Blink Skill

Bitcoin Lightning wallet operations via the Blink API. Enables agents to check balances, receive payments via invoices, send payments over Lightning, track transactions, monitor prices, and automatically pay for L402-gated web services.

What is Blink?

Blink is a custodial Bitcoin Lightning wallet with a GraphQL API. Key concepts:

• API Key — authentication token (format: blink_...) with scoped permissions (Read, Receive, Write)
• BTC Wallet — balance denominated in satoshis
• USD Wallet — balance denominated in cents (stablecoin pegged to USD)
• Lightning Invoice — BOLT-11 payment request string (lnbc...) used to receive payments
• Lightning Address — human-readable address (user@domain) for sending payments without an invoice
• LNURL — protocol for interacting with Lightning services via encoded URLs
• L402 — HTTP payment protocol (RFC draft) that gates resources behind a Lightning invoice. Servers return HTTP 402 with a macaroon + invoice; clients pay and retry with the token.

Environment