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

# Start Building

> Choose your path into the Open Money Stack based on what you're building.

Pick the starting point that matches your use case. Each path links to the relevant section of these docs.

Need regulated rails, custodial infrastructure, compliance services, or a managed chain deployment? [Contact Polygon](https://info.polygon.technology/get-early-access).

## I want to add wallet infrastructure

Give users an onchain account with 1-click setup.

<CardGroup cols={2}>
  <Card title="Embedded Wallets" href="/wallets/embedded-wallets">
    Social login, passkeys, and smart sessions built into your app. No seed phrases.
  </Card>

  <Card title="Quickstart" href="/wallets/quickstart">
    Integrate an embedded wallet into a React app in minutes.
  </Card>

  <Card title="Smart Sessions" href="/wallets/smart-sessions">
    Scoped, time-limited permissions so users approve once and your app handles the rest.
  </Card>

  <Card title="Custodial Wallets" href="/wallets/custodial-wallets">
    Fully managed wallets for regulated products and enterprise deployments.
  </Card>
</CardGroup>

## I want to add fiat on-/off-ramps

Let users move between fiat and crypto without leaving your app.

<CardGroup cols={2}>
  <Card title="On-ramps" href="/stablecoins-payments/onramps">
    Licensed infrastructure for bank accounts, debit cards, and cash with KYC and AML built in.
  </Card>

  <Card title="Stripe on-ramp" href="/payment-services/stablecoins/onramps-stripe">
    Buy USDC with a card via Stripe's Crypto Onramp API.
  </Card>

  <Card title="Off-ramps" href="/stablecoins-payments/offramps">
    Convert onchain stablecoins back to fiat, compliantly.
  </Card>
</CardGroup>

## I want to accept stablecoin payments

Integrate native USDC on Polygon for instant, low-fee settlement.

<CardGroup cols={2}>
  <Card title="Integrate USDC on Polygon" href="/payment-services/stablecoins/usdc-native-integration">
    Native USDC integration: instant settlement, low fees, broad wallet support.
  </Card>

  <Card title="Stablecoins on Polygon" href="/stablecoins-payments/stablecoins">
    All stablecoins available on Polygon, with integration guides for USDC and cross-chain transfers.
  </Card>
</CardGroup>

## I want to enable cross-chain transactions

Orchestrate 1-click transactions across any chain, with any token, from any wallet.

<CardGroup cols={2}>
  <Card title="Trails overview" href="/trails/index">
    How Trails handles routing, liquidity aggregation, and gas abstraction across chains.
  </Card>

  <Card title="Quickstart" href="https://docs.trails.build/get-started">
    Integrate the Trails Widget, Headless SDK, or Direct API.
  </Card>
</CardGroup>

## I want to build agentic payment flows

Embed payments into AI agents and autonomous applications.

<CardGroup cols={2}>
  <Card title="Polygon Agentic CLI" icon="terminal" href="/payment-services/agentic-payments/polygon-agent-cli">
    CLI toolkit for AI agents: wallets, token operations, x402 micropayments, and onchain identity in a single install.
  </Card>

  <Card title="x402 Protocol" href="/payment-services/agentic-payments/x402/intro">
    HTTP-native micropayments for pay-per-use APIs and AI agents.
  </Card>

  <Card title="Agent Integration" href="/payment-services/agentic-payments/agent-integration/intro">
    ERC-8004 reputation standard and LLM wallet MCP.
  </Card>
</CardGroup>

## I want to use an existing chain

Build on Polygon Chain, the public settlement layer for payments, stablecoins, and enterprise applications.

<CardGroup cols={2}>
  <Card title="Building on Polygon Chain" href="/pos/get-started/building-on-polygon">
    RPC endpoints, chain configuration, and deployment guides for Polygon's public chain.
  </Card>

  <Card title="Blockchain overview" href="/blockchain-rails/index">
    Understand the full blockchain layer: Polygon Chain, Chain Development Kit (CDK), and Agglayer.
  </Card>

  <Card title="Run a Node" href="/pos/how-to/prerequisites">
    System requirements, snapshots, and setup guides for running a full node on Polygon Chain.
  </Card>

  <Card title="Become a Validator" href="/pos/get-started/becoming-a-validator">
    Requirements, staking, and step-by-step setup for running a Polygon validator node.
  </Card>
</CardGroup>

## I want to deploy my own chain

Launch a custom ZK-powered chain with dedicated throughput and compliance controls.

<CardGroup cols={2}>
  <Card title="Polygon CDK" href="/chain-development/cdk/get-started/overview">
    Build and launch a ZK-powered chain in days, not months.
  </Card>

  <Card title="AggLayer" href="/interoperability/agglayer/index">
    Cross-chain interoperability and shared liquidity built into every CDK chain by default.
  </Card>
</CardGroup>