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.
GreatAPIs Score
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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
- Get a key at the provider
- 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.
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.
Developer reference
Free plan: up to 25,000 MAUs; Business Pro: from $50/month for 5,000 MAUs, scaling to 2,000,000+ MAUs; Enterprise plan: up to 15,000 requests/second with a 99.99% uptime SLA