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.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.
Authorization: Bearer aw_live_... header.
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.