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Prerequisites

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Make your first API call

Authenticate by passing your API key in the x-api-key header: 
curl -H "x-api-key: YOUR_API_KEY" https://api.meow.com/v1/accounts
A successful response returns your accounts.

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Environments

EnvironmentBase URL
Productionhttps://api.meow.com/v1
Sandboxhttps://api.sandbox.meow.com/v1
Use the sandbox environment for development and testing before going live.

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What can you build?

Accounts & Balances

Access account information, transactions, balances, and payment networks.

Transfers

Send ACH, wire, book, and crypto transfers programmatically.

Contacts

Manage cryptocurrency contacts for USDC transactions.

Invoicing

Create invoices with line items, discounts, and flexible payment options.

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Next steps

1

Set up authentication

Learn about API key scopes and multi-entity access.
2

Follow a tutorial

Try sending a USDC transfer or creating an invoice.
3

Explore the API

Browse the full API Reference for all available endpoints.