What is Laso Finance?
Laso Finance is a payment API that lets AI agents spend cryptocurrency. Using the x402 protocol, agents can programmatically order prepaid cards (US only) and send Venmo/PayPal payments with USDC on the Base blockchain. 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: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.
What can agents do?
| Action | Endpoint | Cost |
|---|---|---|
| Order a prepaid card | GET /get-card | 1000 USDC |
| Send a Venmo payment | GET /send-payment | 1000 USDC |
| Send a PayPal payment | GET /send-payment | 1000 USDC |
| Order a gift card | GET /order-gift-card | 9,000 USDC |
| Browse gift card catalog | GET /search-gift-cards | Free |
| Send to a U.S. debit card | GET /push-to-card | 9,541.98 USDC |
| Get auth credentials | GET /auth | $0.001 USDC |
| Poll for card details | GET /get-card-data | Free |
| Get dashboard login link | GET /get-auth-link | Free |
| Refresh expired token | POST /auth | Free |
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