# JSON Web Token Projects at AI Tinkerers

> Canonical HTML: https://aitinkerers.org/technologies/json-web-token
> Markdown URL: https://aitinkerers.org/technologies/json-web-token.md
> Technology record last updated: 2026-03-31T12:26:30Z
> Generated: 2026-09-21T11:43:46Z

JSON Web Token (JWT) is an open standard (RFC 7519) defining a compact, URL-safe method for securely transmitting claims between two parties via a digitally signed JSON object.

JWTs (pronounced 'jots') are the go-to for modern, stateless authorization and information exchange. The token uses a compact serialization format: `Header.Payload.Signature`, each part Base64URL-encoded. The Header specifies the token type and the signing algorithm (e.g., HMAC SHA256 or RSA). The Payload carries the 'claims' (data assertions) like `iss` (issuer), `exp` (expiration time), and custom user roles. Crucially, the Signature verifies the token's integrity: it’s calculated using the Header, the Payload, and a secret key. This structure allows a server to validate a user's identity and permissions—like an admin role—without a database lookup, simply by checking the cryptographic signature.

- Official technology site: https://jwt.io
- Public AI Tinkerers demos and talks: 1
- Result page: 1 of 1

## Recent Public Talks and Demos

### [HEX AI — Your AI Partner for Cybersecurity Operations.](https://nairobi.aitinkerers.org/talks/rsvp_ufl2D0XzVOU)

I’ll demo HEX AI, a security-focused AI assistant I built for ethical hackers and red teamers. It simulates real-world pentesting, red teaming, and malware analysis workflows in a safe, sandboxed environment. HEX includes OAuth auth, real-time AI streaming, M-PESA STK integration (via Instasend), and a live admin dashboard. I’ll walk through how I engineered the backend logic, prompt orchestration, and the layered safety mechanisms that keep everything purely educational and simulation-based.

- Event context: AI Tinkerers Nairobi - Edition #4 (Nov 6, 2025) — 2025-11-06 — Nairobi
- Public talk page: https://nairobi.aitinkerers.org/talks/rsvp_ufl2D0XzVOU

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