# 27 heade.rs alternatives in 2026

Last updated: November 11, 2026.

The best heade.rs alternatives for IP company lookup APIs: IPKit, thenetworkery and DC5 WHOIS, by our benchmark of November 10, 2026.

## IP company lookup API alternatives

[heade.rs](https://datacircle.dev/ip-company-lookup-apis/heade-rs/free) is #6 of the 61 providers we rank. Every provider of this API, ranked: [IP company lookup API: best providers in 2026](https://datacircle.dev/best-ip-company-lookup-api)

1. [IPKit, free](https://datacircle.dev/ip-company-lookup-apis/ipkit/free): Overall score 94.1, Accuracy score 96, $0.00 per 1,000 IP addresses
2. [thenetworkery, free](https://datacircle.dev/ip-company-lookup-apis/thenetworkery/free): Overall score 90.8, Accuracy score 100, $0.00 per 1,000 IP addresses
3. [DC5 WHOIS, free, Public instance](https://datacircle.dev/ip-company-lookup-apis/dc5-whois/free-public-instance-get-api-v1-lookup): Overall score 89.4, Accuracy score 91, $0.00 per 1,000 IP addresses
4. [MxToolbox, free](https://datacircle.dev/ip-company-lookup-apis/mxtoolbox/free-get-api-v1-lookup-asn): Overall score 86.3, Accuracy score 73, $0.00 per 1,000 IP addresses
5. [Enterno, free, Open API](https://datacircle.dev/ip-company-lookup-apis/enterno/free-scout-get-api-v4-asn#free-open-api-get-api-open-ip): Overall score 82.2, Accuracy score 75, $0.00 per 1,000 IP addresses
7. [ip.guide, free](https://datacircle.dev/ip-company-lookup-apis/ip-guide/free): Overall score 81.8, Accuracy score 75, $0.00 per 1,000 IP addresses
8. [DNSlytics, free](https://datacircle.dev/ip-company-lookup-apis/dnslytics/free): Overall score 80.9, Accuracy score 73, $0.00 per 1,000 IP addresses
9. [ipwhois.io, free](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/free): Overall score 80.5, Accuracy score 71, $0.00 per 1,000 IP addresses
10. [IPBot, free, Anonymous](https://datacircle.dev/ip-company-lookup-apis/ipbot/free-anonymous-get-v1-ip-ip): Overall score 79.8, Accuracy score 88, $0.00 per 1,000 IP addresses
11. [IPLocate, $499 monthly, 5,000,000 requests per month](https://datacircle.dev/ip-company-lookup-apis/iplocate/free#499-monthly-5000000-requests-per-month-get-lookup-ip): Overall score 79.3, Accuracy score 100, $0.10 per 1,000 IP addresses

## Tech stack API alternatives

[heade.rs](https://datacircle.dev/company-technology-apis/heade-rs/free) is #12 of the 50 providers we rank. Every provider of this API, ranked: [Tech stack API: best providers in 2026](https://datacircle.dev/best-tech-stack-api)

1. [JobsPipe, $149 monthly, Growth](https://datacircle.dev/company-technology-apis/jobspipe/free-free-post-v1-stack-scan#149-monthly-growth-post-v1-stack-scan): Overall score 72.5, Accuracy score 74, $1.49 per 1,000 companies
2. [DetectZeStack, $79 monthly, Mega](https://datacircle.dev/company-technology-apis/detectzestack/free-get-analyze#79-monthly-mega-get-analyze): Overall score 66.0, Accuracy score 57, $1.58 per 1,000 companies
3. [Botoi, $9 monthly](https://datacircle.dev/company-technology-apis/botoi/free#9-monthly): Overall score 55.1, Accuracy score 44, $0.03 per 1,000 companies
4. [RichAPI, $100 pack, Starter](https://datacircle.dev/company-technology-apis/richapi/free#100-pack): Overall score 45.0, Accuracy score 61, $20.00 per 1,000 companies
5. [PredictLeads, pay as you go, 10,001-100,000 API Calls](https://datacircle.dev/company-technology-apis/predictleads/free#pay-as-you-go-10001-100000-api-calls): Overall score 42.8, Accuracy score 45, $10.00 per 1,000 companies
6. [Strale, top-up from €10, Prepaid wallet](https://datacircle.dev/company-technology-apis/strale/free-trial-credits-post-v1-do-tech-stack-detection#top-up-from-10-prepaid-wallet-post-v1-do-tech-stack-detection): Overall score 39.1, Accuracy score 39, $33.76 per 1,000 companies
10. [YourAITools, free](https://datacircle.dev/company-technology-apis/youraitools/free): Overall score 57.9, Accuracy score 19, $0.00 per 1,000 companies
11. [AgentData, $299 monthly](https://datacircle.dev/company-technology-apis/agentdata/free-no-account#299-monthly): Overall score 52.6, Accuracy score 28, $1.99 per 1,000 companies
13. [Companyfacts, $49 monthly](https://datacircle.dev/company-technology-apis/companyfacts/free#49-monthly): Overall score 48.0, Accuracy score 12, $2.45 per 1,000 companies
14. [cl0q, $10 monthly](https://datacircle.dev/company-technology-apis/cl0q/free#10-monthly): Overall score 42.3, Accuracy score 1, $0.013 per 1,000 companies

