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Unwall

Unwall is a payment infrastructure platform built for AI agents. One API gives your agents access to three payment rails — x402 protocol payments, on-chain USDC transfers, and fiat ACH — all routed automatically through a single endpoint.

Unified Payments

One endpoint routes to x402, USDC transfer, or fiat ACH based on the recipient. No rail selection logic needed in your agent.

USDC Wallets

Every project gets a USDC wallet on Base chain, custodied by Bridge.xyz. Fund it on-chain or via fiat deposit.

x402 Protocol

Pay-per-API-call with automatic USDC settlement. Your agent pays for x402-enabled services directly, with no pre-negotiation or subscriptions.

MCP Server

Native integration with Claude, Cursor, and other MCP clients via the @unwall/mcp-server package.

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How It Works

1

Create a project

Sign up at app.unwall.xyz and create a project. Each project is an isolated wallet with its own balance and transaction history.
2

Fund with USDC on Base

Get your project’s deposit address and send USDC on the Base network. Funds appear in your balance once the transaction confirms on-chain.
3

Generate an API token with scoped permissions

Create a token with the permissions your agent needs: read, pay, and x402. The token looks like aw_live_... and is shown only once at creation time.
4

Call POST /v1/pay

Your agent calls a single endpoint with a recipient. Unwall auto-routes to the right payment rail — x402 for protocol-enabled URLs, USDC for on-chain addresses, or fiat for bank account recipients.
Everything your agent needs is accessible through a single Authorization: Bearer aw_live_... header.

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Next Steps

Quickstart

Start making payments from your AI agent in under 5 minutes.

API Reference

Explore every endpoint with request and response examples.

MCP Server

Set up the MCP server for Claude, Cursor, and other MCP clients.