Authentication & Authorization — entry 003 of 4
MojoAuth
MojoAuth is a passwordless authentication API offering OTP over SMS/email, magic links, passkeys/WebAuthn, and social login, plus SSO connections (OIDC/SAML) for enterprise buyers. Every request to its api.mojoauth.com backend requires an X-API-Key header, returning structured JSON errors ("API Key Required" / "Invalid API Key") when the key is missing or wrong. Pricing is free up to 25,000 monthly active users, with paid Startup and Enterprise plans beyond that.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsJSONResponses can be requested as JSON.
GreatAPIs Score
Score75
Authentication15/25API key required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats9/15Single response format
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/mojoauth/"><img src="https://greatapis.com/badge/mojoauth.svg" alt="Scored 75 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.