://quillnest.org",
"domain": "quillnest.org",
"status": "taken"
},
{
"url": "https://quillnest.so",
"domain": "quillnest.so",
"status": "available"
},
{
"url": "https://quillnest.sh",
"domain": "quillnest.sh",
"status": "available"
},
{
"url": "https://quillnest.gg",
"domain": "quillnest.gg",
"status": "available"
},
{
"url": "https://quillnest.me",
"domain": "quillnest.me",
"status": "available"
}
],
"handles": [
{
"url": "https://github.com/quillnest",
"status": "taken",
"platform": "github"
},
{
"url": "https://www.npmjs.com/package/quillnest",
"status": "available",
"platform": "npm"
},
{
"url": "https://pypi.org/project/quillnest/",
"status": "available",
"platform": "pypi"
},
{
"url": "https://x.com/quillnest",
"status": "unknown",
"platform": "x"
}
],
"summary": {
"taken": 4,
"unknown": 1,
"available": 12
},
"queried_at": "2026-10-23T10:00:00Z"
},
{
"name": "stripe",
"query": "Stripe",
"domains": [
{
"url": "https://stripe.com",
"domain": "stripe.com",
"status": "taken"
},
{
"url": "https://stripe.io",
"domain": "stripe.io",
"status": "taken"
},
{
"url": "https://stripe.ai",
"domain": "stripe.ai",
"status": "taken"
},
{
"url": "https://stripe.co",
"domain": "stripe.co",
"status": "taken"
},
{
"url": "https://stripe.dev",
"domain": "stripe.dev",
"status": "taken"
},
{
"url": "https://stripe.app",
"domain": "stripe.app",
"status": "taken"
},
{
"url": "https://stripe.xyz",
"domain": "stripe.xyz",
"status": "taken"
},
{
"url": "https://stripe.net",
"domain": "stripe.net",
"status": "taken"
},
{
"url": "https://stripe.org",
"domain": "stripe.org",
"status": "taken"
},
{
"url": "https://stripe.so",
"domain": "stripe.so",
"status": "taken"
},
{
"url": "https://stripe.sh",
"domain": "stripe.sh",
"status": "taken"
},
{
"url": "https://stripe.gg",
"domain": "stripe.gg",
"status": "taken"
},
{
"url": "https://stripe.me",
"domain": "stripe.me",
"status": "taken"
}
],
"handles": [
{
"url": "https://github.com/stripe",
"status": "taken",
"platform": "github"
},
{
"url": "https://www.npmjs.com/package/stripe",
"status": "taken",
"platform": "npm"
},
{
"url": "https://pypi.org/project/stripe/",
"status": "taken",
"platform": "pypi"
},
{
"url": "https://x.com/stripe",
"status": "taken",
"platform": "x"
}
],
"summary": {
"taken": 17,
"unknown": 0,
"available": 0
},
"queried_at": "2026-10-23T10:00:00Z"
}
],
"queried_at": "2026-10-23T10:00:00Z"
}
}
},
"tags": [
"startup",
"domain",
"availability",
"username",
"brand"
],
"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": [
"query"
],
"properties": {
"query": {
"type": "string",
"maxLength": 1009,
"minLength": 1,
"description": "Comma-separated list of up to 10 startup or company names"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"query",
"queried_at",
"results"
],
"properties": {
"query": {
"type": "string"
},
"results": {
"type": "array",
"items": {
"type": "object",
"required": [
"query",
"name",
"queried_at",
"domains",
"handles",
"summary"
],
"properties": {
"name": {
"type": "string",
"description": "Checked name: query lowercased, spaces and punctuation stripped"
},
"query": {
"type": "string"
},
"domains": {
"type": "array",
"items": {
"type": "object",
"required": [
"domain",
"status",
"url"
],
"properties": {
"url": {
"type": "string",
"format": "uri"
},
"domain": {
"type": "string"
},
"status": {
"enum": [
"available",
"taken",
"unknown"
],
"type": "string",
"description": "unknown = no definite answer (timeout, rate limit, unsupported handle syntax)"
}
}
},
"description": "One entry per TLD: com io ai co dev app xyz net org so sh gg me"
},
"handles": {
"type": "array",
"items": {
"type": "object",
"required": [
"platform",
"status",
"url"
],
"properties": {
"url": {
"type": "string",
"format": "uri",
"description": "Public profile or package page"
},
"status": {
"enum": [
"available",
"taken",
"unknown"
],
"type": "string",
"description": "unknown = no definite answer (timeout, rate limit, unsupported handle syntax)"
},
"platform": {
"enum": [
"github",
"npm",
"pypi",
"x"
],
"type": "string"
}
}
}
},
"summary": {
"type": "object",
"required": [
"available",
"taken",
"unknown"
],
"properties": {
"taken": {
"type": "integer"
},
"unknown": {
"type": "integer"
},
"available": {
"type": "integer"
}
},
"description": "Status counts over domains and handles"
},
"queried_at": {
"type": "string",
"format": "date-time"
}
}
},
"description": "One /startup-domain-check object per name, in submission order"
},
"queried_at": {
"type": "string",
"format": "date-time"
}
}
}
}
}
}
},
"category": "utility"
}
}Provenance
- Seen in the source catalog
- 2026-10-23 12:12Z
- Last indexed by Roundhouse
- 2026-10-26 20:00Z
- Last enriched (probe, favicon, geo)
- 2026-10-23 14:17Z
- 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. 3 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 Bulk Startup Name Check 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=Bulk%20Startup%20Name%20Check' 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://startup.use.x402atlas.com/startup-domain-check/bulk, 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.