Compute an HMAC signature (hex) of an input string with a secret key. Supports sha256, sha512 and other algorithms — for webhook signing and message authentication.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.001500 USDC | 0x4395...d965 |
| Polygon | exact | $0.001500 USDC | 0x4395...d965 |
| Arbitrum One | exact | $0.001500 USDC | 0x4395...d965 |
| solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp | exact | 0.00 tokens | 566SN4...BfYd |
| eip155:480 | exact | 0.00 tokens | 0x4395...d965 |