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Alion Company Tech Stack Lookup
x402
Alion Company Tech Stack Lookup is a paid API for AI agents from alion.io, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-29).
Returns the technology stack used by a company, including top technologies and total stack size, based on job posting signals.
Price / call$0.01
Success—
StatusUnknown
How this service works
Plain-HTTP twin of the Alion MCP server. Every tool is also a GET/POST endpoint. Send "Authorization: Bearer <key>" (a key from https://alion.io/developers/keys); calls are paid from the account's credits. Or pay a paid tool per call in USDC with x402 (https://x402.org), no account: call it without a key, sign one of the offers in the PAYMENT-REQUIRED header of its 402 and repeat the call with the PAYMENT-SIGNATURE header; or with MPP (https://paymentauth.org): answer a WWW-Authenticate: Payment challenge with Authorization: Payment <credential> (USDC on Base or Solana, a transfer you sign or have sent). Docs: https://alion.io/developers
Output
Returns a JSON object with the company's name, domain, website, industry, size band, headquarters, and tech stack details including a ranked list of top technologies (with associated job count signals) and the total number of technologies in the stack.
Example use cases
Competitor tech stack analysis
“Can you pull the technology stack for Notion using notion.so as their domain? I want to know what their top languages and tools are and how big their overall stack is.”
Sales prospecting tech qualification
“I'm prospecting a company at hubspot.com — can you check what technologies they use so I know if our product fits their stack before I reach out?”
Startup engineering due diligence
“We're evaluating a startup for investment. Their domain is linear.app — can you look up their tech stack and tell me what languages they hire for and how mature their tooling looks?”
Technical details
Endpoint
GEThttps://alion.io/mcp/rest/company_tech_stack?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need signal-rich, job-posting-derived technology stack data for a specific company — especially for competitive intelligence, sales qualification, or investment research. It is preferable to generic web scraping when you want structured, normalized tech stack data with industry and company metadata in a single call.
Side effects
- Company not found in Alion database — returns empty or 404 if domain/name/id doesn't match any tracked company
- Missing required query parameter — must supply at least one of id, url, name, or domain
- Invalid or expired API key — 401 Unauthorized response
- Insufficient credits — payment required via bearer key account or x402/MPP payment flow
- Rate limiting — too many calls in a short window
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"id": 64,
"url": "https://alion.io/company/stripe",
"name": "Stripe",
"stack": {
"top": [
{
"jobs": 219,
"name": "SQL"
},
{
"jobs": 137,
"name": "Python"
},
{
"jobs": 96,
"name": "Ruby"
}
],
"technologies_in_stack": 215
},
"domain": "stripe.com",
"website": "https://stripe.com",
"industry": "Financial Services",
"size_band": "1001-5000",
"headquarters": {
"city": "South San Francisco",
"country": {
"iso": "US",
"name": "United States"
}
},
"industry_segment": "Payment Processing & Gateways"
}
}Tags
x402
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