# FreeQ, pay as you go: Tech stack API

> Firmographics, headcount-growth classification, homepage tech detection, and an explainable 0-100 lead score.

FreeQ's x402 pay per call plan for the tech stack API costs $50.00 per 1,000 companies. We check each provider's docs for 13 fields. FreeQ's docs list 1: Technology.
We haven't run FreeQ through [our tech stack API benchmark](https://datacircle.dev/best-tech-stack-api.txt) 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 14% of the 450 plans.
[cl0q's $50 monthly plan](https://datacircle.dev/company-technology-apis/cl0q/50-monthly/llms.txt) is the cheapest paid plan per 1,000 companies: $0.0042. [Enterno's ₽2,511 yearly plan](https://datacircle.dev/company-technology-apis/enterno/2511-yearly-explorer-get-api-v4-cms/llms.txt) costs the least for 10,000 companies a month: about $2.50.
[GetProspect's $49 monthly plan](https://datacircle.dev/company-technology-apis/getprospect/49-monthly/llms.txt) covers any number of companies. GetProspect's $49 monthly plan costs less up front than cl0q's $50 monthly plan.
[JobsPipe](https://datacircle.dev/company-technology-apis/jobspipe/149-monthly-growth-post-v1-stack-scan/llms.txt), [DetectZeStack](https://datacircle.dev/company-technology-apis/detectzestack/79-monthly-mega-get-analyze/llms.txt) and [GetProspect](https://datacircle.dev/company-technology-apis/getprospect/49-monthly/llms.txt) are the best tech stack API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/company-technology-apis/freeq/pay-as-you-go
- [Company technologies API: tech stack APIs compared](https://datacircle.dev/best-tech-stack-api.txt)
- Get it: https://x402.freeq.one/tools?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- Request: `POST https://x402.freeq.one/tools/company_signals`
- API key: not needed
- Its API docs: https://x402.freeq.one/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing#/paths/~1tools~1company_signals
- Sold by: FreeQ (https://freeq.one?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing)
- Checked: 2026-11-09

## In the answer

- Completeness: 8%
- Technology: ✓

## Price

- $ per 1,000 companies: $50.00
- Per: call
- Billing: pay as you go

## Aggregators

- Aggregators: none

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Firmographics, headcount-growth classification, homepage tech detection, and an explainable 0-100 lead score.

## Data

- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: per call

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: one of domain or name
- Method: POST
- Path: /tools/company_signals

## About the plan

- Plan: x402 pay per call
- Who can get it: anyone with a wallet paying each call in USDC on Base (x402), no account or API key

## The 3 fields the plan's answer can hold

technologies, headcount growth classification, lead score

## FreeQ's plans (1)

- [FreeQ, pay as you go](https://datacircle.dev/company-technology-apis/freeq/pay-as-you-go/llms.txt): $50.00 per 1,000, 8% complete

## FreeQ's calls for this API (1)

- `POST /tools/company_signals`: [FreeQ, pay as you go](https://datacircle.dev/company-technology-apis/freeq/pay-as-you-go/llms.txt)

## FreeQ's APIs (11)

- [FreeQ: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/freeq/pay-as-you-go/llms.txt)
- [FreeQ: tech stack API pricing, 1 plan](https://datacircle.dev/company-technology-apis/freeq/pay-as-you-go/llms.txt)
- [FreeQ: domain authority API pricing, 1 plan](https://datacircle.dev/domain-authority-apis/freeq/pay-as-you-go/llms.txt)
- [FreeQ: email finder API pricing, 1 plan](https://datacircle.dev/find-email-apis/freeq/pay-as-you-go/llms.txt)
- [FreeQ: job postings API pricing, 1 plan](https://datacircle.dev/job-posting-apis/freeq/pay-as-you-go/llms.txt)
- [FreeQ: people enrichment API pricing, 1 plan](https://datacircle.dev/person-enrichment-apis/freeq/pay-as-you-go/llms.txt)
- [FreeQ: ranked keywords API pricing, 1 plan](https://datacircle.dev/ranked-keywords-apis/freeq/pay-as-you-go/llms.txt)
- [FreeQ: related keywords API pricing, 1 plan](https://datacircle.dev/related-keywords-apis/freeq/pay-as-you-go/llms.txt)
- [FreeQ: web scraping API pricing, 1 plan](https://datacircle.dev/web-scraping-apis/freeq/pay-as-you-go/llms.txt)
- [FreeQ: keyword research API pricing, 1 plan](https://datacircle.dev/keyword-research-apis/freeq/pay-as-you-go/llms.txt)
- [FreeQ: SERP API pricing, 1 plan](https://datacircle.dev/serp-apis/freeq/pay-as-you-go/llms.txt)

## FreeQ: tech stack API alternatives

- [WebTechSurvey, $500 pack, 10,000 credits, GET /v1/domaininfo](https://datacircle.dev/company-technology-apis/webtechsurvey/500-pack-10000-credits-get-v1-domaininfo/llms.txt): $50.00 per 1,000, 46% complete, 1 month
- [Hunter, $50 yearly, Data Platform, 1,000 Search credits, GET /combined/find](https://datacircle.dev/company-technology-apis/hunter/50-yearly-data-platform-1000-search-credits-get-combined-find/llms.txt): $50.00 per 1,000, 46% complete
- [OpenVerbs, pay as you go](https://datacircle.dev/company-technology-apis/openverbs/pay-as-you-go/llms.txt): $50.00 per 1,000, 38% complete
- [NetIntel, pay as you go](https://datacircle.dev/company-technology-apis/netintel/pay-as-you-go/llms.txt): $50.00 per 1,000, 0% complete
- [Cleanlist, $89 monthly](https://datacircle.dev/company-technology-apis/cleanlist/89-monthly/llms.txt): $59.333 per 1,000, 31% complete

## 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.

- https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://x402.freeq.one/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://x402.freeq.one/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://x402.freeq.one/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing
- https://x402.freeq.one/tools?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=tech-stack-api-pricing