The identity layer for Bitcoin payments
Send and receive Bitcoin like you do emails — to any wallet, over any rail. Made for humans and agents alike. ⚡
Cash App
user@cash.app
Built for the modern payments era
Lightning Address extends LNURL-pay with powerful capabilities for commerce, verification, and multi-rail payments.
Comments
Attach a message to a payment
Success Actions
Trigger content, messages, or URLs after payment
Payment Verification
Cryptographic proof of settlement, non-custodial
Sender Identity
Self-declared payer info (name, email, Lightning Address)
Currency Denomination
Express payment amounts in any unit of account
Reusable Requests
Persistent vs disposable payment links
Payment Rail Discovery
Multi-protocol destinations: BOLT12, Ark, Spark, Liquid, onchain BTC
What's in your Lightning Address?
Enter any Lightning Address to discover its capabilities.
The payment layer for the agentic web
Lightning Address is the simplest way for AI agents to send and receive Bitcoin — static, human-readable, and fully programmable.
Machine-Addressable
One HTTP call to pay anyone or any agent. No complex setup, no invoice exchange — just a simple address.
Transaction Context
Comments enable agents to include intent and context with every payment for better coordination.
Agent Attribution
Sender Identity (LUD-18) allows agents to identify themselves for accountability and trust.
Settlement Proof
Payment Verification (LUD-21) provides cryptographic proof of payment for autonomous verification.
/llms.txt available for LLMs to consume the protocol directly