> ## Documentation Index
> Fetch the complete documentation index at: https://www.pulsarpay.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Ultra-low latency, pre-funded payment infrastructure designed for scalable pay-per-request digital services and AI agents.

<img className="block dark:hidden" src="https://mintcdn.com/pulsarpay/A_f-1Fv1seg38Lgb/logo/pulsar-logo-light.png?fit=max&auto=format&n=A_f-1Fv1seg38Lgb&q=85&s=20b2dd1e0c78fa044ae27cf7dc7f3348" alt="Pulsarpay Light" width="1508" height="386" data-path="logo/pulsar-logo-light.png" />

<img className="hidden dark:block" src="https://mintcdn.com/pulsarpay/-cMVu1zf8MR5Uw8A/logo/pulsar-logo-dark.png?fit=max&auto=format&n=-cMVu1zf8MR5Uw8A&q=85&s=1c51f2ef12f1f5782664717f93acc11f" alt="Pulsarpay Dark" width="1516" height="392" data-path="logo/pulsar-logo-dark.png" />

## Overview

Pulsarpay is a programmable payment layer that connects users and integrations through a real-time payment infrastructure — enabling services to charge per request and deliver value instantly. Users only pay for what they request. No failed payments, no approvals, no subscriptions.

<CardGroup cols={2}>
  <Card title="Quickstart" icon="rocket" href="/docs/quickstart">
    Integrate your first agent and start processing pay-per-request interactions in minutes.
  </Card>

  <Card title="API Reference" icon="code" href="/docs/api-reference/introduction">
    Explore endpoints for charges, earnings, and withdrawals.
  </Card>
</CardGroup>

## By the numbers

<CardGroup cols={3}>
  <Card title="45+" icon="plug">
    Live integrations
  </Card>

  <Card title="1.2K+" icon="users">
    Active developers
  </Card>

  <Card title="250K+" icon="bolt">
    Requests settled
  </Card>

  <Card title="<1500ms" icon="gauge">
    Average latency
  </Card>

  <Card title="99.9%" icon="circle-check">
    Uptime
  </Card>

  <Card title="3%" icon="percent">
    Platform fee
  </Card>
</CardGroup>

## Supported currencies

Pulsarpay operates with two independent currencies, each with its own balance. Charges, earnings, and withdrawals are never mixed across currencies.

<CardGroup cols={2}>
  <Card title="USDC · Solana" icon="bolt">
    Stablecoin on the Solana network. Users can deposit USDC directly or buy and convert from other crypto assets (USDT, SOL, BNB, and more) directly within Pulsarpay. Agents withdraw earnings to a Solana wallet.
  </Card>

  <Card title="USD · Fiat" icon="building-columns">
    US dollars. Users fund their account via card or bank transfer. Agents withdraw earnings directly to a PayPal account.
  </Card>
</CardGroup>

## Core concepts

<CardGroup cols={3}>
  <Card title="User-centric" icon="user">
    Users fund their account through supported payment methods or the integrated on-ramp, and authorize specific agents via API keys.
  </Card>

  <Card title="Agent-driven" icon="robot">
    Agents are registered services that execute tasks, validate user balance, and monetize usage via withdrawals.
  </Card>

  <Card title="Programmable" icon="gears">
    Access to funds is controlled through scoped API keys, enabling fine-grained authorization per agent.
  </Card>
</CardGroup>

## Financial infrastructure

Pulsarpay provides the financial primitives required to operate agent-based systems.

<Columns cols={2}>
  <Card title="Crypto on-ramp" icon="coins">
    Buy or convert crypto assets (USDT, SOL, BNB, and more) into USDC directly within Pulsarpay — no external wallets or exchanges needed.
  </Card>

  <Card title="Fiat on-ramp" icon="credit-card">
    Fund your account in USD via card or bank transfer. No crypto knowledge required.
  </Card>

  <Card title="Solana-powered" icon="bolt">
    Fast, low-cost USDC settlement on the Solana network.
  </Card>

  <Card title="Unified ledger" icon="list-check">
    A real-time internal ledger tracks deposits, charges, earnings, and withdrawals across all currencies.
  </Card>
</Columns>

## How it works

<Steps>
  <Step title="Add funds and API keys">
    Users fund their account — in USDC (via deposit or crypto conversion) or in USD (via card or bank transfer) — and create an API key scoped to a specific agent.
  </Step>

  <Step title="Request and charge">
    When a user triggers a service, the agent calls `POST /charges`. Pulsarpay validates the API key, confirms it is scoped to the requesting agent, and checks available balance — all in real time.
  </Step>

  <Step title="Deliver and earn">
    Once the charge is authorized, the agent performs the requested service and returns the result. Earnings accumulate and are withdrawn via `POST /withdraw`.
  </Step>
</Steps>

## Security

* **Scoped API keys** — assign keys to specific agents to isolate spending
* **Real-time validation** — every request is backed by a live balance check
* **Controlled access model** — users retain control over which agents can access their funds through explicit authorization

<Note>
  Pulsarpay enables developers to move from simple integrations to fully automated agent economies — without changing their payment infrastructure.
</Note>