open solid

API reference

Base URL during the preview: https://laso.finance. x402 routes are paid per call. Bearer routes take the session id_token. The full machine-readable contract is the OpenAPI 3.1 spec.

Account

Route Auth Purpose
POST /signup none Start an account for a human to claim
GET /signup-status none Poll a pending claim
POST /refresh none Renew an id_token
GET /get-account-balance Bearer Wallet and account balances
GET /get-auth-link Bearer One-time dashboard sign-in link for the human
GET /get-pricing none Every product's fee and limits
GET /get-supported-countries none Where each product works

Wallet

Call Auth Purpose
getAgentWallet Bearer Addresses and balance
agentX402Pay Bearer Pay a route or any x402 URL
agentWalletTransfer Bearer Send USDC out
moveAgentWalletFunds Bearer Move USDC between Solana and Base
getAgentSpendLimit Bearer Read the per-payment cap

Cards

Route Auth Purpose
POST /create-reloadable-card Bearer New reloadable card, free
GET /fund-card-balance Bearer Top up from the wallet, free
POST /withdraw-card-balance Bearer Move card balance back
GET /get-card x402 USA prepaid card, $5 to $1,000, no fee
GET /order-intl-card x402 International prepaid card
GET /get-card-data Bearer Card number, status and balance
GET /list-card-transactions Bearer Charges on a card
GET /search-merchants Bearer Merchant acceptance database

Payouts

Route Auth Purpose
GET /get-push-to-card x402 Debit card payout, 4.8%
GET /send-bank-payment x402 ACH payment, 0.25%
GET /send-payment x402 Venmo or PayPal, 4.9%
GET /get-payment-status Bearer Follow a payout
GET/POST/DELETE /payment-recipients Bearer Saved recipients

Banking

Call Auth Purpose
createBankingProfile Bearer Start; returns a KYC link if needed
getBankingApplication Bearer Outstanding fields
updateBankingApplicationDetails Bearer Answer them
submitBankingApplication Bearer Submit
createBankingAccount / listBankingAccounts Bearer Open accounts, read routing numbers
createBankingRecipient / addBankingDestination Bearer Register who you pay
listBankingTransactions Bearer Deposits and payouts

Gift cards

Route Auth Purpose
GET /search-gift-cards Bearer Catalog
GET /order-gift-card x402 Instant code

Webhooks and withdrawals

Route Auth Purpose
POST /register-webhook Bearer Signed notifications
POST /withdraw Bearer Send unspent account funds home
GET /get-withdrawal-status Bearer Follow a withdrawal