Alion
Companies by industry, country, size, technology and hiring: A list of companies narrowed by any of those filters, each row with its basic card; a slice can be added to every row.
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.
{
"type": "https://paymentauth.org/problems/payment-required",
"x402": {
"error": "PAYMENT-SIGNATURE header is required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x970fEBc82Dd11F584817364f80E11c5AA7fA3555",
"amount": "40000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 90
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
},
"payTo": "Dsgdy2rxyAeA89yTakGm9mrABYuLJ5GKa2DEFhwyQZQv",
"amount": "40000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 90
},
{
"asset": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x970fEBc82Dd11F584817364f80E11c5AA7fA3555",
"amount": "250000",
"scheme": "exact",
"network": "eip155:1",
"maxTimeoutSeconds": 90
}
],
"resource": {
"url": "https://alion.io/mcp/rest/search_companies",
"tags": [
"companies",
"jobs",
"market-data"
],
"iconUrl": "https://alion.io/images/favicons/android-chrome-192x192.png",
"mimeType": "application/json",
"description": "Companies by industry, country, size, technology and hiring: A list of companies narrowed by any of those filters, each row with its basic card; a slice can be added to every row.",
"serviceName": "Alion"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 5,
"detail": "compact",
"country": "GB",
"industry": "Fintech"
}
},
"output": {
"type": "json",
"example": {
"items": [
{
"id": 1759477,
"name": "Depository Trust & Clearing Corporation",
"domain": "dtcc.com",
"industry": "Financial Services",
"open_jobs": 326,
"size_band": "1001-5000",
"hq_country": "US",
"founded_year": 1999,
"last_job_posted": "2026-10-20"
},
{
"id": 1806,
"name": "State Street",
"domain": "statestreet.com",
"industry": "Financial Services",
"open_jobs": 1376,
"size_band": "5000+",
"hq_country": "US",
"founded_year": 1792,
"last_job_posted": "2026-10-20"
}
],
"has_more": true,
"returned": 2,
"warnings": [],
"next_cursor": "WzE3OTI0NjU3MTAsMTgwNl0",
"filters_applied": {
"sort": "recent_hiring",
"country": {
"iso": "GB",
"name": "United Kingdom"
},
"industry": {
"input": "Fintech",
"market_ids": 51
}
}
}
}
},
"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",
"properties": {
"ats": {
"type": "string"
},
"size": {
"type": "string"
},
"sort": {
"enum": [
"recent_hiring",
"open_jobs",
"score",
"newest",
"name",
"recent_funding"
],
"type": "string",
"default": "recent_hiring"
},
"limit": {
"type": "integer",
"default": 20,
"maximum": 50,
"minimum": 1
},
"query": {
"type": "string"
},
"cursor": {
"type": "string"
},
"detail": {
"enum": [
"standard",
"compact"
],
"type": "string",
"default": "standard"
},
"hiring": {
"type": "boolean"
},
"country": {
"type": "string"
},
"startup": {
"type": "boolean"
},
"ai_level": {
"enum": [
"A",
"B",
"C"
],
"type": "string"
},
"industry": {
"type": "string"
},
"investor": {
"type": "string"
},
"founded_to": {
"type": "integer",
"maximum": 2100,
"minimum": 1800
},
"technology": {
"type": "string"
},
"founded_from": {
"type": "integer",
"maximum": 2100,
"minimum": 1800
},
"hiring_level": {
"enum": [
"A",
"B",
"C"
],
"type": "string"
},
"raised_since": {
"type": "string"
},
"funding_stage": {
"type": "string"
},
"min_open_jobs": {
"type": "integer",
"minimum": 1
},
"min_round_usd": {
"type": "integer",
"minimum": 0
},
"include_agencies": {
"type": "boolean",
"default": false
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
},
"error": "payment_required",
"offer": {
"id": "company.list",
"url": "https://alion.io/catalog#company.list",
"unit": "per company in a list",
"price": {
"usd": 0.002,
"credits": 0.02
},
"title": "Companies by industry, country, size, technology and hiring",
"sample": "https://alion.io/companies-using/python.json"
},
"price": {
"usd": 0.04,
"credits": 0.4
},
"title": "Payment required",
"detail": "This call is paid: an API key, an x402 payment (PAYMENT-REQUIRED) or an MPP credential (WWW-Authenticate: Payment).",
"status": 402,
"catalog": "https://alion.io/catalog.json",
