Developer-First Identity
The Auth & KYC Platform Developers Actually Love
No bloated JavaScript SDKs, no vendor lock-in, and zero magic abstractions. Just fast, predictable APIs built on modern Web standards and open cryptography.
Engineering Standards
Every endpoint accepts and returns standard JSON. Webhooks use HMAC-SHA256 signatures with timestamp drift detection. Sessions use standard HTTP-only cookies.
Sub-millisecond Edge verification via Ed25519 asymmetric cryptography and Web Crypto
Zero database network round-trips for server session validation with auth()
Strongly typed packages: @authsetu/nextjs, @authsetu/react, @authsetu/api-client
OpenAPI 3.1 specification for code generation in Go, Python, Rust, and Java
Interactive sandbox testing with instant test key issuance in under 60 seconds