Kakr Labs
PTERI Platform

Deterministic
Identity for
Humans & AI

Most digital identity systems don't verify identity — they approximate it. PTERI replaces guesswork with cryptographic proof.

ZeroShared Secrets
100%Self-Custodial
BinaryOutcomes Only
PTERI Verification
01
Device Key Loaded
02
Request Signed
03
Litecoin PoW Anchor
04
Authority Verified
Authority Verified — Access Granted

Device → Cryptographic Proof → Verifiable Action

User Device
Device Keys
PTERI API
PoW Anchor
Verified ✓

Interactive Demo

See PTERI In Action

Experience the self-custodial web wallet interface used to authorize requests and manage decentralized identity.

The Root Problem

Why Identity Keeps Failing

Identity failures are structural. As AI and automation accelerate, fragile systems fail more often — and cost more.

Legacy Systems
HIGH RISK
User Request
Passwords guessed
Risk Signals
OTPs intercepted
Infer Identity
Credentials stolen
Allow / Deny
Probabilistic guess
VS
PTERI
CRYPTOGRAPHIC
User Request
Cryptographic Proof
Device Signs
Verified on-chain
PTERI Verifies
Deterministic ID
Allow / Deny
Binary outcome ✓

Defining Properties

Identity as
Cryptographic
Authority

No shared secrets. No custodial storage. No probability scores. Just cryptographic proof.

Identity bound to on-device cryptographic keys

Keys generated and held solely by the authority holder

Zero shared secrets exchanged with any server

Proof is stateless and independently verifiable

No confidence scores or reputation systems used

PTERI Authority Model
Zero-Custody · Deterministic · Verifiable
Device-Bound KeysGenerated & stored only on your device
Cryptographic SignaturesEvery action signed — no shared secrets
Litecoin PoW AnchoringEnergy-backed, immutable, globally verifiable
Binary OutcomeAllow or deny — no ambiguity, no guessing
If authority proven → Access Granted. If not → Access Denied.

Core Modules

The 6 Core Modules

01

PTERI Authentication

MFA Enhancement

Layer unbreakable on-device cryptographic signatures on top of existing MFA/OTP flows.

02

PTERI Identity

Decentralized ID (DID)

Self-sovereign Decentralized Identity. You own and control your keys entirely on-device.

03

PTERI Payments

Self-Custodial Litecoin

Self-custodial Litecoin payments with optional MWEB privacy and energy-backed PoW settlement.

04

PTERI Intelligence

AI Agents & A2A

Verifiable cryptographic authority for autonomous agents. Secure agent-to-agent interactions without credential sharing.

05

PTERI Enterprise

Google Cloud-Backed

Google Cloud-backed infrastructure with 99.99%+ uptime SLAs. Audit-ready and globally scalable.

06

PTERI Developer Tools

SDK, REST API & MCP2

Full SDKs + AI-powered MCP2 tools for rapid integration. Start small with MFA, scale to sovereign identity.

Who It's For

Built for Teams
That Can't Afford Breach

Fintech & Exchanges
Eliminate withdrawal fraud and unauthorized transfers.
AI Platforms
Prevent AI impersonation and credential exposure.
Enterprise SaaS
Remove stored credential risk from your cloud stack.
Payment Infrastructure
Add privacy-ready cryptographic settlement.

Use Cases

Identity Use Cases

Passwordless Login
Replace passwords with cryptographic proof.
Replace SMS / TOTP 2FA
Eliminate phishable OTPs with wallet-signed auth.
Admin & Privileged Access
No shared credentials for internal tools.
Service & System Identity
Replace static API keys with scoped authority.
AI Agent Identity
Verifiable authority for autonomous AI agents.
Self-Custodial Payments
Authorize Litecoin with no custodian.

Developer Experience

Why Developers
Love PTERI

Drop-in cryptographic identity. Works alongside your existing stack — no rewrites required.

Drop-in SDK
npm install and integrate in minutes. Works alongside OAuth, JWT, and existing auth flows.
Incremental Adoption
Layer PTERI on top of existing systems. Start with MFA, expand to payments or AI.
Language Agnostic
SDKs for JS, Python, Java, PHP, Go. REST API works with any stack.
MCP2 AI Integration
AI-powered MCP2 tools let LLMs and agents call PTERI to sign, verify, or delegate.
Read the Docs
verify.ts
TypeScript
// npm install @kakr/pteri-sdk
import { PteriAuth } from '@pteri/sdk'

// Verify a signed request — no backend secrets needed
const result = await PteriAuth.verify({
  payload:   request.body,
  signature: request.headers['x-pteri-sig'],
  policy:    'payment_authorization'
})

if (!result.isValid) {
  throw new UnauthorizedError('Authority not proven')
}

// Deterministic. Binary. No guessing.
return processTransaction(result.claims)

Simple Pricing for
Builders and Enterprises

No tokens. No gimmicks. Straightforward service pricing.

Free

Pteri Basic

$0/month

For developers starting out

  • API Calls: 3/sec
  • Max 50 API calls/month
  • Litecoin-Powered Explorer
  • Free API Testing
  • Developer Tutorials
  • Free Developer Guide
Get Started

Pteri Enterprise

Custom

For large-scale custom requirements

  • Unlimited API Calls
  • Enterprise-Grade BaaS
  • MWEB Privacy Protocol
  • Dedicated Instance
  • Custom API Integrations
  • White-Label Solutions
  • Unlimited Pteri Intelligence
  • Dedicated Enterprise Storage
  • 24/7 Priority Support
Contact Sales
1 / 3

Unlock Pricing & Plans

Verify your business details to access the complete PTERI pricing model.

Ready to Deploy

Secure Identity.
Secure AI. Secure Everything.

Most security systems alert you when the fire starts. PTERI removes the fuel.