## Domain WHOIS API alternatives

[heade.rs](https://datacircle.dev/domain-whois-apis/heade-rs/free) is #13 of the 38 providers we rank. Every provider of this API, ranked: [Domain WHOIS API: best providers in 2026](https://datacircle.dev/best-domain-whois-api)

1. [thenetworkery, free](https://datacircle.dev/domain-whois-apis/thenetworkery/free): Overall score 95.5, Accuracy score 97, $0.00 per 1,000 domains
2. [FluentEDI, free](https://datacircle.dev/domain-whois-apis/fluentedi/free): Overall score 92.5, Accuracy score 86, $0.00 per 1,000 domains
3. [DomainDetails, €9.99 monthly, Alerts](https://datacircle.dev/domain-whois-apis/domaindetails/free-get-api-rdap#9-99-monthly-alerts-get-api-rdap): Overall score 90.6, Accuracy score 99, $0 extra per 1,000. The €9.99 monthly price covers any number of domains.
4. [DC5 WHOIS, free, Public instance](https://datacircle.dev/domain-whois-apis/dc5-whois/free-public-instance-get-api-v1-domain): Overall score 90.3, Accuracy score 97, $0.00 per 1,000 domains
5. [WhoisJSON, $120 monthly](https://datacircle.dev/domain-whois-apis/whoisjson/free#120-monthly): Overall score 89.1, Accuracy score 99, $0.014 per 1,000 domains
6. [Enterno, free, Open API](https://datacircle.dev/domain-whois-apis/enterno/free-scout#free-open-api): Overall score 88.1, Accuracy score 89, $0.00 per 1,000 domains
11. [Agent Toolbox, free](https://datacircle.dev/domain-whois-apis/agent-toolbox/free): Overall score 81.2, Accuracy score 81, $0.00 per 1,000 domains
12. [Pyxmark, free](https://datacircle.dev/domain-whois-apis/pyxmark/free): Overall score 75.1, Accuracy score 58, $0.00 per 1,000 domains
14. [DomScan, $6 monthly, Starter](https://datacircle.dev/domain-whois-apis/domscan/free-post-v1-whois-bulk#6-monthly-starter-post-v1-whois-bulk): Overall score 73.4, Accuracy score 87, $0.72 per 1,000 domains
15. [DomChecker, free](https://datacircle.dev/domain-whois-apis/domchecker/free): Overall score 72.5, Accuracy score 69, $0.00 per 1,000 domains

## See also

- [IPKit alternatives](https://datacircle.dev/ipkit-alternatives)
- [thenetworkery alternatives](https://datacircle.dev/thenetworkery-alternatives)
- [DC5 WHOIS alternatives](https://datacircle.dev/dc5-whois-alternatives)
- [MxToolbox alternatives](https://datacircle.dev/mxtoolbox-alternatives)
- [Enterno alternatives](https://datacircle.dev/enterno-alternatives)
- [ip.guide alternatives](https://datacircle.dev/ip-guide-alternatives)
- [DNSlytics alternatives](https://datacircle.dev/dnslytics-alternatives)
- [ipwhois.io alternatives](https://datacircle.dev/ipwhois-io-alternatives)