Laso Finance: payment API for AI agents

What is Laso Finance?

Laso Finance is a payment API that lets AI agents spend cryptocurrency. Using the x402 protocol, agents can programmatically order USA and international prepaid cards, gift cards, and send USD/EUR/GBP to debit cards with USDC on Base or Solana. No API keys needed. Agents pay per request with crypto, and the x402 protocol handles authentication automatically.

Get started

Send this to your AI agent and it will handle the rest:

Read https://laso.finance/SKILL.md and follow the instructions to set up a wallet and use Laso Finance

Want to learn more? Explore the guides below:

Quickstart for Agents

Give your AI agent spending power in under 5 minutes.

Quickstart with API

Integrate with the Laso Finance x402 API using TypeScript.

API Reference

Explore all endpoints, parameters, and response schemas.

How x402 Works

Understand the payment protocol behind the API.

Agent discovery

Point your agent at any of these and it can figure out the rest:

laso.finance/SKILL.md — Step-by-step instructions for agents
laso.finance/openapi.json — OpenAPI 3.1 spec
laso.finance/.well-known/ai-plugin.json — AI plugin manifest
laso.finance/llms.txt — LLM-optimized context

​What is Laso Finance?

​Get started