The Real-Time Settlement Layer for the
AI & API Economy

A middleware that meters API usage and triggers atomic settlement on the Canton Network. Developers pay only for what they consume. Providers capture revenue instantly. No subscriptions. No credit top-ups.

Read the Docs View Catalog

How It Works

Three steps to real-time API settlement

Step 1

Point to Settlex

Change one line of config. Replace the provider base URL with your Settlex gateway URL. Your existing code works as-is.

Step 2

We Proxy & Meter

Every API call flows through our gateway. We authenticate, meter usage, and forward requests to the provider transparently.

Step 3

Atomic Settlement

Once a usage threshold is reached, a DAML settlement is triggered on Canton. Funds move from your escrow to the provider instantly.

What You Can Build

Real use cases running on Settlex Flow

Live at Launch

Prediction Market AI Agent

An autonomous agent that continuously queries market data, social signals, and news to generate and settle predictions — without a human managing API billing.

APIs used

CoinMarketCapReal-time prices & market caps

Twitter / XSocial sentiment signals

News APIBreaking event feeds

Q2 2026

AI Agent Infrastructure

Power LLM-based agents that pay per token — not per month. Route OpenAI or Claude calls through Settlex and let the agent manage its own compute budget autonomously.

APIs used

OpenAIGPT-4o, o1 inference

ClaudeSonnet & Opus reasoning

Why Settlex Flow

Built for the machine economy, designed for developers

Optimized Capital Efficiency

Move from lump-sum monthly payments to micro-settlements that reflect actual usage patterns. Pay $0.002 per call, not $200 per month.

Verifiable Usage Audits

Every settlement is recorded on the Canton ledger and cryptographically verifiable to both parties — developer and provider — while remaining fully private to the outside world.

Agentic Commerce Ready

Enable AI agents to browse, select, and pay for API services autonomously without requiring a human-in-the-loop to manage billing.

Frictionless Scaling

Scale usage up or down instantly without renegotiating tiers or managing seat limits. Your spend follows your demand curve exactly.

One Line Change

Switch from direct provider calls to settled API calls by changing the base URL

Before — Direct API call

// Direct call — your API key, your subscription
const res = await fetch(
  "https://pro-api.coinmarketcap.com/v1/cryptocurrency/quotes/latest?symbol=ETH",
  {
    headers: {
      "X-CMC_PRO_API_KEY": "your-cmc-api-key",
    },
  }
);

const data = await res.json();

After — Settled via Settlex

// Through Settlex — one key, usage-based settlement
const res = await fetch(
  "https://settlex-gateway.luganodes.com/gateway/coinmarketcap/v1/cryptocurrency/quotes/latest?symbol=ETH",
  {
    headers: {
      "x-settlex-api-key": "your-settlex-key",
      "idempotency-key": crypto.randomUUID(),
    },
  }
);

const data = await res.json();
// Canton settlement triggered automatically

For Developers

Pay only for what you use

Just-in-Time payments — capital stays in your wallet until a service is rendered
No monthly subscriptions or pre-paid credit traps
One-line integration — swap the base URL in your existing code
Private audit trail — every settlement is verifiable to you and the provider, invisible to everyone else

For API Providers

Capture revenue instantly

Revenue realized on every successful execution — no invoicing overhead
Zero counterparty risk — settlement is atomic and on-ledger
No credit system management or subscription tier complexity
Reach new customers through the Settlex Catalog — no integration required

The Real-Time Settlement Layer for the AI & API Economy