Datacircle

heade.rs pricing: tech stack API

heade.rs's siteThis page as plain textCompany technologies API: tech stack APIs comparedheade.rs: tech stack API alternatives

Is heade.rs yours? Write to us about our scores for this plan. We invite selected tool providers to our WhatsApp group.

15% complete: 2 of the 13 fields on our checklistSee the 13 fields
$0.00per 1,000 companiesIn our tech stack API benchmark, this plan scores 52.3 out of 100. heade.rs ranks 12th of 50 providers.We rank 488 plans for tech stack APIs by price. Half the plans cost $7.833 or less per 1,000 companies. This plan and 3 others tie for the lowest price per 1,000 companies of the 488 plans. See the best free tech stack API plan.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 Botoi are the best tech stack API providers in the Datacircle benchmark.
Type a number to see the cheapest heade.rs plan for that many companies. The table below then sorts the other plans by what each costs.
Plan: Free heade.rs's only plan
Call: GET /api/{query} heade.rs's only call
API: Tech stack API one of heade.rs's 3 APIs

About this item

  • Live. heade.rs reads the company's website when you call the API.
  • 2 of the 13 fields on our checklist. Technology, Categories.
  • Nothing to pay. heade.rs limits how many calls you get but gives no number.
  • One call. You send query to GET /api/{query}. The call returns the technologies the company uses.
  • Who can get it: anyone, with no account or API key. Keep data: no API terms. Use data: no API terms.

heade.rs: tech stack API alternatives

heade.rs alternatives: every tech stack API provider ranked

We list other providers' plans closest to this plan in price per 1,000 companies. Each plan in the table gives live data.

This planheade.rs, freeYourAITools, freeBotoi, freeCompanyfacts, freeRichAPI, free, Sandbox, POST /web_tech_stack
$ per 1,000 companies$0.00$0.00$0.00$0.00$0.00
Completeness15%15%23%8%8%
Billingfreefreefreefreefree
Pay$0$0$0$0$0
Enough fornot publishednot published1,000 calls a day300 calls a month100 calls, once
Freshnesslivelivelivelivelive
Who can get itanyone, with no account or API keyanyone, no account or API key, limited per IPanyone 18 or olderanyoneanyone

Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-10.

  1. heade.rs
  2. heade.rs/.well-known/agent-skills/heade-rs/SKILL.md
  3. heade.rs/api/1.1.1.1
  4. heade.rs/api/github.com
  5. heade.rs/llms.txt
  6. heade.rs/openapi.json
  7. heade.rs/terms

Product details

The key fields this plan's answer can hold, then each filled column in its row on the sheet.

  • Technology
  • Categories
  • 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
Score
Overall score52.3
Price score100
Accuracy score16
Cost to get started score100
Bundle score0
Performance score10
Price
$ per 1,000 companies$0.00
Percall
Billingfree
Aggregators
Aggregatorsnone
Charges
Also pays fornothing else
Not found
$ per 1,000 calls that find nothing$0.00
In their words
Their pitchTech stack: its server software, backend, framework, CMS and plugins, UI and CSS libraries, fonts and build tools, with versions where the site gives them away, each checked for end of life (endoflife.date) and known vulnerabilities (OSV)
Data
Freshnesslive
Keep datano API terms
Use datano API terms
Plan
Pay$0
Rate limit
Per second0.5 (30 a minute)
Batch1
Speed
Answerin the call
Median1.48 s
The call
You sendquery
MethodGET
Path/api/{query}
About the plan
PlanFree
Who can get itanyone, with no account or API key
The 9 fields the plan's answer can hold

domain, technologies, technology category, technology version, technology detection method, technology support status, latest technology version, third-party hosts, rendering mode

Best GTM APIs