Foundry pricing: tech stack API
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8% complete: 1 of the 13 fields on our checklistSee the 13 fields
$1.00per 1,000 companiesWe haven't run Foundry through our tech stack API benchmark yet.We rank 450 plans for tech stack APIs by price. Half the plans cost $7.155 or less per 1,000 companies. This plan costs less per 1,000 companies than 87% of the 450 plans.cl0q's $50 monthly plan is the cheapest paid plan per 1,000 companies: $0.0042. Enterno's ₽2,511 yearly plan costs the least for 10,000 companies a month: about $2.50.GetProspect's $49 monthly plan covers any number of companies. GetProspect's $49 monthly plan costs less up front than cl0q's $50 monthly plan.JobsPipe, DetectZeStack and GetProspect are the best tech stack API providers in the Datacircle benchmark.
Plan: x402 pay per call Foundry's only plan
Call:
POST / Foundry's only call for this APIAPI: Tech stack API one of Foundry's 7 APIs
- Tech stack API
- Domain WHOIS API
- Email verification API
- IP company lookup API
- Phone validation API
- GitHub repository API
- Web scraping API
POST /v1/ readability - Web scraping API
POST /v1/ html-to-markdown - Web scraping API
POST /v1/ website-metadata
About this item
- Freshness. We don't know how fresh this plan's data is.
- 1 of the 13 fields on our checklist. Technology.
- Nothing to buy first. You pay per call.
- One call. You send
inputtoPOST /. The call returns the technologies the company uses.v1/ tech-stack - Who can get it: with conditions. Keep data: no API terms. Use data: no API terms.
Foundry: tech stack API alternatives
Foundry alternatives: other tech stack API providers by price
We list other providers' plans closest to this plan in price per 1,000 companies.
| This planFoundry, pay as you go | The Companies API, $5,950 yearly | WhatCMS, $500 monthly, 500,000 Detections, GET /API/Tech | StartupHub.ai, pay as you go, x402 | Outsend, top-up | |
|---|---|---|---|---|---|
| $ per 1,000 companies | $1.00 | $0.992 | $1.00 | $1.00 | $1.013 |
| Completeness | 8% | 69% | 23% | 15% | 15% |
| Billing | pay as you go | yearly | monthly | pay as you go | pay first |
| Pay | per call | $5,950 | $500 | per call | any amount |
| Enough for | as many as you pay for | 500,000 calls a month | 500,000 calls a month | as many as you pay for | as many as you pay for |
| Freshness | unknown | stored | stored | unknown | live |
| Who can get it | anyone with a wallet paying each call in USDC on Base (x402), with no account or API key | anyone | anyone with an account, one account each | anyone 18 or over | anyone with an account |
Sources
From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-09.
Product details
The key fields this plan's answer can hold, then each filled column in its row on the sheet.
- Technology
- Categories, not in the answer
- When and where seen, not in the answer
- Spend, not in the answer
- Apps, not in the answer
- About, not in the answer
- Size, not in the answer
- Places, not in the answer
- Traffic, not in the answer
- Rank, not in the answer
- Contact, not in the answer
- Social, not in the answer
- Reviews, not in the answer
| $ per 1,000 companies | $1.00 |
|---|---|
| Per | call |
| Billing | pay as you go |
| Aggregators | none |
|---|
| Also pays for | nothing else |
|---|
| $ per 1,000 | $0.00 |
|---|
| Their pitch | Website tech stack detector: frameworks, CMS, analytics, CDN and server behind a site. Input: a URL. |
|---|
| Keep data | no API terms |
|---|---|
| Use data | no API terms |
| Pay | per call |
|---|
| Per second | 0.5 |
|---|---|
| Batch | 1 |
| Answer | in the call |
|---|
| You send | input |
|---|---|
| Method | POST |
| Path | /v1/tech-stack |
| Plan | x402 pay per call |
|---|---|
| Who can get it | anyone with a wallet paying each call in USDC on Base (x402), with no account or API key |
The 6 fields the plan's answer can hold
website, technology name, CDN, generator, powered by, web server