Topics
Crypto wallet topics
Each topic gathers our dated insights and step-by-step help articles on one subject.
Circle Arc: USDC-Native Blockchain Guides
What Circle's Arc blockchain is, why USDC is its gas token, and how to send, bridge and get paid in USDC on Arc from a self-custody wallet.
3 insights · 3 how-tos
x402 Payments: How AI Agents Pay in USDC
How the x402 protocol lets AI agents pay for APIs in USDC over HTTP 402, and how to get paid by agents from a self-custody wallet with no server.
2 insights · 2 how-tos
Bitcoin Lightning: Self-Custody Payment Guides
How Bitcoin Lightning payments work in a self-custody wallet: Lightning addresses, invoices, fees, and when to use Lightning instead of on-chain Bitcoin.
2 insights · 3 how-tos
XRP, RLUSD and FXRP: XRP Ledger Guides
How to hold XRP, RLUSD and USDC on the XRP Ledger in a self-custody wallet: trust lines, reserves, and using XRP on Flare as FXRP.
3 insights · 3 how-tos
AI Crypto Assistant: How the Copilot Works
How an AI assistant can help manage crypto without holding your keys: it proposes, your device signs, with scam checks and spending insights.
1 insights · 2 how-tos
USDC in a Self-Custody Wallet: Safety, Chains and Yield
How to hold USDC yourself: what backs it, which chain it sits on, how to move it natively across chains, send it without gas, and earn observed yield.
7 insights · 3 how-tos
Self-Custody: Recovery, Inheritance and Protection
How to hold crypto yourself without losing it: recovery phrases, guardians, inheritance, spending limits, wallet freezes and exchange failures.
3 insights · 5 how-tos