Build
Practical guides, one task each, with code you can adapt. They assume you have run the Quick start; the terms they use are in Core concepts, and the reasons behind each rule are in the Developer tour.
What do you want to do?
| I want to… | Go to |
|---|---|
| Copy a working snippet for a common task | Examples |
| Configure Ethereum, Bitcoin, Tron, Solana, TON or Avalanche | Connect to a real network |
| Send a withdrawal or payout, with the right fee | Send a transfer |
| Know when a payment is really done | Wait for confirmation |
Unstick a payment, or understand stalled | Fix a stuck transfer |
| Sign with a hardware wallet, a PSBT or a custody service | Cold and asynchronous signing |
| Detect and credit customer deposits | Receive deposits |
| Run background workers and recover after a crash | Run workers and recover |
| Manage keys, custody signers, policy and secrets | Keys, signers and secrets |
| Test my payment code without a network | Test with the fake chain |
| Check everything before real money moves | Go to production |
A service, end to end
Most services built on crypto-aio follow the same outline, and each step has a guide:
When a guide says a family behaves differently, the details are in Networks, and every error code's safe action is in Errors.