"message": "This call costs up to 0.4 credits ($0.04), paid from an Alion account. Send an API key from https://alion.io/developers/keys as \"Authorization: Bearer <key>\", or connect https://alion.io/mcp in ChatGPT, Claude or any MCP client and sign in. Or pay this one call in USDC with x402, no account: sign one of the PAYMENT-REQUIRED offers and repeat the call with the PAYMENT-SIGNATURE header - or with MPP: pay a WWW-Authenticate: Payment challenge (a USDC transfer you sign or have sent) and repeat the call with Authorization: Payment <credential>.",
"how_to_pay": [
{
"url": "https://alion.io/developers/keys",
"method": "api_key"
},
{
"url": "https://alion.io/.well-known/oauth-protected-resource/mcp",
"method": "oauth"
},
{
"url": "https://alion.io/developers/pricing",
"method": "credits",
"usd_per_credit": 0.1
},
{
"url": "https://x402.org",
"about": "Per call in USDC, no account: the PAYMENT-REQUIRED header (x402 v2) of this answer, also below as \"x402\".",
"method": "x402",
"per_call": [
{
"usd": 0.04,
"network": "eip155:8453"
},
{
"usd": 0.04,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
},
{
"usd": 0.25,
"network": "eip155:1"
}
]
},
{
"url": "https://paymentauth.org",
"about": "Per call in USDC, no account: the WWW-Authenticate: Payment challenges of this answer (methods evm = Base, solana); the payer pays the gas.",
"method": "mpp",
"per_call": [
{
"usd": 0.04,
"method": "evm"
},
{
"usd": 0.04,
"method": "solana"
}
]
}
]
}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 0.01 USDC on Base to 0x970f…A3555. The signed payment is good for 1.5 minutes.
- Paid to
- 0x970f…A3555
- USD Coin contract
- 0x8335…02913
- Payment window
- 1.5 minutes
- As published
- 10000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x970fEBc82Dd11F584817364f80E11c5AA7fA3555",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 90
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"limit": 5,
"detail": "compact",
"country": "GB",
"industry": "Fintech"
}
},
"output": {
"type": "json",
"example": {
"items": [
{
"id": 1759477,
"name": "Depository Trust & Clearing Corporation",
"domain": "dtcc.com",
"industry": "Financial Services",
"open_jobs": 326,
"size_band": "1001-5000",
"hq_country": "US",
"founded_year": 1999,
"last_job_posted": "2026-10-20"
},
{
"id": 1806,
"name": "State Street",
"domain": "statestreet.com",
"industry": "Financial Services",
"open_jobs": 1376,
"size_band": "5000+",
"hq_country": "US",
"founded_year": 1792,
"last_job_posted": "2026-10-20"
}
],
"has_more": true,
"returned": 2,
"warnings": [],
"next_cursor": "WzE3OTI0NjU3MTAsMTgwNl0",
"filters_applied": {
"sort": "recent_hiring",
"country": {
"iso": "GB",
"name": "United Kingdom"
},
"industry": {
"input": "Fintech",
"market_ids": 51
}
}
}
}
},
"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",
"properties": {
"ats": {
"type": "string"
},
"size": {
"type": "string"
},
"sort": {
"enum": [
"recent_hiring",
"open_jobs",
"score",
"newest",
"name",
"recent_funding"
],
"type": "string",
"default": "recent_hiring"
},
"limit": {
"type": "integer",
"default": 20,
"maximum": 50,
"minimum": 1
},
"query": {
"type": "string"
},
"cursor": {
"type": "string"
},
"detail": {
"enum": [
"standard",
"compact"
],
"type": "string",
"default": "standard"
},
"hiring": {
"type": "boolean"
},
"country": {
"type": "string"
},
"startup": {
"type": "boolean"
},
"ai_level": {
"enum": [
"A",
"B",
"C"
],
"type": "string"
},
"industry": {
"type": "string"
},
"investor": {
"type": "string"
},
"founded_to": {
"type": "integer",
"maximum": 2100,
"minimum": 1800
},
"technology": {
"type": "string"
},
"founded_from": {
"type": "integer",
"maximum": 2100,
"minimum": 1800
},
"hiring_level": {
"enum": [
"A",
"B",
"C"
],
"type": "string"
},
"raised_since": {
"type": "string"
},
"funding_stage": {
"type": "string"
},
"min_open_jobs": {
"type": "integer",
"minimum": 1
},
"min_round_usd": {
"type": "integer",
"minimum": 0
},
"include_agencies": {
"type": "boolean",
"default": false
}
},
"additionalProperties": false
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-20 06:18Z
- Last indexed by Roundhouse
- 2026-10-26 13:16Z
- Last enriched (probe, favicon, geo)
- 2026-10-20 11:15Z
- x402 version
- 2
- Max timeout
- 90s
- 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 Alion 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=Alion' 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://alion.io/mcp/rest/search_companies, 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.