The payment infrastructure for agentic economy

One line of code to monetize any API. Built for autonomous agents.

One-line integrationx402 ProtocolAI-first
Quick Start
import { quid } from '@quid-sh/express';

app.use(quid.init('quid_live_abc123xyz'));

app.get('/api/weather', 
  quid.charge('price_abc123xyz'),  // ← Add price ID here
  (req, res) => {
    res.json({ temp: 72 });
  }
);
That's it. Your API is now monetized.

How It Works

Three steps to frictionless monetization

Detect 402

API returns 402 Payment Required

Auto Pay

Quid SDK handles Net Dollar payment

Retry + Access

Request succeeds instantly

Built for Developers

Everything you need to monetize your digital services

One-Line Integration
Add monetization with a single function call
Multi-Language SDKs
Node, Go, Python, Rust support with consistent APIs
Revenue Analytics
Real-time dashboards and detailed insights

Revenue at a Glance

Track performance with real-time analytics

Quid Dashboard
$12,847
Revenue
2,341
Requests
156
Users
98.9%
Uptime

Revenue Chart

Recent Transactions

API Call #1001+$0.05
API Call #1002+$0.05
API Call #1003+$0.05

Built for Every Use Case

From APIs to AI agents, Quid scales with your business

API Providers
Monetize per request

Perfect for REST APIs, GraphQL endpoints, and microservices

Content Providers
Articles, downloads, media

Paywall premium content with seamless user experience

AI Agents
Machine-native payments

Enable AI-to-AI transactions and autonomous commerce

SaaS Platforms
Usage-based billing

Charge customers based on actual consumption

Why Choose Quid?

Built on x402 Protocol
Developer-first design
AI/Agent-first architecture
Instant micropayments

We're not just building another payment processor. We're creating the infrastructure for the next generation of digital commerce, where machines pay machines and value flows as freely as information.

Ready to ship?

Start building with Quid today

Join the future of frictionless payments. Get started in minutes.

Start building in minutes.