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API Terms/Security & Auth
Category

Security & Auth APIs

62 Security & Auth APIs with verified auth, pricing and rate limits. 33 offer a free tier; 11 document an MCP server. Every field carries the source URL that states it.

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APICategoryAuthPricingFree tierLimitsOpenAPIMCPChecked
GitGuardian APIgitguardian.comSecurity & AuthAPI keyfreemium✓✓n/d✓2026-07-08
Pulsedivepulsedive.comSecurity & AuthAPI keyfreemium✓✓✓n/d2026-07-08
urlscan.iourlscan.ioSecurity & AuthAPI keyfreemium✓✓✓n/d2026-07-12
WorkOS APIworkos.comSecurity & AuthBearer tokenusage based✓✓n/d✓2026-07-13
AbuseIPDBabuseipdb.comSecurity & AuthAPI keyfreemium✓✓n/dn/d2026-07-12
DNS for Familydnsforfamily.comSecurity & Authno authfree✓✓n/dn/d2026-07-12
Fingerprint (FingerprintJS Pro)fingerprintjs.comSecurity & AuthAPI keyfreemium✓✓n/d✓2026-07-08
IPLogsiplogs.comSecurity & Authno authfree✓✓n/dn/d2026-07-08
Okta APIokta.comSecurity & AuthOAuth 2.0paid✓✓n/dn/d2026-07-13
Domain Intelligenceoti-labs.comSecurity & AuthAPI keyfreemium✓n/d✓n/d2026-07-12
PhishStatsphishstats.infoSecurity & AuthAPI keyfreemium✓✓n/dn/d2026-07-08
Scaniiscanii.comSecurity & AuthBasic authfreemium✓✓n/dn/d2026-07-12
Auth0auth0.comSecurity & AuthOAuth 2.0freemium✓n/dn/d✓2026-07-08
Descope APIdescope.comSecurity & AuthBearer tokenfreemium✓✓n/dn/d2026-07-13
FullHuntfullhunt.ioSecurity & Authn/dfreemium✓✓n/d✓2026-07-26
GreyNoisegreynoise.ioSecurity & AuthAPI keyfreemium✓n/dn/d✓2026-07-08
M3O (Mu)m3o.comSecurity & AuthBearer tokenusage based✓n/dn/d✓2026-07-12
MojoAuthmojoauth.comSecurity & AuthAPI keyfreemium✓n/dn/dn/d2026-07-08
Privacy.comprivacy.comSecurity & Authn/dfreemium✓n/dn/d✓2026-07-26
Stytchstytch.comSecurity & Authn/dusage based✓n/dn/d✓2026-07-12
Censyscensys.ioSecurity & Authn/dfreemium✓n/dn/d✓2026-07-12
Greip APIgreip.ioSecurity & AuthAPI keyfreemium✓n/dn/dn/d2026-07-08
Kinde APIkinde.comSecurity & AuthOAuth 2.0freemium✓n/dn/dn/d2026-07-13
LoginRadiusloginradius.comSecurity & Authn/dfreemium✓✓n/dn/d2026-07-12
MalDatabasemaldatabase.comSecurity & Authn/dfreemium✓✓n/dn/d2026-07-26
Web of Trust (WOT) APImywot.comSecurity & Authn/dpaid✓✓n/dn/d2026-07-26
SuperTokens APIsupertokens.comSecurity & AuthAPI keyusage based✓n/dn/dn/d2026-07-13
Bitwardenbitwarden.comSecurity & Authn/dfreemium✓n/dn/dn/d2026-07-08
Clerk APIclerk.comSecurity & Authn/dfreemium✓n/dn/dn/d2026-07-13
Stellastrastellastra.comSecurity & Authn/dpaid✓n/dn/dn/d2026-07-26
TruAnon Private APItruanon.comSecurity & Authn/dusage based✓n/dn/dn/d2026-07-26
1Password Events API1password.comSecurity & Authn/dpaidn/dn/dn/dn/d2026-07-26
MalwareBazaarabuse.chSecurity & Authn/dfreen/dn/dn/dn/d2026-07-12
Authentiq Connect APIauthentiq.ioSecurity & Authn/dcontact salesn/dn/dn/dn/d2026-07-12
Complete Criminal Checkscompletecriminalchecks.comSecurity & Authn/dfreemium✓n/dn/dn/d2026-07-12
Credas APIcredas.co.ukSecurity & Authn/dcontact salesn/dn/dn/dn/d2026-07-26
dead-dropdead-drop.xyzSecurity & Authno authfreen/dn/dn/dn/d2026-07-26
,emailrep.ioSecurity & AuthAPI keyn/dn/dn/dn/dn/d2026-07-26
IPQualityScore APIipqualityscore.comSecurity & Authn/dfreemium✓n/dn/dn/d2026-07-12
SecurityTrails APIsecuritytrails.comSecurity & AuthAPI keyn/dn/dn/dn/dn/d2026-07-26
Strata Identity (Maverics)strata.ioSecurity & Authn/dcontact salesn/dn/dn/dn/d2026-08-10
VirusTotalvirustotal.comSecurity & AuthAPI keyn/dn/d✓n/dn/d2026-07-26
VulDB APIvuldb.comSecurity & AuthAPI keyn/dn/dn/dn/dn/d2026-07-26
Bugcrowd APIbugcrowd.comSecurity & Authn/dcontact salesn/dn/dn/dn/d2026-07-26
hashlookup CIRCL APIcircl.luSecurity & Authn/dfreen/dn/dn/dn/d2026-07-26
HackerOnehackerone.comSecurity & AuthAPI keyn/dn/dn/dn/dn/d2026-07-26
HaveIBeenPwnedhaveibeenpwned.comSecurity & Authn/dn/dn/dn/dn/d✓2026-07-26
Truora Checks APItruora.comSecurity & Authn/dcontact salesn/dn/dn/dn/d2026-07-26
AlienVault Open Threat Exchange (OTX)alienvault.comSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-12
Authentiq APIappspot.comSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-26
BinaryEdgebinaryedge.ioSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-26
Cisco PSIRT openVuln APIcisco.comSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-26
CyCAT.org APIcycat.orgSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-12
FilterListsfilterlists.comSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-26
MalSharemalshare.comSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-12
Metacertmetacert.comSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-26
nextAuth APIn-auth.comSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-26
National Vulnerability Databasenist.govSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-26
UK Policepolice.ukSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-26
CAPEsandboxreadthedocs.ioSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-12
Shodanshodan.ioSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-26
Warrantwarrant.devSecurity & Authn/dn/dn/dn/dn/dn/d2026-07-26