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Subcategory answer

Authentication APIs and SDKs

22,239

companies run at least one of the 11 technologies in it, 0.04% of 54,527,857 in the index. Landing 12 Sept 2026.

Developer-focused auth services, SDKs, and libraries that provide authentication, protocols, and identity as a service.

Share of the subcategory by month

Clerk 35.0%Basic 25.7%NextAuth.js 20.1%Other 17.5%
ClerkBasicNextAuth.jsSPNEGOOther

Share of companies running any technology in this subcategory, monthlyof 22,239 companies with any of themlanding 12 Sept 2026

Each month is drawn as 100%, so the bands are shares and not counts; a company running two of these technologies is counted in both, and everything past the fourth is folded into Other. The series starts January 2021 because the panel is anchored at 31 Dec 2020

The 345 numbers in this chart
MonthClerkBasicNextAuth.jsSPNEGOOther
2021-0129.3%33.1%18.8%1.4%17.4%
2021-0229.3%33.1%18.8%1.4%17.4%
2021-0329.3%33.1%18.8%1.4%17.4%
2021-0429.3%33.1%18.8%1.4%17.4%
2021-0529.3%33.1%18.8%1.4%17.4%
2021-0629.3%33.1%18.8%1.4%17.4%
2021-0729.3%33.1%18.8%1.4%17.4%
2021-0829.3%33.1%18.8%1.4%17.4%
2021-0929.3%33.1%18.8%1.4%17.4%
2021-1029.3%33.1%18.8%1.4%17.4%
2021-1129.3%33.1%18.8%1.4%17.4%
2021-1229.3%33.1%18.8%1.4%17.4%
2022-0129.3%33.1%18.8%1.4%17.4%
2022-0229.3%33.1%18.8%1.4%17.4%
2022-0329.5%32.8%18.9%1.4%17.5%
2022-0429.5%32.8%18.9%1.4%17.5%
2022-0529.5%32.8%18.9%1.4%17.5%
2022-0629.5%32.8%18.9%1.4%17.5%
2022-0729.5%32.8%18.9%1.4%17.5%
2022-0829.5%32.8%18.9%1.4%17.5%
2022-0929.5%32.8%18.9%1.4%17.5%
2022-1029.5%32.8%18.9%1.4%17.5%
2022-1129.5%32.8%18.9%1.4%17.5%
2022-1229.5%32.8%18.9%1.4%17.5%
2023-0129.5%32.8%18.9%1.4%17.5%
2023-0229.5%32.8%18.9%1.4%17.5%
2023-0329.5%32.8%18.9%1.4%17.5%
2023-0429.5%32.8%18.9%1.4%17.5%
2023-0529.5%32.8%18.9%1.4%17.5%
2023-0629.5%32.8%18.9%1.4%17.5%
2023-0729.5%32.8%18.9%1.4%17.5%
2023-0829.5%32.8%18.9%1.4%17.5%
2023-0929.5%32.8%18.9%1.4%17.5%
2023-1029.5%32.8%18.9%1.4%17.5%
2023-1132.7%25.9%20.9%1.5%18.9%
2023-1232.7%25.9%20.9%1.5%18.9%
2024-0132.7%25.9%20.9%1.5%18.9%
2024-0232.7%25.9%20.9%1.5%18.9%
2024-0332.7%25.9%20.9%1.5%18.9%
2024-0432.7%25.9%20.9%1.5%18.9%
2024-0532.7%25.9%20.9%1.5%18.9%
2024-0632.7%25.9%20.9%1.5%18.9%
2024-0732.7%25.9%20.9%1.5%18.9%
2024-0832.7%25.9%20.9%1.5%18.9%
2024-0932.7%25.9%20.9%1.5%18.9%
2024-1032.6%25.9%20.9%1.5%19.0%
2024-1132.6%25.9%20.9%1.5%19.0%
2024-1232.6%25.9%20.9%1.5%19.0%
2025-0132.6%25.9%20.9%1.5%19.0%
2025-0232.6%25.9%20.9%1.5%19.0%
2025-0332.6%25.9%20.9%1.5%19.0%
2025-0432.8%25.9%20.8%1.6%18.9%
2025-0534.9%26.4%19.9%1.6%17.1%
2025-0635.2%26.4%19.6%1.7%17.2%
2025-0735.2%26.4%19.6%1.7%17.1%
2025-0835.1%26.4%19.7%1.6%17.2%
2025-0935.1%26.4%19.7%1.6%17.2%
2025-1035.1%26.4%19.7%1.6%17.2%
2025-1135.2%25.9%19.9%1.7%17.4%
2025-1235.2%25.9%19.9%1.7%17.4%
2026-0135.3%25.7%19.9%1.7%17.5%
2026-0235.2%25.7%19.9%1.7%17.5%
2026-0335.0%25.6%20.1%1.7%17.5%
2026-0435.0%25.7%20.1%1.7%17.5%
2026-0535.0%25.7%20.1%1.7%17.5%
2026-0635.0%25.7%20.1%1.7%17.5%
2026-0735.0%25.7%20.1%1.7%17.5%
2026-0835.0%25.7%20.1%1.7%17.5%
2026-0935.0%25.7%20.1%1.7%17.5%

The technologies ranked in Authentication APIs and SDKs

Companiesof 22,239 with any of themlanding 12 Sept 2026

#
Technology
Vendor
Companies
Share
1
Clerk
17,783
80.0%
2
Auth.js
1,850
8.3%
3
IETF
1,488
6.7%
4
IETF
85
0.38%
5
Hanko GmbH
28
0.13%
6
IETF
23
0.10%
7
Passport.js Project
1
no share

7 of 11 technologiesa company running two of them is counted in both, so the shares do not sum to 100%under 20 companies no share is published

4 of the 10 most detected technologies here sit under the publication gate on detector quality of 0.90, so they are listed rather than ranked: Microsoft Authentication 969, Userbase 18, NTLM 8, Passage 1.